ᖹᡂ 22 ᖺᗘ JAXA 䝇䞊䝟䞊䝁䞁䝢䝳䞊䝍䝅䝇䝔䝮⏝ᡂᯝሗ࿌
JAXA Supercomputer System Technical Summaries 2010
㻌
┠㻌 㻌 ḟ
࠙ᡂᯝᴫせࠚ
⯟✵ᢏ⾡
㟼⢔㉸㡢㏿ᶵ࿘ࡾࡢὶࢀࡢゎᯒ ···
࣐ࢡࣟࢪ࢙ࢵࢺᄇᑕࡼࡿࢪ࢙ࢵࢺ㦁㡢పῶࡢつᶍ
LESゎᯒ ···
ࢪ࢙ࢵࢺ㦁㡢పῶ⏝ࢹࣂࢫࡢ
LESゎᯒ ···
ࣇࣥ㠀ᐃᖖὶࢀゎᯒ ···
㉸㡢㏿ᶵᙧែࡢప㏿㧗㏄ゅ㣕⾜ࡢࣞࣀࣝࢬᩘຠᯝ ···
㧗㏿ὶయゎᯒࢯࣝࣂ
FaSTARࡢ㛤Ⓨ ···
භ㠃య⮬ື᱁Ꮚ⏕ᡂࢯࣇࢺ
HexaGridࡢ㛤Ⓨ ···
ከᏍቨࣔࢹࣝࢆ⏝࠸ࡓ㑄㡢㏿㢼Ὕࡢቨᨭᣢᖸ΅ゎᯒ ···
㢼ὝෆὶࢀゎᯒࡢࡓࡵࡢከᏍቨࣔࢹࣝࡢ㛤Ⓨ ···
ᐇᅾẼຠᯝࢆ⪃៖ࡋࡓࢯࢽࢵࢡࣈ࣮࣒ண ···
ᵓ㐀యࡢືゎᯒ ···
㧗ࣞࣀࣝࢬᩘ࠾ࡅࡿᅽ⦰ᛶள㡢㏿ὶࡢ㧗⢭ᗘゎᯒἲࡢ◊✲ ···
⯟✵ᶵ㦁㡢㛵㐃ࡋࡓ㡢㡪ࢩ࣑࣮ࣗࣞࢩࣙࣥࡢᛂ⏝㛵ࡍࡿ◊✲ ···
࢚ࣥࢪࣥẼࢆྵࡴ✵ຊ≉ᛶ᥎⟬ᩘ್ゎᯒᢏ⾡ࡢ◊✲ ···
ὶయ࣭⇕ఏᑟ㐃ᡂᩘ್ゎᯒᅛయ⇕ఏᑟࡢ㐃ᦠ ···
⯟✵ᶵࡢ✵ຊ࣭㦁㡢㛵ࡍࡿ◊✲ ···
CFD
ࡢᑠᆺ᪑ᐈᶵタィ㐺⏝㛵ࡍࡿ◊✲ ···
⯟✵ᶵᶵయ✵ຊ㦁㡢ࡢపῶண 㛵ࡍࡿ◊✲ ···
ᩘ್ィ⟬ࡼࡿ⯟✵ᶵ࿘ࡾ࠾ࡅࡿᆅ㠃ຠᯝࡢ᳨ド ···
ከ㔜᪕ᅇ࢚ࣈࣛࢫࢺࣀࢬࣝࡽᙧᡂࡉࢀࡿ᪕ᅇὶࢀሙࡢᩘ್ゎᯒ ···
༢ẁࣇࣥࡢ㠀ᐃᖖὶࢀゎᯒ ···
UPACS
ࢆ⏝࠸ࡓື⩼ิࡢ㠀ᐃᖖ✵ຊ≉ᛶ㛵ࡍࡿ◊✲ ···
⯟✵ᶵẼࡢᗈᇦᩘ್ゎᯒ ···
㉸㡢㏿㢼Ὕࡢጞື≉ᛶࡘ࠸࡚ ···
ࢯࢽࢵࢡࣈ࣮࣒᥎⟬ࡢࡓࡵࡢ㧗⢭ᗘ㏆ഐሙᅽຊἼᙧ᥎⟬ᢏ⾡㛵ࡍࡿ◊✲ ···
࣊ࣜࢥࣉࢱࡢప㦁㡢ᢏ⾡㛵ࡍࡿᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ ···
㟼⢔㉸㡢㏿◊✲ᶵ⏝ࣥࢸ࣮ࢡࡢタィᛶ⬟ゎᯒ ···
ࢹࢪࢱࣝ/ࢼࣟࢢ࣭ࣁࣈࣜࢵࢻ㢼Ὕࢩࢫࢸ࣒㛤Ⓨ㸦ࡑࡢ
2㸧 ···㉸㡢㏿ὶ୰࠾ࡅࡿ⮬↛ᒙὶᶵ㤳ࡢタィ ···
㉸㡢㏿ᶵࡢ⮬↛ᒙὶ⩼ࡢタィ ···
UPACS
ࡼࡿࣇࣥ㦁㡢ண 㛵ࡍࡿ◊✲ ···
࢚ࣥࢪࣥඛ㐍ᮦᩱࡢ◊✲···
పࢯࢽࢵࢡࣈ࣮࣒タィᴫᛕᐇドᶵ㸦S3CM㸧ࡢ✵ຊタィ ···
పࢯࢽࢵࢡࣈ࣮࣒タィᴫᛕᐇドᶵ㸦S3CM㸧ࡢ✵ຊゎᯒ ···
ᵓ㐀㸭㠀ᵓ㐀㔜ྜ᱁Ꮚἲࢆ⏝࠸ࡓࢥࣥࢥࣝࢻᶍᨃᙧ≧ࡢࢯࢽࢵࢡࣈ࣮࣒ゎᯒ ···
3 4 6 8 9 10 12 14 16 18 20 21 23 25 27 29 33 34 35 37 38 40 41 42 43 45 47 49 52 54 56 58 59 61 63
┠ 㻌 ḟ
ࣇࣥࢲࢡࢺෆ㠀ᐃᖖὶࢀゎᯒ ···
ᾮ⭷ᘧẼὶᄇᑕᘚ࠾ࡅࡿࢫ࣮࣡ࣛゅࡀᄇ㟝≉ᛶ࠼ࡿᙳ㡪 ···
⇞↝ჾෆ㒊ὶࢀゎᯒ ···
⯟✵ᶵ⏝࢚ࣥࢪࣥ⇞↝ჾࡢὶࢀ᭱㐺㛵ࡍࡿ◊✲ ···
Ꮫ㝿ࢩ࣑࣮ࣗࣞࢩࣙࣥࡼࡿ㧗⢭ᗘ࡞ࣃࣛࢩ࣮ࣗࢺࡢタィ㛤Ⓨ ···
ప㏿࠾ࡅࡿ࢚ࣥࢪࣥᑿᶵయࡢᖸ΅㛵ࡍࡿᩘ್ゎᯒ ···
Ᏹᐂ㛤Ⓨ
SRB-A
ᄇ↮ࡢ
CFD ···ὶࣔࢹࣝࡢ᪕ᅇὶᆺࣁࣈࣜࢵࢻࣟࢣࢵࢺ⇞↝ᐊෆὶ࠾ࡅࡿ㐺ᛂᛶࡢホ౯ ···
ᅛయࣟࢣࢵࢺ࣮ࣔࢱෆ㒊ᙎ㐨ᛶ⬟ࡢ㧗⢭ᗘᩘ್ண ࢩࢫࢸ࣒ࡢ㛤Ⓨ ···
࢙࣮࢘ࣈࣛࢲ࣮ຠᯝࢆ⏝ࡋࡓᆅⅬ㛫ࢧࣈ࣮࢜ࣅࢱࣝ㍺㏦ᶵࡢ✵ຊ᳨ウ ···
እ⩼ຍࡼࡿ⌮࢙࣮࢘ࣈࣛࢲ࣮ࡢప㏿✵ຊ≉ᛶᨵၿ ···
Ᏹᐂᶵタィ࠾ࡅࡿࢹ࣮ࢱྠᡭἲࡢ㐺⏝ᛶ᳨ウ ···
ᾮయࣟࢣࢵࢺ࢚ࣥࢪࣥ࠾ࡅࡿ⇞↝ືࡢᩘ್ⓗ◊✲ ···
H-2B
ࣉ࣮࣒ࣝຍ⇕ホ౯ࣟࢣࢵࢺ⇞↝ჾࣞࢰࢿ࣮ࢱᛶ⬟ホ౯ ···
ࣟࢣࢵࢺᡴୖࡆ㡢㡪ゎᯒ ···
≀య㐺ྜ࣭┤ࣁࣈࣜࢵࢻ㠀ᵓ㐀᱁Ꮚࢆ⏝࠸ࡓ
CFDゎᯒᡭἲࡢ㛤Ⓨࣉࢩࣟࣥࣟࢣࢵ
ࢺ✵ຊ≉ᛶࡢᩘ್ゎᯒ ···
ࢫࢡ࣒ࣛࢪ࢙ࢵࢺ࢚ࣥࢪࣥෆ㒊ᙧ≧ࡢ✵ẼຊᏛⓗຠᯝ ···
ᾮయࣟࢣࢵࢺ࢚ࣥࢪࣥタィゎᯒᢏ⾡ࡢ㧗ᗘ㛵ࡍࡿ◊✲ ···
MPD
ࢫࣛࢫࢱෆࣉࣛࢬ࣐ὶࢀࡢᩘ್ゎᯒ ···
JAXA
⾨ᫍ⎔ቃࣉࣛࢬ࣐ࢩ࣑࣮ࣗࣞࢱࡢ㛤Ⓨ ···
㧗 ⾪ᧁ㢼Ὕ࡛ࡢᐇᅾẼయ⇕✵ຊ≉ᛶ◊✲ ···
」ྜ࢚ࣥࢪࣥ࠾ࡅࡿ⇞↝≧ែไᚚ -ᨃఝ⾪ᧁἼࢆక࠺✵ẼὶᏍᆶ┤ᄇὶࡢΰྜ㛵 ࡍࡿᩘ್ゎᯒ- ···
ⅆᫍ᥈ᰝ⯟✵ᶵࡢ⩼ࡲࢃࡾࡢὶࢀゎᯒ⩼ᆺຠᯝ ···
ḟඖ⩼࿘ࡾࡢపࣞࣀࣝࢬᩘὶࢀࡢ࣐ࢵࣁᩘ౫Ꮡᛶ ···
ࣟࢣࢵࢺ㸫࣒ࣛࢪ࢙ࢵࢺ」ྜࢧࢡ࢚ࣝࣥࢪࣥࡢᩘ್ゎᯒ ···
ᇶ♏◊✲
㞳ࢆక࠺ὶቃ⏺ᒙࡢ
DNS ···ᾮ㛫ⅆ⅖ఏ࣓࢝ࢽࢬ࣒◊✲ ···
ཎጞᝨᫍ⣔┙࠾ࡅࡿ☢Ẽᅇ㌿Ᏻᐃᛶࡼࡿᅽຊࣂࣥࣉᙧᡂᚤᝨᫍᙧᡂ ···
IB
ἲࢆ⏝ࡋࡓつᶍィ⟬⏝ὶయࢯࣝࣂ࣮ࡢ㛤Ⓨ ···
✵ຊᙎᛶ⩼㛵ࡍࡿ◊✲···
㧗࢚ࣥࢱࣝࣆὶࡢᩘ್ゎᯒ ···
↓⾪✺⾪ᧁἼࡢ
3ḟඖ⢏Ꮚィ⟬㸸⾪ᧁἼ㑄⛣ᒙ୰ࡢ⢏Ꮚࢲࢼ࣑ࢡࢫ ···
㉸㡢㏿✺ධ࠾ࡅࡿ
DSMC⢏Ꮚィ⟬ ···
㉸⮫⏺ᅽ࠾ࡅࡿ
LOX/GH2ྠ㍈ᄇὶⅆ⅖ࡢ
LES ···CIP
ἲࢆ⏝࠸ࡓ☢Ẽᅪࢢ࣮ࣟࣂࣝ
MHDࢩ࣑࣮ࣗࣞࢩࣙࣥࣔࢹࣝࡢ㛤Ⓨ
···ᾮయ⇞ᩱᄇὶᚤ⢏㐣⛬ゎ᫂ࡢゎᯒ ···
⦪ ᑟධᆺᗈᖏᇦࢫࢡ࣒ࣛࢪ࢙ࢵࢺ࢚ࣥࢪࣥࡢ◊✲ ···
60cm
☢ຊᨭᣢኳ⛗⨨࠾ࡼࡧᩘ್ゎᯒࡼࡿ⌫ࡢᢠ ᐃ ···
Ᏹᐂࣉࣛࢬ࣐୰࠾ࡅࡿὶ☢Ẽࣜࢥࢿࢡࢩ࡛ࣙࣥࡢ⢏Ꮚຍ㏿ ···
༙ᇙ㎸ࡳᘧ࢚ࣥࢪࣥᦚ㍕
NWB᪑ᐈᶵ࠾ࡅࡿࣥࢸ࣮ࢡࢹࣇ࣮ࣗࢨࡢᩘ್ⓗ◊✲ ···
65 66 67 69 71 73
75 77 79 82 83 84 87 89 91 94 96 99 103 105 107 109 111 113 115
117 119 121 124 126 128 130 133 135 137 139 141 143 144 147
㉸㡢㏿ࣂࢵࢡࢫࢸࢵࣉ㞳ὶࢀࡢ㠀ᐃᖖᩘ್ゎᯒ ···
ࢫ࣌ࢡࢺࣝ-ࣇࣜࣥࢪἲࡼࡿᖹᯈቃ⏺ᒙࡢ㑄⛣㐣⛬ࡢ┤᥋ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ ···
⮬ື᱁Ꮚ⏕ᡂࢯࣇࢺὶయゎᯒࢥ࣮ࢻࢆ⤌ࡳ㎸ࢇࡔ
CFD࣏࣮ࢱࣝࢩࢫࢸ࣒ࡢᵓ⠏ ···
ࣟࢣࢵࢺ࣮࣌ࣟࢻࡢ㡢㡪ື㛵ࡍࡿ◊✲ ···
つᶍ ୰࡛Ⓨ⏕ࡍࡿ☢Ẽࣜࢥࢿࢡࢩࣙࣥࡢᛶ㉁㸸㟁☢⢏Ꮚࢩ࣑࣮ࣗࣞࢩࣙࣥ ···
ከᩘࡢ☢ẼᓥࡀᏑᅾࡍࡿつᶍࣜࢥࢿࢡࢩࣙࣥᒙ࡛ࡢ㟁Ꮚຍ㏿ ···
Ᏹᐂ㍺㏦⣔㛵ࢃࡿ㧗㏿ὶయຊᏛࡢ◊✲ ···
Ᏹᐂ 㑏ᶵࡢ⪏⇕ᮦᩱࡢ㓟⌧㇟㛵ࡍࡿ◊✲ ···
☢Ẽࣜࢥࢿࢡࢩࣙࣥ࠾ࡅࡿ㠀⇕ⓗ⢏Ꮚຍ㏿ ···
ᑠᆺࣟࢣࢵࢺࢆ⏝࠸ࡓ࢚ࢪ࢙ࢡࢱ࣭ࢪ࢙ࢵࢺࡢ✵ຊヨ㦂ࡢᩘ್ゎᯒ ···
࣒࣮ࣛࣟࢣࢵࢺ」ྜࢧࢡ࢚ࣝࣥࢪࣥࡢᩘ್ゎᯒ ···
⣽㛗≀యࡢ㏄ゅ㣕⾜࠾ࡅࡿᚋὶ㞳 ࡢᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ ···
ࡑࡢ
ࢫ࣮ࣃ࣮ࢥࣥࣆ࣮ࣗࢱࡢ⏝ຠ⋡ྥୖࡢࡓࡵࡢࢪࣙࣈࢫࢣࢪ࣮ࣗࣛࡢࣃ࣓࣮ࣛࢱ᭱㐺 ···
Ꮫඹྠ⏝(ᏱᐂᕤᏛ)
ᅽ⦰ᛶὶࡢ
Large-Eddy Simulation ···3
ḟඖつᶍࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⏝࠸ࡓ☢Ẽࣉࣛࢬ࣐ࢭࣝࡢᐇ⌧ྍ⬟ᛶ᳨ド ···
Ᏹᐂ㍺㏦ಀࡿὶὶࢀࡢᩘ್ゎᯒ ···
ẼἻὶ୰࠾ࡅࡿẼἻྠኈࡢ┦స⏝ࡢ┤᥋ᩘ್ゎᯒ ···
☢Ẽࣉࣛࢬ࣐ࢭࣝࡢᐇ⏝ྥࡅࡓ⢏Ꮚࢩ࣑࣮ࣗࣞࢩࣙࣥ◊✲ ···
࣐ࣝࢳࢫࢣ࣮ࣝࢩ࣑࣮ࣗࣞࢩࣙࣥࡼࡿᮦᩱ◚ቯᮦᩱᙉᗘ㛵ࡍࡿ◊✲ ···
ࣟࢣࢵࢺ࢚ࣥࢪࣥ࠾ࡼࡧ㉸㡢㏿㣕⩧య⏝࢚ࣥࢪࣥ㛵ࡍࡿ⇞↝ὶయࡢ◊✲ ···
࣮ࣞࢨ࣮Ᏹᐂ᥎㐍ෆ㒊⏕ࡌࡿࣉࣛࢬ࣐㠀ᖹ⾮㍽ᑕᛂὶࡢከḟඖ≀⌮ὶయゎᯒ ···
ከศᩓ⣔ࡶྵࡵࡓከ┦ࢹࢺࢿ࣮ࢩࣙࣥࡢᇶ♏㛵ࡍࡿᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ ···
Ꮫඹྠ⏝(Ᏹᐂ⌮Ꮫ)
┦ᑐㄽⓗ☢Ẽὶయ࠾ࡅࡿ☢Ẽࣜࢥࢿࢡࢩࣙࣥࢩ࣑࣮ࣗࣞࢩࣙࣥ ···
ᝨᫍẼᚠ⎔ࣔࢹࣝࡢ㛤ⓎẼೃࡢከᵝᛶ㛵ࡍࡿᩘ್ᐇ㦂 ···
➨୍ཎ⌮ศᏊືຊᏛἲࡼࡿ
14᪘ᾮయ㔠ᒓࡢࢲࢼ࣑ࢡࢫࡢ◊✲ ···
ᆅ⌫࠾ࡼࡧᝨᫍ☢ሙᡂᅉゎ᫂ࡢࡓࡵࡢ
Sub-Grid Scale (SGS)ࢲࢼࣔࢩ࣑࣮ࣗࣞࢩࣙࣥ ···ࣉࣛࢬ࣐⢏Ꮚࢩ࣑࣮ࣗࣞࢩࣙࣥࡼࡿ㠀ᐃᖖ⾪ᧁἼ㛵ࡍࡿ◊✲ ···
ࣈࣛࢵࢡ࣮࣍ࣝ㝆╔ὶ࠾ࡅࡿ≧ែ㑄⛣ࢪ࢙ࢵࢺᙧᡂࡢ☢Ẽὶయᩘ್ᐇ㦂 ···
┦ᑐㄽⓗࢪ࢙ࢵࢺࡢᩘ್ὶయຊᏛⓗ◊✲ ···
Ỉᫍࡢᮦᩱ≀㉁ࡢ㉳※㸪⇕ྐ㸪࠾ࡼࡧ☢ሙ⏕ᡂ ···
ኴ㝧⣔ෆᑠኳయࡢ㉳※ຊᏛ㐍 ···
ᝨᫍẼࡢᑐὶᵓ㐀ࡢẚ㍑ᩘ್ࣔࢹࣜࣥࢢ ···
ࣈࣛࢵࢡ࣮࣍ࣝೃ⿵ኳయࡢ≧ែ㑄⛣㛵ࡍࡿ☢Ẽὶయᩘ್ᐇ㦂 ···
ཎጞᫍࢪ࢙ࢵࢺᫍ࿘┙୰࡛ࡢᝨᫍᙧᡂ㐣⛬ࡢ◊✲ ···
Ᏹᐂึᮇ࠾ࡅࡿኳయࡢᙧᡂ㐣⛬ ···
Ꮫඹྠ⏝(⯟✵ᢏ⾡)
㣕⩧యࡢ✵ຊ࣭ᵓ㐀࣭㣕⾜ຊᏛ㐃ᡂゎᯒ㛵ࡍࡿ◊✲ ···
⯟✵ᶵᮦᩱ㛤Ⓨࡢࡓࡵࡢ࣐ࣝࢳࢫࢣ࣮ࣝ&࣐ࣝࢳࣇࢪࢵࢡࢫࢩ࣑࣮ࣗࣞࢩࣙࣥ ···
148 150 151 153 155 157 159 164 166 168 169 170
172
174 176 178 180 182 184 186 189 191
193 195 197 199 201 203 205 207 211 213 216 218 220
222 224
࠙⏝ᴫせࠚ
1.
ࢩࢫࢸ࣒ᴫせ ···
2.
㞀ᐖⓎ⏕≧ἣ ···
3.
㐠⏝ᴫせ ···
4.
࣮ࣘࢨⓏ㘓≧ἣ ···
5.
࣮ࣘࢨ༊ศู⏝≧ἣ ···
6.
ศ㔝ู⏝ྜ ···
229 231 231 233 234 234
ᡂᯝᴫせ
㻌
◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸⥲ྜᢏ⾡◊✲ᮏ㒊 ሗ࣭ィ⟬ᕤᏛࢭࣥࢱ࣮㸪ఀ⸨Ⰻ୕([email protected])
㻌
ィ⟬ࡢ┠ⓗ㻶㻭㼄㻭䛷㛤Ⓨ䛜㐍䜑䜙䜜䛶䛔䜛㟼⢔㉸㡢㏿ᶵ࿘䜚䛾ὶ䜜ሙ䜢ゎᯒ䛧䠈✵ຊᙎᛶ≉ᛶ䜢᥈䜛䠊㻌
㻌
◊✲ࡢᴫせ⩼⬗㸪ࢼࢭࣝ㸪㢼Ὕࡲ࡛ࢆྵࡵࡓ㠀ᐃᖖゎᯒࢆ⾜࠺ࡇࡼࡗ࡚㸪㟼⢔㉸㡢㏿ᶵࡢ✵ຊᙎᛶ≉ᛶࢆㄪ
ࡿ㸬ࡲࡓ㸪㢼Ὕヨ㦂ࡢẚ㍑ࢆ⾜࠺㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせ⩼⬗㸪ࢼࢭࣝ㸪㢼Ὕࡲ࡛ࢆྵࡵࡓ
RANSᐃᖖゎᯒ㸪ཬࡧ㸪⩼༢యࡢ
Eulerᐃᖖゎᯒ࣭㠀ᐃᖖゎᯒࢆ⾜
ࡗࡓ㸬ὶయゎᯒࡢࢥ࣮ࢻ㸪ィ⟬᱁Ꮚࡣᶵయᵓ㐀ࢢ࣮ࣝࣉࡽᥦ౪ࡉࢀࡓࡶࡢࢆ⏝ࡋࡓ㸬⩼⬗࿘ࡾࡢ᱁ Ꮚලྜࡀ࠶ࡾ㸪⩼⬗㸪ࢼࢭࣝ㸪㢼Ὕ㛵ࡋ࡚ࡣ᭷ព⩏࡞⤖ᯝࡀᚓࡽࢀ࡞ࡗࡓ㸬
ᅗ1 ᶵయ⾲㠃㢼Ὕቨ㠃ࡢCp➼㧗⥺(M=0.9,AoA=0,Re=2e+06)
㟼⢔㉸㡢㏿ᶵ࿘䜚䛾ὶ䜜䛾ゎᯒ㻌
Numerical Simulations of Flow past a Silent Supersonic Aircraft
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ࢪ࢙ࢵࢺ࢚ࣥࢪࣥᢏ⾡◊✲ࢭࣥࢱ࣮㸪ᴮᮏಇ ([email protected])
◊✲ศᢸ⪅㸸◊✲㛤Ⓨᮏ㒊 ࢪ࢙ࢵࢺ࢚ࣥࢪࣥᢏ⾡◊✲ࢭࣥࢱ࣮㸪ᒣᮏ୍⮧
ᰴᘧ♫࢚࣭࢚ࢫ࣭⥲◊㸪ᒣୗᘓᚿ
(ᰴ) IHI㸪⏣୰ᮃ㸪 ᗞⰾ๎㸪▼ ຮ
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ィ⟬ࡢ┠ⓗ⯟✵࢚ࣥࢪࣥࡢࢪ࢙ࢵࢺὶࢀࢆ
Large Eddy Simulation(LES)ࡼࡾ⌧ࡍࡿࡇࡼࡾ㸪⌧㇟ࡢ⌮ゎࢆ῝ࡵࡿࡶ㸪Ⓨ⏕ࡍࡿ㦁㡢ࢆண ࡍࡿᢏ⾡ࢆ㛤Ⓨࡍࡿࡇ㸬
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◊✲ࡢᴫせLarge Eddy Simulation (LES)
ࡼࡿࢪ࢙ࢵࢺ㦁㡢ࡢண ࡣ㏆ᖺᗈࡃ⾜ࢃࢀ࡚࠾ࡾ㸪࣐ࢡࣟࢪ࢙ࢵ
ࢺ࡞ప㦁㡢ࣀࢬࣝࡢຠᯝࢆ
LESࡼࡾホ౯ࡍࡿࡇࡀྍ⬟࡞ࢀࡤ㸪ࡼࡾຠ⋡ⓗ࡞ప㦁㡢ࢹࣂࢫࡢ 㛤Ⓨࡀᮇᚅ࡛ࡁࡿ㸬ࡇࢀࡽࡢప㦁㡢ࣀࢬࣝࡢຠᯝࡣ
1㹼2dB⛬ᗘゝࢃࢀ࡚࠾ࡾ㸪ࡑࡢ㐪࠸ࢆ
LES࡛ᩘ
್ண ࡍࡿࡓࡵ㸪㧗࠸⢭ᗘࡢィ⟬ࡀᚲせ࡛࠶ࡿ㸬ᮏ◊✲࡛ࡣ
UPACS-LESࢆ⏝࠸࡚㸪࣐ࢡࣟࢪ࢙ࢵࢺ ᄇᑕࡼࡾࢪ࢙ࢵࢺ㦁㡢ࡀప㦁㡢ࡍࡿ⌧㇟ࢆ㸪
LESࡼࡾ⌧ࡍࡿࡇࢆヨࡳࡓ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせ࣐ࢡࣟࢪ࢙ࢵࢺᄇᑕࡢ࠶ࡿࢪ࢙ࢵࢺࡢ
LESィ⟬ࢆ⾜ࡗࡓ㸬ィ⟬つᶍࡣ㸪
980ࣀ࣮ࢻ㸪᱁ᏊⅬᩘ
4൨
7600Ⅼ㸪1 ࢣ࣮ࢫ⣙
2㐌㛫㸪
3ࢣ࣮ࢫ࡛࠶ࡗࡓ㸬௨๓⾜ࡗࡓ᱁ᏊⅬᩘ
2800Ⅼࡢィ⟬⤖ᯝẚ
⢭ᗘࡢⰋ࠸ィ⟬⤖ᯝࢆᚓࡿࡇࡀ࡛ࡁࡓ㸬ὶࢀሙ㸪㐲᪉ሙ㦁㡢ࡶࢀࣞ࣋ࣝࡸ㦁㡢ࣞ࣋ࣝࡀ⤯ᑐ್
ࡋ࡚ࡣᐇ㦂࡞ࡾⰋ࠸୍⮴ࢆ♧ࡋ㸪ࡲࡓ࣐ࢡࣟࢪ࢙ࢵࢺࡢ᭷↓ࡼࡿ㦁㡢ࡢኚ㔞ࢆⰋ࠸⢭ᗘ࡛
ண ࡍࡿࡇࡀฟ᮶ࡿࡇࢆ♧ࡋࡓ㸬
ᅗ
1 ࢪ࢙ࢵࢺὶࢀࡢᴫせ࣮࢝ࣛࡢ㒊ศࡣࢪ࢙ࢵࢺࡢ࣐ࢵࣁᩘศᕸ㸪ⓑ㯮ࡢ㒊ศࡣᅽຊኚື(㡢)ࢆ♧ࡋ࡚࠸ࡿ㸬
䝬䜲䜽䝻䝆䜵䝑䝖ᄇᑕ䛻䜘䜛䝆䜵䝑䝖㦁㡢పῶ䛾つᶍ 㻸㻱㻿 ゎᯒ㻌
Large-Eddy Simulation of Jet Noise Reduction with Microjet Injection
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ᅗ
1ὶࢀᆶ┤࡞᩿㠃ࡢ㏿ᗘࢀศᕸࡢᐇ㦂ࡢẚ㍑
ᕥࡣィ⟬ᑐ㇟ࡋࡓ
Castelainࡽࡢᐇ㦂(AIAA 2007-3419)ࡢ
PIVࡢࢹ࣮ࢱ㸪ྑࡣ
LESィ⟬⤖ᯝ㸬
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◊✲ᡂᯝࡢබ⾲≧ἣ1)
㧗ள㡢㏿ࢪ࢙ࢵࢺࡢ࣐ࢡࣟࢪ࢙ࢵࢺᄇᑕࡼࡿప㦁㡢ࡢつᶍLESゎᯒ㸪᪥ᮏὶయຊᏛ ➨24ᅇ
ᩘ್ὶయຊᏛࢩ࣏ࣥࢪ࣒࢘㸪2010ᖺ12᭶20᪥(᭶) - 22᪥(Ỉ)
2)
࣐ࢡࣟࢪ࢙ࢵࢺᄇᑕࡼࡿࢪ࢙ࢵࢺ㦁㡢పῶࡢLESゎᯒ㸪᪥ᮏ⯟✵ᏱᐂᏛ ➨51ᅇ⯟✵ཎືᶵ࣭
Ᏹᐂ᥎㐍ㅮ₇㸪2011ᖺ3᭶3᪥(ᮌ) - 4᪥(㔠)
3) Large-Eddy Simulation of High-Subsonic Jet Flow with Microjet Injection㸪 17th AIAA/CEAS Aeroacoustics Conference㸪 6-8 June 2011 㸪 AIAA 2011-2883
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ࢪ࢙ࢵࢺ࢚ࣥࢪࣥᢏ⾡◊✲ࢭࣥࢱ࣮㸪ᴮᮏಇ([email protected])
◊✲ศᢸ⪅㸸ᰴᘧ♫
IHI⯟✵Ᏹᐂᴗᮏ㒊 ᢏ⾡㛤Ⓨࢭࣥࢱ࣮ せ⣲ᢏ⾡㒊㸪
⏣୰ ᮃ([email protected])
ᗞⰾ๎([email protected])
▼ ຮ([email protected])
◊✲㛤Ⓨᮏ㒊 ࢪ࢙ࢵࢺ࢚ࣥࢪࣥᢏ⾡◊✲ࢭࣥࢱ࣮㸪㔝ᓮ ⌮([email protected])
◊✲㛤Ⓨᮏ㒊 ࢪ࢙ࢵࢺ࢚ࣥࢪࣥᢏ⾡◊✲ࢭࣥࢱ࣮㸪ᒣᮏ୍⮧([email protected])
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ィ⟬ࡢ┠ⓗ⯟✵࢚ࣥࢪࣥ⏝Ẽࢪ࢙ࢵࢺࣀࢬࣝࡣప㦁㡢ࡢࡓࡵ」㞧࡞ᙧ≧ࡀ⏝࠸ࡽࢀࡿࡼ࠺࡞ࡗ࡚ࡁ࡚࠾
ࡾ㸪ࡑࡢ㦁㡢ࣞ࣋ࣝࡸὶࢀሙࢆCFDࡼࡾண ࡛ࡁࡿࡼ࠺࡞ࡿࡇࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡑࡇ࡛㸪」㞧 ᙧ≧㐺ᛂ࡛ࡁࡿCFDࢥ࣮ࢻUPACSࢆᨵ㐀ࡋ㧗ḟ⢭ᗘࢫ࣮࣒࢟ࢆᑟධࡋࡓUPACS-LESࢆ㛤Ⓨࡋ㸪 ࢪ࢙
ࢵࢺ㦁㡢ࢆண ࡍࡿヨࡳࢆ⾜ࡗ࡚࠸ࡿ㸬ᑐ㇟ࡍࡿ࡞ὶࢀሙࡣ㸪᳨ドࢹ࣮ࢱࡢከ࠸ள㡢㏿㸪㉸㡢㏿ࡢ
ᙧࢪ࢙ࢵࢺ࡛㸪LESゎᯒཬࡧ㐲᪉ሙ㦁㡢ゎᯒࢆ⾜࠸㸪Turbulent Mixing Noise㸪࣐ࢵࣁἼࡼࡿࣀ
ࢬ㸪Broadband Shock-Associated Noise࡞ࢆ⢭ᗘⰋࡃண ࡛ࡁࡿࡼ࠺ࡍࡿࡇࢆ┠ᶆࡋ࡚࠸ࡿ㸬
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◊✲ࡢᴫせࢪ࢙ࢵࢺ㦁㡢పῶ⏝⌧ᅾᥦࡉࢀ࡚࠸ࡿࢹࣂࢫࡘ࠸࡚ࡑࡢὶࢀሙࡢ≉ᚩࢆᥗࡴࡓࡵࡢゎᯒࢆ
యࡋ࡚ᐇࡋ࡚࠾ࡾ㸪⦪ ᵓ㐀࣭ὶ⤫ィ㔞࡞ࢆホ౯ࡍࡿ࡛㦁㡢పῶᐤࡍࡿࣃ࣓࣮ࣛࢱ㛵 ࡋ࡚ㄪᰝࢆᐇࡋ࡚࠸ࡿ㸬ࡲࡓ㸪㡢㡪ゎᯒࡢ┦㛵㸪ᐇ㦂⤖ᯝࡢ┦㛵ࢆᚓࡿࡼࡾ㸪⢭ᗘࡢ㧗࠸㦁 㡢ண ࢶ࣮ࣝࡢ㛤Ⓨࡶ⾜ࡗ࡚ࡁࡓ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせᮏᖺᗘࡢᡂᯝࢆ௨ୗ♧ࡍ㸬
ࢥࢽ࢝ࣝࣀࢬࣝ㸪ࣀࢵࢳࣀࢬࣝ㸪ࢩ࢙ࣈࣟࣥࣀࢬࣝ㸪࣐ࢡࣟࢪ࢙ࢵࢺᄇᑕ᮲௳࡞ࡢὶࢀሙゎᯒࢆ
ᐇ࣭ホ౯
SST⏝࢚ࣥࢪࣥࣔࢹࣝつᶍゎᯒࡢᐇ࣭ホ౯
㦁㡢ヨ㦂ඛ❧ࡕ㸪ప㦁㡢ࢹࣂࢫࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࡼࡾ࣐ࢡࣟࢪ࢙ࢵࢺࣀࢬࣝ㸪ࢩ࢙ࣈࣟ
ࣥࣀࢬࣝ㸪ࣀࢵࢳࣀࢬࣝࡘ࠸࡚▱ぢࡀᚓࡽࢀࡓ㸬
࣭ ྛ࣑࢟ࢩࣥࢢࢹࣂࢫࡀࣀࢬࣝฟཱྀ㏆ഐሙ࠾࠸࡚ࡑࢀࡒࢀࡁࡃ␗࡞ࡿ ᵓ㐀ࢆᣢࡗࡓὶࢀሙࢆ
ㄏ㉳ࡋ࡚࠸ࡿᵝᏊࢆLES࡛ᤕࡽ࠼ࡿࡀ࡛ࡁࡓ㸬
࣭ ࢩ࢙ࣈࣟࣥࡣ㇂㒊ࡽᅇ㌿᪉ྥࡀᑐ࡞ࡗࡓ⦪ ࢆ⏕ࡌ㸪ΰྜࢆಁ㐍
࣭ ࣀࢵࢳࣀࢬࣝࡣ⣽࡛ከᩘࡢ ᵓ㐀ࢆ⏕ࡌࡿ
࣭ ࣐ࢡࣟࢪ࢙ࢵࢺࡣࣥࣆࣥࢪ㠃࠾࠸࡚ࢪ࢙ࢵࢺෆ㒊⦪ ᵓ㐀
࣭ ࡑࢀࡒࢀࡢࢹࣂࢫࡣࡏࢇ᩿ᒙࢆྠࡌࡼ࠺ኚᙧࡉࡏࡿࡀ࡛ࡁࡿࡀ㸪⦪ ᵓ㐀ࡀຍ㦁㡢ᐦ᥋
࡞㛵ಀࢆᣢࡗ࡚࠸ࡿࡓࡵ㸪ࣀࢬࣝฟཱྀ㏆ഐࡢὶࢀሙࢆㄪᰝࡍࡿ࡛ຍ㦁㡢※࡞ࡾᚓࡿ ᵓ㐀ࡢ
䝆䜵䝑䝖㦁㡢పῶ⏝䝕䝞䜲䝇䛾䠨䠡䠯ゎᯒ㻌
The analysis of the devices for jet noise reduction by Large Eddy Simulation
㐣ᗘࡢὶ㐠ື࢚ࢿࣝࢠ࣭ࣞࣀࣝࢬᛂຊࢆ⏕ࡌࡓ࣑࢟ࢩࣥࢢࡣ㧗࿘Ἴᩘ㦁㡢ࡢቑຍᐤࡋ㸪㦁㡢 పῶຠᯝࢺ࣮ࣞࢻ࢜ࣇ࡞ࡿࡓࡵ㸪ὶࢀሙࡢ ᵓ㐀ࢆ⌮ゎࡋࡓ㦁㡢పῶࢹࣂࢫࡢ㛤Ⓨࢆ⥅⥆ࡋ࡚⾜
ࡗ࡚࠸ࡃ㸬
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ᅗ2 ྛ㦁㡢పῶࢹࣂࢫࡢὶࢀሙᵓ㐀ࡢ㐪࠸
➼್㠃㸸࣐ࢵࣁᩘ㸻0.4㸪ࢥࣥࢱ㸸ࣞࣀࣝࢬᛂຊ 㸸㹏್㸩↓ḟඖ࣊ࣜࢩࢸ
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◊✲ᡂᯝࡢබ⾲≧ἣᰝㄞㄽᩥ
1) GTSJ2010/10᭶㸾ᚨᓥ㸪
͆Large Eddy Simulationࢆ⏝࠸ࡓࢪ࢙ࢵࢺ㦁㡢పῶࢹࣂࢫࡢホ౯͇ 㸪ᢏ⾡
ㄽᩥ
2) GTSJᏛㄅ2011/3᭶ྕㄽㄝ࣭ゎㄝ͆⇕ὶయࡢ㠀ᐃᖖ⌧㇟͇
3) ASME2011/6᭶㸾ࣂࣥࢡ࣮ࣂ࣮ “Experimental and Computational Approach for Jet Noise Mitigation by Mixing Control Devices”㸪 GT2011-45200
ཱྀ㢌Ⓨ⾲
4) ANSS2010/6᭶㸾⡿Ꮚ͆ࢪ࢙ࢵࢺ㦁㡢పῶࢹࣂࢫࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࡼࡿ◊✲͇
5) GTSJ2010/10᭶㸾ᚨᓥ͆Large Eddy Simulationࢆ⏝࠸ࡓࢪ࢙ࢵࢺ㦁㡢పῶࢹࣂࢫࡢホ౯͇
Chevron 18
Conical / micro-jet NotchS-3
Conical
Reynolds stress contours on the mach 0.4 iso-surface
x/D=0.0 x/D=0.4 x/D=0.8
x/D=1.2 x/D=1.6 x/D=2.0
Vortex structures
Source of the noise
Base-Conical Nozzle
Source of the noise
Vortex structures
Micro-jet blow (rm3)
Reynolds stress contours on the mach 0.4 iso-surface
x/D=0.0 x/D=0.4 x/D=0.8
x/D=1.2 x/D=1.6 x/D=2.0
Micro-jet
Source of the noise
Vortex structures
Chevron 18
Reynolds stress contours on the mach 0.4 iso-surface
x/D=0.0 x/D=0.4 x/D=0.8
x/D=1.2 x/D=1.6 x/D=2.0
Chevron 18 Nozzle
Source of the noise
Vortex structures
notchS-3
Reynolds stress contours on the mach 0.4 iso-surface
x/D=0.0 x/D=0.4 x/D=0.8
x/D=1.2 x/D=1.6 x/D=2.0
Notch S-3 Nozzle
Source of the noise
Vortex structures
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ࢪ࢙ࢵࢺ࢚ࣥࢪࣥᢏ⾡◊✲ࢭࣥࢱ࣮ ࢚ࣥࢪࣥᛶ⬟ゎᯒࢭࢡࢩࣙࣥ㸪
㈡⃝㡰୍([email protected])
◊✲ศᢸ⪅㸸ASI ⥲◊㸪ᇼཱྀὈ⏕
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ィ⟬ࡢ┠ⓗࣇࣥ㦁㡢※࡞ࡿࣇࣥ࿘ᅖࡢ㠀ᐃᖖὶࢆ㠀ᐃᖖࣞࣀࣝࢬᖹᆒNavier-Stokes᪉⛬ᘧ㸦URANS㸧
࡛ィ⟬ࡍࡿ㦁㡢ゎᯒࡢᡭἲࡣ㸪⢭ᗘಙ㢗ᛶ㛵ࡋ࡚ࡣ◊✲ẁ㝵࠶ࡿ㸬ᮏィ⟬࡛ࡣURANSࢆ⏝࠸࡚
ࣇࣥື㟼⩼ᖸ΅ィ⟬ࡼࡿ㡢ἼࡢⓎ⏕࣭ఏࢆィ⟬ࡋ㸪ࡑࡢྍ⬟ᛶㄢ㢟ࢆ᫂ࡽࡋࡓ࠺࠼࡛㸪ື
㟼⩼ิᖸ΅ࡼࡿࣇࣥ㦁㡢ࡢࣇࣥ࿘ᅖ࡛ࡢ㡢ሙࢆヲ⣽ゎᯒࡍࡿ㸬ࡑࡢୖ࡛㸪⥺ᙧ࣮࢜ࣛ᪉⛬ᘧ 㸦LEE㸧ࡸ✚ศ᪉⛬ᘧ➼ࢆ⏝࠸࡚ࣇࣥ㦁㡢ࡢࢲࢡࢺෆఏࡸ㐲᪉ሙࡢᨺᑕண ࢆྍ⬟ࡋ㸪ࣇࣥ
㦁㡢ண ࢶ࣮ࣝࢆసᡂࡍࡿ㸬
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◊✲ࡢᴫせCFDࡼࡗ࡚㡢ἼࡢⓎ⏕ࡸఏࢆᶍᨃࡍࡿࡓࡵ㸪᱁Ꮚᐦᗘࡸィ⟬ࢥ࣮ࢻࡢ✵㛫⢭ᗘ➼ࢆ᳨ウࡍࡿ㸬
ࡑࡢୖ࡛㸪CFDࡼࡿࣇࣥ㦁㡢ண ࡢࡓࡵࡢㄢ㢟ࡸྍ⬟ᛶࢆ᫂ࡽࡋ㸪ᐇᶵ㐺⏝ྍ⬟࡞ࣇࣥ㦁 㡢ࡢ㧗⢭ᗘண ࢶ࣮ࣝࢆ㛤Ⓨࡍࡿ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせゎᯒᑐ㇟ࢆኚ᭦ࡋ㸪ࡼࡾヲ⣽࡞ヨ㦂ࢹ࣮ࢱࡢ࠶ࡿࡶࡢࡋࡓ㸬ィ⟬⤖ᯝヨ㦂⤖ᯝࡢẚ㍑ࡽ㸪ண ㄗᕪࡣ࡛᭱ࡶ
10dB௨ୗ࡞ࡗࡓ㸬
ͤࡇࡢ◊✲ࡣᰴᘧ♫IHIඹྠ࡛⾜ࡗ࡚࠾ࡾࡲࡍ㸬
䝣䜯䞁㠀ᐃᖖὶ䜜ゎᯒ㻌
Numerical Analysis of Unsteady Flow around Fans
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ㉸㡢㏿ᶵࢳ࣮࣒㸪㒌 ᮾ₶([email protected])
◊✲ศᢸ⪅㸸ᰴᘧ♫⳻ࢩࢫࢸ࣒ࢬ㸪ᖹၨ([email protected])
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ィ⟬ࡢ┠ⓗつᶍ㞳 ὶࢀࢆక࠺㉸㡢㏿ᶵᙧែࡢప㏿㧗㏄ゅ✵ຊ≉ᛶ࠾ࡅࡿࣞࣀࣝࢬᩘຠᯝࢆ⌮ゎࡋ㸪㧗
⢭ᗘ᥎⟬ᡭἲࢆ☜❧ࡍࡿࡇࢆ┠ⓗࡍࡿ㸬
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◊✲ࡢᴫせ⩼⬗య࡛ᵓᡂࡉࢀࡿ༢⣧࡞㉸㡢㏿ᶵᙧ≧࠾࠸࡚JAXA ㉸㡢㏿ᶵࢳ࣮࣒࡛㛤Ⓨࡋࡓ
ADCSࢯࣝࣂ࣮
ࢆ⏝࠸࡚ゎᯒࢆ⾜ࡗࡓ㸬๓⦕ࣇࣛࢵࣉࢆ᧯⯦ࡋࡓ㞳㝣ᙧែࡢప㏿㧗㏄ゅὶࢀሙ࠾࠸࡚᱁Ꮚ౫Ꮡᛶࡸ
ὶࣔࢹࣝࡢᙳ㡪ࢆㄪࡿࡶ㸪ᐇ㣕⾜ࡸ㢼Ὕヨ㦂᮲௳ࢆᐃࡋࡓࣞࣀࣝࢬᩘ⠊ᅖ࠾࠸࡚ࣞࣀ
ࣝࢬᩘຠᯝࢆ⌮ゎࡋ㸪ⓗ☜࡞᥎⟬ྲྀࡾ⤌ࡴ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせ㉸㡢㏿ᶵᙧែࡢప㏿㧗㏄ゅὶࢀሙࡣ㞳 ࡢᙧᡂ࠾࠸࡚ࣞࣀࣝࢬᩘຠᯝࡀ㢧ⴭ࡛࠶ࡿࡇࡀ♧ࡉ
ࢀࡓ㸬⩼㠃࠾࠸࡚╔ὶࢀࡀᨭ㓄ࡍࡿሙྜ࡛ࡣࣞࣀࣝࢬᩘࡼࡾᦶ᧿ᢠࡢኚࡀ࡛࠶ࡿ㸬ࡋ
ࡋ㸪๓⦕ࡽὶࢀ㞳ࡍࡿࡼ࠺࡞㏄ゅ࡛ࡣ๓⦕㞳 ࡢᙧᡂࡀࣞࣀࣝࢬᩘᙉࡃ౫Ꮡࡋ㸪ᅽຊᢠ
ࢆࡁࡃኚࡉࡏ࡚࠸ࡿ㸬ࡲࡓ㸪ᮏ◊✲࠾ࡅࡿᩘ್ゎᯒᡭἲࡢ᱁Ꮚ౫Ꮡᛶࡸὶࣔࢹࣝࡢឤᗘࢆᢕᥱ ࡋ㸪ᚋࡢ᥎⟬ᡭἲࡢ☜❧ࡢ㈗㔜࡞ཧ⪃ࢹ࣮ࢱࢆྲྀᚓࡋࡓ㸬
㉸㡢㏿ᶵᙧែ䛾ప㏿㧗㏄ゅ㣕⾜䛾䝺䜲䝜䝹䝈ᩘຠᯝ㻌
Reynolds number Effects for High Alpha Aerodynamics on SST Configuration
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪ᶫᮏ ᩔ([email protected])
◊✲ศᢸ⪅㸸◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪ᮧୖ᱇୍([email protected])
◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪▼ྥ᱇୍([email protected])
◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪㟷ᒣ๛ྐ([email protected])
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ィ⟬ࡢ┠ⓗࢹࢪࢱࣝ/ࢼࣟࢢ࣭ࣁࣈࣜࢵࢻ㢼Ὕࢩࢫࢸ࣒ࡢᵓ⠏ࢆ┠ᣦࡋ࡚㸪⮬ື᱁Ꮚ⏕ᡂ(HexaGrid)㐃ᦠࡋ ࡓ㧗㏿࡞ὶయゎᯒࢯࣝࣂ(FaSTAR: FAST Aerodynamic Routines)ࡢ㛤Ⓨࢆ⾜࠺㸬㑄㡢㏿㢼Ὕ࡛⾜ࢃࢀࡿ
࠶ࡽࡺࡿヨ㦂ᑐࡍࡿCFDゎᯒࢆ⾜࠺ࡓࡵ㸪」㞧ᙧ≧ᑐᛂྍ⬟࡞㠀ᵓ㐀᱁Ꮚࢆ⏝࠸ࡓゎᯒࢥ࣮ࢻࢆ㛤
Ⓨࡍࡿ㸬ゎᯒ㛫ࡣ1000Ⅼࡢ᱁Ꮚᑐࡋ࡚㸪1㛫/1ࢣ࣮ࢫࢆ┠ᶆࡋ࡚࠸ࡿ㸬
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◊✲ࡢᴫせFaSTARࡢィ⟬㏿ᗘྥୖ㸪Ᏻᐃᛶཬࡧ⢭ᗘࡢྥୖࢆࡍࡿࡓࡵ㸪ࣉࣟࢢ࣒ࣛࢳ࣮ࣗࢽࣥࢢࡸィ⟬ࣝࢦ
ࣜࢬ࣒ࡢᨵⰋࢆ⾜࠸㸪᳨ドゎᯒࢆᐇࡍࡿ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせᮏᖺᗘࡢ࡞ᡂᯝࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿ㸬
࣭᮰ຍ㏿ἲ㸦GMRESMultigrid㸧ࡢᑟධ
࣭Ᏻᐃᛶࡢྥୖ㸦ィ⟬ึᮇࡢᏳᐃᛶྥୖ㸧
࣭⢭ᗘࡢྥୖ㸦ෆᤄ᪉ἲࡢᨵⰋ㸪ࢭࣝ⠇Ⅼἲࡢᑟධ㸧
࣭ᶍᆺኚᙧࢆ⪃៖ࡍࡿࡓࡵࡢ✵㛫᱁Ꮚኚᙧᶵ⬟ࡢᑟධ
᳨࣭ドゎᯒ㸦DLR-F6㸪 NASA-CRM࡞㸧
Multigrid⏝⮬ື⏕ᡂࡋࡓ⢒࠸᱁Ꮚࢆᅗ1♧ࡍ㸬ࡲࡓ㸪ᅗ2Multigridἲࢆ⏝ࡋࡓሙྜࡋ࡞࠸
ሙྜࡢẚ㍑ࢆ♧ࡍ㸬Multigridἲࢆ⏝ࡍࡿࡇ࡛㸪⣙4ಸィ⟬㏿ᗘࡀྥୖࡋ࡚࠸ࡿࡇࡀࢃࡗࡓ㸬
㧗㏿ὶయゎᯒ䝋䝹䝞 㻲㼍㻿㼀㻭㻾 䛾㛤Ⓨ㻌
Development of Fast Flow Solver “FaSTAR”
ᅗ
2ᢠಀᩘ
CDࡢ᮰ᒚṔ
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◊✲ᡂᯝࡢබ⾲≧ἣ1)
ᶫᮏ ᩔ㸪ᮧୖ᱇୍㸪㟷ᒣ๛ྐ㸪⳻⏣ Ꮫ㸪㔝┿ྖ㸪ᆏୗ㞞⚽㸪ࣛࣇ࣮ࣝࣃ࢘ࣝࢫ㸪బ⸨ᖾ⏨㸪 ͆㧗㏿
ὶయࢯࣝࣂ
FaSTARࡢ㛤Ⓨ㸪 ͇➨
42ᅇὶయຊᏛㅮ₇㸭⯟✵Ᏹᐂᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥᢏ⾡ࢩ࣏ࣥࢪ
࣒࢘
2010㸬2)
⳻⏣ Ꮫ㸪ᶫᮏ ᩔ㸪ᮧୖ᱇୍㸪㟷ᒣ๛ྐ㸪 ͆㠀ᵓ㐀㧗㏿ὶయࢯࣝࣂ
FaSTAR࠾ࡅࡿ໙㓄ไ㝈㛵ᩘ㸪 ͇ ➨
42ᅇὶయຊᏛㅮ₇㸭⯟✵Ᏹᐂᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥᢏ⾡ࢩ࣏ࣥࢪ࣒࢘
2010㸬3)
ᆏୗ㞞⚽㸪ᯇᑿ⿱୍㸪ᶫᮏ ᩔ㸪㟷ᒣ๛ྐ㸪 ͆LU-SGS ྑ๓ฎ⌮ࡁ
GMRESἲࡢ㧗㏿ὶయࢯࣝࣂ㸪 ͇
➨
42ᅇὶయຊᏛㅮ₇㸭⯟✵Ᏹᐂᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥᢏ⾡ࢩ࣏ࣥࢪ࣒࢘
2010㸬4)
㟷ᒣ๛ྐ㸪ᶫᮏ ᩔ㸪ᮧୖ᱇୍㸪ࣃ࢘ࣝࢫ࣭ࣛࣇ࣮ࣝ㸪⳻⏣ Ꮫ㸪ᅜᯞ ᫂㸪 ࣮͆࣡ࢡࣇ࣮ࣟࢩࢫࢸ࣒⮬
ື᱁Ꮚ⏕ᡂ㸭㧗㏿
CFDࢯࣝࣂࢆ⤌ࡳྜࢃࡏࡓࢹࢪࢱࣝ㢼Ὕࡢ㛤Ⓨ㸪 ͇➨
42ᅇὶయຊᏛㅮ₇㸭⯟✵Ᏹ ᐂᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥᢏ⾡ࢩ࣏ࣥࢪ࣒࢘
2010㸬0.0150 0.0155 0.0160 0.0165 0.0170
0 500 1000 1500 2000 2500 3000 3500 4000
CD
CPUtime
ᨵⰋ๓ ᨵⰋᚋ
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪ᶫᮏ ᩔ ([email protected])
◊✲ศᢸ⪅㸸◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪ᮧୖ᱇୍ ([email protected])
◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪▼ྥ᱇୍ ([email protected])
◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪㟷ᒣ๛ྐ ([email protected])
(ᰴ)ィ⟬ຊᏛ◊✲ࢭࣥࢱ࣮㸪ࣛࣇ࣮ࣝ ࣃ࢘ࣝࢫ ([email protected])
(ᰴ)ィ⟬ຊᏛ◊✲ࢭࣥࢱ࣮㸪㛗ᑿబᕷ([email protected])
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ィ⟬ࡢ┠ⓗ㏻ᖖ㸪᱁Ꮚ⏕ᡂࡣᡭసᴗࡀධࡍࡿࡓࡵ㸪ከ࡞㛫ࡀᚲせ࡞ࡿ㸬ᮏࢢ࣮ࣝࣉ࡛ࡣ㸪ࡇࢀࡲ࡛㸪᱁ Ꮚ⏕ᡂ㛫ࢆ▷⦰ࡍࡿࡓࡵ㸪┤᱁Ꮚࢆ⏝ࡋࡓ㧗㏿࡞⮬ື᱁Ꮚ⏕ᡂࢯࣇࢺ
(HexaGrid)ࡢ㛤Ⓨࢆ⾜ࡗ࡚ࡁࡓ㸬
HexaGridࢆ⏝࠸࡚㸪⯟✵ᶵࡢᥭຊࡸᢠ࡞ࡢ✵Ẽຊࡢண ࢆ࡛ࡁࡿࡼ࠺ࡍࡿࡇࡀ┠ⓗ࡛࠶ࡿ㸬
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◊✲ࡢᴫせ⮬ື᱁Ꮚ⏕ᡂࢯࣇࢺHexaGridࢆ⏝࠸࡚㸪4
th AIAA CFD Drag Prediction Workshop(DPW4)ࡢㄢ㢟࡛࠶ࡿNASA-Common Research Model (NASA-CRM)ࡢ᱁Ꮚࢆ⮬ື⏕ᡂࡋ࡚㸪ண ⢭ᗘࡢ᳨ドࢆ⾜ࡗࡓ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせ㞳ࡀࡁࡃ࡞ࡿ㏄ゅ4rࡢࢣ࣮ࢫᑐࡋ࡚㸪୍㒊ࡢ✵㛫⣽࠸᱁Ꮚࢆ⏕ᡂࡍࡿࡇࡀ࡛ࡁࡿᶵ⬟
㸦Refinement Boxᶵ⬟㸧ࢆ⏝ࡋ࡚ゎᯒࢆ⾜ࡗࡓ㸬ᅗ1⏕ᡂࡋࡓ᱁Ꮚࢆ♧ࡍ㸬⩼ࡢᚋ᪉࡛᱁Ꮚࡀ⣽
ࡃ࡞ࡗ࡚࠸ࡿ㸬㏻ᖖࡢ᱁Ꮚ࡛ࡣ㸪ᚋὶࡀ࡞ࡲࡗ࡚ࡋࡲ࠸ཌࡃ࡞ࡿࡀ㸪
Refinement Boxࢆ⏝ࡋࡓ᱁Ꮚ࡛ࡣ㸪ᚋὶࡸ⩼➃ ࢆࢩ࣮ࣕࣉᤊ࠼ࡿࡇࡀྍ⬟࡛࠶ࡿࡇࡀࢃࡗࡓ㸦ᅗ2㸧 㸬ࡇࡢᡭἲࡣ㸪ᚋὶࡀ ᑿ⩼ᖸ΅ࡍࡿၥ㢟᭷ຠ࡛࠶ࡿ㸬
භ㠃య⮬ື᱁Ꮚ⏕ᡂ䝋䝣䝖 㻴㼑㼤㼍㻳㼞㼕㼐 䛾㛤Ⓨ㻌
Development of Hexahedra Automatic Grid Generator “HexaGrid”
ᅗ
2 ᚋὶࡢィ⟬⤖ᯝ㸦⥲ᅽศᕸ㸧㻌
◊✲ᡂᯝࡢබ⾲≧ἣ ᰝㄞ࡞ࡋㄽᩥ1) A. Hashimoto㸪 K. Ishiko and T. Aoyama㸪 P. Lahur㸪 K. Murakami㸪 “Validation of Fully Automatic Grid Generation Method on Aircraft Drag Prediction㸪” AIAA paper 2010-4669 (2010)
ཱྀ㢌Ⓨ⾲
2) Paulus R. Lahur㸪 Atsushi Hashimoto㸪 Keiichi Murakami㸪 Takashi Aoyama㸪 “AUTOMATIC GRID GENERATION FOR ACCURATE NAVIER-STOKES SIMULATIONS㸪” ICAS 2010㸪 Nice㸪 Frace
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪ᶫᮏ ᩔ ([email protected])
◊✲ศᢸ⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ᅜ⏘᪑ᐈᶵࢳ࣮࣒㸪ᒣᮏ୍⮧㸦[email protected]㸧
⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ᅜ⏘᪑ᐈᶵࢳ࣮࣒㸪ᮧᒣගᏹ㸦[email protected]㸧
(ᰴ)⳻ࢩࢫࢸ࣒ࢬ㸪⏣୰ኴ㑻㸦[email protected]㸧
(ᰴ)
⳻ࢩࢫࢸ࣒ࢬ㸪ᖹ ு㸦[email protected]㸧 㢼Ὕᢏ⾡㛤Ⓨࢭࣥࢱ࣮㸪㡲㇂グ([email protected]) 㢼Ὕᢏ⾡㛤Ⓨࢭࣥࢱ࣮㸪㤶すᨻᏕ([email protected]) 㢼Ὕᢏ⾡㛤Ⓨࢭࣥࢱ࣮㸪ୖ㔝 ┿([email protected])
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ィ⟬ࡢ┠ⓗ㢼Ὕࢆ⏝࠸ࡓ⯟✵ᶵࡢ✵Ẽຊィ ࡛ࡣ㸪㢼Ὕቨࡸᨭᣢ⨨ࡼࡿ✵ຊᖸ΅ࢆྲྀࡾ㝖ࡃࡓࡵ㸪ィ ࡋ ࡓࢹ࣮ࢱࢆ⿵ṇࡍࡿ㸬ࡇࢀࡲ࡛㸪ࣃࢿࣝἲࡸቨᅽຊศᕸࢆ⏝ࡋࡓቨᖸ΅⿵ṇἲ㸪ᶍᆺ⨨࡛ࡢᅽຊ ໙㓄ᇶ࡙࠸ࡓᨭᣢᖸ΅⿵ṇἲࡀᥦࡉࢀ࡚࠸ࡿ㸬ࡋࡋ㸪Ẹ㛫ᶵࡢ㛤Ⓨ࡛ࡣ⇞㈝ᛶ⬟ࡢホ౯ࡢࡓࡵ㸪
ᢠ್㛵ࡋ࡚
1㸣௨ୗࡢ㧗࠸⢭ᗘࡀᚲせࡉࢀ㸪ࡉࡽ㧗⢭ᗘ࡞⿵ṇἲࡀᚲせࡉࢀ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪㢼Ὕෆ㒊ࡢὶࢀሙࡸᖸ΅ࢆ⌮ゎࡋ㸪⿵ṇἲࡢᨵⰋࡸ᪂ࡓ࡞ᡭἲࡢᥦࡘ࡞ࡆࡿࡇࢆ┠ⓗࡋ
࡚࠸ࡿ㸬
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◊✲ࡢᴫせJAXA
ࡀᡤ᭷ࡍࡿ
2m2m㑄㡢㏿㢼Ὕᑐࡋ࡚㸪ྍ⬟࡞㝈ࡾ㢼Ὕࡢᙧ≧ཬࡧᨭᣢ⨨ࢆᛅᐇ⌧ࡋ ィ⟬ࢆ⾜࠺㸬ࡓࡔࡋ㸪ࢸࢫࢺࢭࢡࢩࣙࣥࡢቨࡣከᏍቨ࡞ࡗ࡚࠾ࡾ㸪ࡇࡢቨࡢࣔࢹࣝࡀࡁ࡞ㄢ㢟
࡞ࡿ㸬ᮏィ⟬࡛ࡣ㸪JAXA 㑄㡢㏿㢼Ὕࡢ᮲௳ࢆᶍᨃࡋࡓ༢⊂Ꮝὶࢀࡢゎᯒࢆᐇࡋ㸪᪂ࡓᵓ⠏ࡋࡓከ Ꮝቨࣔࢹࣝࢆ⏝࠸ࡓ㸬ィ⟬ᐇ㦂ࡢẚ㍑ࢆ⾜࠸㸪ᚓࡽࢀࡓィ⟬⤖ᯝࢆ⏝࠸࡚㸪ቨᖸ΅ཬࡧᨭᣢᖸ΅ࡢ⌧
㇟ࡘ࠸࡚⪃ᐹࡍࡿ
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせቨᖸ΅ࡸᨭᣢᖸ΅ࡢ⌧㇟ᢕᥱࢆࡍࡿࡓࡵ㸪㢼Ὕయࢆྵࡵࡓ
ONERA-M5ࡢゎᯒࢆ⾜ࡗࡓ㸦ᅗ
1㸧㸬᪂ ࡋࡃ㛤ⓎࡋࡓከᏍቨࣔࢹࣝࢆ⏝ࡍࡿࡇ࡛㸪ᐇ㦂ࡰྠࡌቨ㠃ᅽຊศᕸࢆ⌧ࡍࡿࡇࡀ࡛ࡁࡓ㸬 ࡇࢀࡼࡾ㸪᥇⏝ࡋࡓィ⟬ᡭἲཬࡧከᏍቨࣔࢹࣝࡀጇᙜ࡛࠶ࡿࡇࢆ☜ㄆ࡛ࡁࡓ㸬ࡲࡓ㸪㢼Ὕቨࢆ㏻㐣 ࡍࡿὶࢀࡘ࠸࡚ࡶ▱ぢࢆᚓࡿࡇࡀ࡛ࡁࡓ㸦ᅗ
2㸧㸬 C
L
CDᑐࡍࡿቨࡸᨭᣢࡢᙳ㡪ࡘ࠸࡚ࡶ⪃
ᐹࢆ⾜ࡗࡓ㸬
ONERA-M5࡛ࡣ㸪ቨࡼࡾࡶᨭᣢࡢ᪉ࡀయⓗᙳ㡪ࡀࡁ࠸㸬ᨭᣢ⨨ࡼࡾ
CDࡣῶᑡ ࡍࡿࡀ㸦ᾋຊຠᯝ㸧 㸪ቨࡢᙳ㡪࡛
CDࡣୖ᪼ࡍࡿ㸬ຍ࠼࡚㸪ᨭᣢࡢᙳ㡪ࡣᶍᆺయཬࢇ࡛࠸ࡿࡀ㸪ቨࡢ ᙳ㡪ࡣ⩼࡛᭱ࡶࡁࡃ⾲ࢀ࡚࠸ࡿࡇࡶࢃࡗࡓ㸬
ከᏍቨ䝰䝕䝹䜢⏝䛔䛯㑄㡢㏿㢼Ὕ䛾ቨᨭᣢᖸ΅ゎᯒ㻌
Analysis of Wall and Support interferences in Transonic Wind Tunnel
ᅗ
1 㑄㡢㏿㢼Ὕෆࡢᅽຊศᕸᅗ
2 ከᏍቨࢆ㏻㐣ࡍࡿὶࢀ㻌
◊✲ᡂᯝࡢබ⾲≧ἣ ᰝㄞ࡞ࡋㄽᩥ1) Hashimoto㸪 T. Aoyama㸪 M. Kohzai㸪 and K. Yamamoto㸪” Transonic Wind Tunnel Simulation with Porous Wall and Support Devices㸪” AIAA paper 2010-420
ཱྀ㢌Ⓨ⾲
2)
ᶫᮏ ᩔ㸪㤶すᨻᏕ㸪⏣୰ኴ㑻㸪㟷ᒣ๛ྐ㸪⸨㔝ᩔᚿ㸪 ͆㑄㡢㏿㢼Ὕࡢቨᨭᣢᖸ΅ゎᯒ㸪 ͇➨24ᅇᩘ್
ὶయຊᏛࢩ࣏ࣥࢪ࣒࢘(2010)
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪ᶫᮏ ᩔ([email protected])
◊✲ศᢸ⪅㸸᪩✄⏣Ꮫ㸪༡㒊ኴ([email protected])
᪩✄⏣Ꮫ㸪బ⸨ဴஓ([email protected])
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ィ⟬ࡢ┠ⓗ㢼Ὕෆὶࢀሙゎᯒࡢࡓࡵ㸪㢼Ὕࢸࢫࢺࢭࢡࢩࣙࣥ࠾ࡅࡿከᏍቨࡢᙳ㡪ࢆᶍᨃ࡛ࡁࡿࣔࢹࣝࡢ㛤Ⓨ
ࢆ⾜ࡗࡓ㸬᪤ᏑࡢከᏍቨࣔࢹࣝࡣᗄࡘᏑᅾࡍࡿࡀ㸪ࡑࢀࡽࡣከᏍቨࡢᕪᅽࡀࡁ࠸ሙྜࡢ⏝ࢆᐃ ࡋ࡚࠾ࡾ㸪㢼ὝከᏍቨࡢࡼ࠺࡞పᕪᅽࡢࡶࡢࢆᶍᨃࡍࡿࡣ༑ศ࡛ࡣ࡞ࡗࡓ㸬ᮏ◊✲࡛ࡣࡑࡢࡼ࠺࡞
పᕪᅽࡢሙྜ⢭ᗘⰋࡃ࠼ࡿࣔࢹࣝࡢ㛤Ⓨࢆ┠ᣦࡋࡓ㸬
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◊✲ࡢᴫせࡲࡎ༢⊂ࡢᏍᑐࡍࡿCFDゎᯒࢆ⾜࠸㸪ࡑࡢ⤖ᯝࡽᕪᅽ-ὶ㔞ࡢ㛵ಀᘧࢆᑟࡁࡔࡋࡓ㸬ࡲࡓࡇࡢィ⟬
࡛ࡣᏍࡢ┤ᚄ῝ࡉࡢẚ㸪ࡲࡓቃ⏺ᒙཌࡉᏍ┤ᚄࡢẚ࡞ࡶㄪᰝࡋ㸪ࡑࡢᙳ㡪ࢆࣔࢹࣝ⪃៖ࡋࡓ㸬 ࡇࡢ༢⊂Ꮝࡢ⤖ᯝࡽከᏍቨࡢᣑᙇࢆ⾜ࡗࡓ㸬ᣑᙇ࠾࠸࡚ࡣᏍྠኈࡢὶࢀሙࡀࡢࡼ࠺ᖸ΅ࡋ࠶
࠺ࡢࢆㄪᰝࡍࡿࡓࡵ㸪 」ᩘࡢᏍࢆษࡗࡓከᏍቨࢆ㏻㐣ࡍࡿὶࢀࡢCFDゎᯒࢆ⾜࠸ࡑࡢᙳ㡪ࢆㄪᰝࡋࡓ㸬
ࡲࡓᮏࣔࢹࣝࢆቃ⏺᮲௳ࡋ࡚⤌ࡳ㎸ࢇࡔィ⟬ẚ㍑ࡋ㸪ࣔࢹࣝࡢᛶ⬟ࡢㄪᰝࢆ⾜ࡗࡓ㸬 㻌
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせᮏࣔࢹࣝࡢ᳨ドࡢࡓࡵ㸪ከᏍቨࢆ┤᥋᱁Ꮚ࡛⌧ࡋࡓィ⟬ࣔࢹࣝࢆ⏝࠸ࡓィ⟬ࢆẚ㍑ࡋࡓ㸬ࡑࡢ⤖
ᯝ㸪୧ィ⟬ࡀⰋዲ࡞୍⮴ࢆぢࡏ㸪ᮏࣔࢹࣝࡢጇᙜᛶࢆ♧ࡍࡇࡀฟ᮶ࡓ㸬ࡲࡓ㸪ᅽຊᕪࡢቑຍ㸪✵㝽⋡
ࡢቑຍక࠺㸪Ꮝྠኈࡢὶࢀࡢᖸ΅ࡢᙳ㡪ࡶㄪ㸪ࣔࢹࣝࡢ㝈⏺ࢆ᫂ࡽࡋࡓ㸬
ᅗ
1 ከᏍᏊ㏆ഐ࡛ࡢ࣐ࢵࣁᩘศᕸ㻌
㢼Ὕෆὶ䜜ゎᯒ䛾䛯䜑䛾ከᏍቨ䝰䝕䝹䛾㛤Ⓨ㻌
Development of Porous Wall Model for Analysis of Flow inside a Wind Tunnel
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◊✲ᡂᯝࡢබ⾲≧ἣ ᰝㄞㄽᩥ1) Nambu㸪 T. Hashimoto㸪 A. Aoyama㸪 T and Sato㸪 T.: Numerical Analysis of Flow through a Hole for Modeling of Wind Tunnel Porous Wall㸪 Transactions of Japan Society for Aeronautical and Space Sciences (ᥖ㍕Ỵᐃ)
ᰝㄞ࡞ࡋㄽᩥ
2) Nambu㸪 T. Hashimoto㸪 A. Aoyama㸪 T and Sato㸪 T.: Analysis and Modeling of Flow through Wind Tunnel Porous Wall㸪 40th Fluid Dynamics Conference㸪 AIAA-paper 2010-4858
3)
༡㒊ኴ㸪ᶫᮏ ᩔ㸪㟷ᒣ๛ྐ㸪బ⸨ဴஓ㸸ከᏍቨ㏻㐣ὶࢀࣔࢹࣝ࠾ࡅࡿᏍᙧ≧ຠᯝࡢ᳨ウ㸪ィ⟬ᕤ Ꮫㅮ₇ㄽᩥ㞟㸪Vol.15㸪p683-686
4)
༡㒊ኴ㸸㢼ὝෆὶࢀゎᯒࡢࡓࡵࡢከᏍቨࣔࢹࣝࡢ㛤Ⓨ㸪➨
48ᅇ㣕⾜ᶵࢩ࣏ࣥࢪ࣒࢘ㅮ₇㞟
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪ᶫᮏ ᩔ([email protected])
◊✲ศᢸ⪅㸸ィ⟬ຊᏛ◊✲ࢭࣥࢱ࣮㸪ᒣᮏ㞞ྐ([email protected])
◊✲㛤Ⓨᮏ㒊 ᩘ್ゎᯒࢢ࣮ࣝࣉ㸪㧗ᶫ Ꮥ([email protected])
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ィ⟬ࡢ┠ⓗࢯࢽࢵࢡࣈ࣮࣒ఏィ⟬ᐇᅾẼຠᯝࢆ⪃៖ࡍࡿ㸬
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◊✲ࡢᴫせBurgersᘧ⇕⢓ᛶຠᯝ࠾ࡼࡧศᏊື⦆ຠᯝࢆホ౯ࡍࡿࡓࡵࡢ㡯ࢆ㏣ຍࡋ㸪㉸㡢㏿ᶵ㣕⾜㧗ᗘ
ࡽᆅୖࡲ࡛ࡢẼࡢ᪤▱ࡢ≀ᛶ㸦 ᗘ㸪ᅽຊ㸪ᐦᗘ㸪㡢㏿㸪┦ᑐ‵ᗘ࡞㸧ࢆ⏝࠸㸪⇕⢓ᛶ࣭⦆ຠᯝ
ࢆ⪃៖ࡋࡓࢯࢽࢵࢡࣈ࣮࣒ィ⟬ࢆᐇࡍࡿ㸬 㻌
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせBurgersᘧ⇕⢓ᛶຠᯝ࠾ࡼࡧศᏊື⦆ຠᯝࢆホ౯ࡍࡿࡓࡵࡢ㡯ࢆ㏣ຍࡋࡓ㸬ヲ⣽࡞CFDィ⟬
ẚ㍑ࡋ࡚㸪⢓ᛶ࠾ࡼࡧ⦆ࡢᐃ㔞ⓗ࡞ຠᯝࢆ᳨ドࡋࡓ㸬ࡲࡓ㸪ᐇᅾẼ୰ࡢ‵ᗘศᕸ࡞ࢆ⪃៖ࡋࡓࢯ ࢽࢵࢡࣈ࣮࣒ఏィ⟬ࢆᐇࡋ㸪ᆅୖ࡛ࡢ❧ࡕୖࡀࡾ㛫ࡢホ౯ࡀྍ⬟࡛࠶ࡿࡇࢆ☜ㄆࡋࡓ㸬
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ᅗ1 ヲ⣽CFDィ⟬BurgersࡢἼ㠃ࡢẚ㍑(t=36s)
ᐇᅾẼຠᯝ䜢⪃៖䛧䛯䝋䝙䝑䜽䝤䞊䝮ண 㻌
Sonic boom prediction considerin
ᅗ
2 ࢯࢽࢵࢡࣈ࣮࣒ᆅୖἼᙧ(Burgers:⇕⢓ᛶ࣭⦆࠶ࡾ㸪Poisson:࡞ࡋ)㻌
◊✲ᡂᯝࡢබ⾲≧ἣ1)
ᒣᮏ㸪ᶫᮏ㸪ᮧୖ㸪㟷ᒣ㸪㓇㸪 ͆Burgersᘧࢆ⏝࠸ࡓࢯࢽࢵࢡࣈ࣮࣒ఏィ⟬࠾ࡅࡿ⇕⢓ᛶῶ⾶࠾
ࡼࡧศᏊ⦆ຠᯝ㸪 ͇➨42ᅇὶయຊᏛㅮ₇㸭⯟✵Ᏹᐂᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥᢏ⾡ࢩ࣏ࣥࢪ࣒࢘2010
ㅮ₇㞟(CD-ROM) 㸪2B11㸪(2010)
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ㉸㡢㏿ᶵࢳ࣮࣒㸪㧗ᡞ㇂ ([email protected])
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ィ⟬ࡢ┠ⓗ᭷㝈せ⣲ἲゎᯒࢯࣇࢺ࢙࢘
MSC.NASTRANࢆ⏝࠸ࡓᵓ㐀ゎᯒࢆᐇࡋᵓ㐀యࡢຊᏛ≉ᛶࢆᢕᥱࡍ
ࡿ㸬 㻌
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◊✲ࡢᴫせࣇࣥࡁᵓ㐀యࡢᅛ᭷್ゎᯒࢆᐇࡋ㸪㣕⾜୰ࡢືᩘື࣮ࣔࢻࢆ᥎ᐃࡋ㸪ඹࡍࡿྍ⬟ᛶࡀ
࠶ࡗࡓࡢ࡛タィኚ᭦ࢆᥦࡋࡓ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせࣇࣥࡁᵓ㐀యࡢᅛ᭷್ゎᯒࢆᐇࡋ㸪㣕⾜୰ࡢືᩘື࣮ࣔࢻࢆ᥎ᐃࡋ㸪ඹࡍࡿྍ⬟ᛶࡀ
࠶ࡗࡓࡢ࡛タィኚ᭦ࢆᥦࡋࡓ㸬
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ᅗ
1 ᵓ㐀యࡢື࣮ࣔࢻࡢ㸦1ḟ᭤ࡆ࣮ࣔࢻ㸧
ᵓ㐀య䛾ືゎᯒ㻌
Vibration Analysis of the Long Structure with fins
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ὶయࢢ࣮ࣝࣉ㸪㯮༟ྖ([email protected])
◊✲ศᢸ⪅㸸◊✲㛤Ⓨᮏ㒊 ὶయࢢ࣮ࣝࣉ㸪ụ⏣᫂([email protected]) 㫽ྲྀᏛᏛ㝔ᕤᏛ◊✲⛉ᶵᲔᏱᐂᕤᏛᑓᨷ㸦ᶵᲔᕤᏛࢥ࣮ࢫ㸧 㸪
ఫ 㝯༤㸦ᐈဨ㸧([email protected])
◊✲㛤Ⓨᮏ㒊 ὶయࢢ࣮ࣝࣉ㸪ᱠᒣ ῟([email protected])
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ィ⟬ࡢ┠ⓗ⯟✵ᶵࡢኻ㏿≉ᛶࡸ㡢㡪≉ᛶࡢᐃ㔞ⓗホ౯ࢆ┠ⓗࡋ࡚㸪 ᐇ⏝ⓗ࡞㧗ࣞࣀࣝࢬᩘ㡿ᇦ࠾ࡅࡿ㸪 㑄
⛣ࡸ㞳➼ࡢ」㞧࡞ὶࢀሙࢆྵࡴゎᯒἲࢆ☜❧ࡍࡿ.
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◊✲ࡢᴫせ㧗㏿ᡭἲ୪ࡧ㧗⢭ᗘᡭἲࢆ᳨ウࡋ㸪ࢥ࣮ࢻࡢಙ㢗ᛶࢆྥୖࡉࡏࡿ◊✲ࢆᐇࡍࡿࡶ㸪㛤
Ⓨࡋࡓゎᯒᡭἲࢆ⏝࠸࡚㸪㧗Reᩘ㡿ᇦ࠾ࡅࡿὶ㑄⛣㐣⛬ࡢᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜࠸㸪ࢩ࣑ࣗࣞ
࣮ࢩࣙࣥࡢጇᙜᛶࢆ㑄⛣⨨㸪ᏳᐃT-SἼࡢ࿘Ἴᩘศᕸ➼ࡢ㠃ࡽ⥺ᆺᏳᐃᛶゎᯒཬࡧᐇ㦂⤖ᯝࡢᐃ 㔞ⓗẚ㍑ࢆ㏻ࡋ᳨࡚ドࡍࡿ㸬
ࡲࡓ㸪⯟✵ᶵ➼௦⾲ࡉࢀࡿࡼࡾ」㞧࡞ᙧ≧㐺⏝ࡍࡿࡓࡵ㸪⊂⮬ᥦࡋ࡚࠸ࡿ㸪୍⯡≉ᛶ
ࣥࢱ࣮ࣇ࢙ࢫ⌮ㄽࢆᛂ⏝ࡋࡓ᪂ࡋ࠸ࢥࣥࢭࣉࢺࡼࡿ࣐ࣝࢳࣈࣟࢵࢡゎᯒࢥ࣮ࢻࢆ㛤Ⓨࡋ㸪ᐇ⏝ᙧ≧
࡛ࡢᛶ⬟᳨ドࢆ┠ᣦࡍ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせ࣭ ᖺᗘࡲ࡛ࡢ◊✲࠾࠸࡚㸪༢Ⅼ⤖ྜ࡛㸪ࣈࣟࢵࢡቃ⏺࡛ࡢ࢟ࣥࢡࢆチᐜࡍࡿ࠸࠺≉ᚩࢆᣢࡘ㸪୍
⯡≉ᛶࣥࢱ࣮ࣇ࢙ࢫ⌮ㄽࢆᛂ⏝ࡋࡓ࣐ࣝࢳࣈࣟࢵࢡLESゎᯒࢥ࣮ࢻࢆ㛤Ⓨࡋ㸪」㞧ᙧ≧ࡋ࡚㸪
ࣇࣛࢵࣉࢆ᭷ࡍࡿ㧗ᥭຊ2ḟඖ⩼ࡢ᳨ドゎᯒࢆᐇࡋࡓ㸬ࡑࡢ⤖ᯝ㸪ᚑ᮶ྍ⬟ࡉࢀ࡚࠸ࡓ」ᩘࡢ㑄
⛣Ⅼࢆࣔࢹࣝࢆ⏝࠸ࡿࡇ࡞ࡋᤕ⋓࡛ࡁࡿࡇࢆᐇドࡋ㸪ᅽຊศᕸ➼ࡶᐃ㔞ⓗᐇ㦂್୍⮴ࡍࡿ
ࡇࢆ☜ㄆࡋࡓ㸬
࣭ ᖺᗘࡣࡇࡢィ⟬ᡭἲࢆࢫࣛࢵࢺ⩼ࢆྵࡴᙧ≧㐺⏝ࡋ㸪Multiple Tonal Peak㸦ࢫࣛࢵࢺ㦁㡢ヨ㦂
࡛⌧ࢀࡿ୰࿘Ἴᩘ㡿ᇦ࡛ࡢ」ᩘࣆ࣮ࢡ㡢㸧ࡢᤕ⋓ࢆヨࡳࡓ㸬ࡉࡽⓎ⏕ࡢ࣓࢝ࢽࢬ࣒ࡢ᳨ウࢆ㛤ጞࡋ ࡓ㸬
࣭࡞ᡭἲࡢ≉ᚩ
(1)
ᑐ㇟᪉⛬ᘧ㸸3ḟඖᅽ⦰ᛶࢼࣅ࢚ࢫࢺ࣮ࢡࢫ᪉⛬ᘧ
(2)✵㛫㞳ᩓἲ㸸4ḟ⢭ᗘ᭱㐺ࢥࣥࣃࢡࢺࢫ࣮࣒࢟
(3)
㛫✚ศἲ㸸4ḟ⢭ᗘ᭱㐺ࣝࣥࢤࢡࢵࢱࢫ࣮࣒࢟
(4) LES㸸ADMἲ
(5)
ቃ⏺᮲௳㸸 ୍⯡ᗙᶆ⣔ᣑᙇࡉࢀࡓNavier-Stokes characteristic boundary conditions (NSCBC)
(6)ࣥࢱ࣮ࣇ࢙࣮ࢫ(≉␗)㠃ࡢྲྀࡾᢅ࠸㸸୍⯡≉ᛶࣥࢱ࣮ࣇ࢙࣮ࢫ⌮ㄽ㸦⊂⮬ᥦ㸧
(7)
ὶࣔࢹࣝ㸸㑄⛣ཬࡧὶ㛵ࡍࡿࣔࢹࣜࣥࢢࡣ↓ࡋ
㧗䝺䜲䝜䝹䝈ᩘ䛻䛚䛡䜛ᅽ⦰ᛶள㡢㏿ὶ䛾㧗⢭ᗘゎᯒἲ䛾◊✲㻌
Numerical Simulation of Subsonic Flow with High Accuracy and Resolution at High Reynolds Numbers
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ᅗ
1 ᗘศᕸ(㉥㸪㟷㸸ᶓ 㸪ỈⰍ㸪㯤㸸⦪ 㸧㻌
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ᅗ
2㡢Ἴᤕ⋓
(50m/sec㸪㏄ゅ
10ᗘ㸪
Re106㸧
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸◊✲㛤Ⓨᮏ㒊 ὶయࢢ࣮ࣝࣉ㸪㯮༟ྖ([email protected])
◊✲ศᢸ⪅㸸◊✲㛤Ⓨᮏ㒊 ὶయࢢ࣮ࣝࣉ㸪ụ⏣᫂([email protected]) 㫽ྲྀᏛᏛ㝔ᕤᏛ◊✲⛉ᶵᲔᏱᐂᕤᏛᑓᨷ㸦ᶵᲔᕤᏛࢥ࣮ࢫ㸧 㸪
ఫ 㝯༤㸦ᐈဨ㸧([email protected])
◊✲㛤Ⓨᮏ㒊 ὶయࢢ࣮ࣝࣉ㸪ᱠᒣ ῟([email protected])
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ィ⟬ࡢ┠ⓗ㏆ഐሙࡽ㐲᪉ሙ⮳ࡿᗈ⠊ᅖࡢ㦁㡢ண ἲࡢᵓ⠏ࢆ┠ⓗࡋ࡚㸪㡢㡪⌮ㄽࢆᛂ⏝ࡋࡓ㐲᪉ሙ㡢㡪ண ᡭἲ࠾ࡼࡧ㸪㏆ഐሙࡢࣥࢱ࣮ࣇ࢙࣮ࢫࡢྲྀࡾᢅ࠸㛵ࡍࡿ◊✲ࢆ⾜࠺㸬
᭱ึࡢㄢ㢟ࡋ࡚㸪పࣞࣀࣝࢬ㡿ᇦ࠾ࡅࡿ2ḟඖ⩼࿘ࡾࡽⓎ⏕ࡍࡿ㡢ࢆᢅ࠸㸪DNSࡼࡿ㏆ഐ ሙࡢゎᯒἲࡢ᳨ドཬࡧ㡢㡪⌮ㄽࡼࡿ㦁㡢ண ἲࡢ⢭ᗘྥୖࢆ┠ᣦࡍ㸬
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◊✲ࡢᴫせ2ḟඖᒙὶᇦ࠾ࡅࡿDNSィ⟬㐺⏝ྍ⬟࠺ࢆ᳨ドࡍࡿࡶ㸪ᚑ᮶ࡢ㡢㡪⌮ㄽ௦ࢃࡿゎ
ᯒᡭἲࢆᥦࡋ㸪
DNSゎᯒ⤖ᯝࡢẚ㍑ࢆ㏻ࡌ࡚㸪㐲᪉ሙ㦁㡢ண ⢭ᗘࡢྥୖࡀᚓࡽࢀࡿ࠺ࢆ᳨ドࡍࡿ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせ࣭ᚑ᮶ᡭἲࡢ㡢㡪⌮ㄽ㠀ᅽ⦰CFDࡢ⤌ࡳྜࢃࡏ࡛ࡣ㸪ࢻࢵࣉ࣮ࣛຠᯝࡸ㡢Ἴࡢᑕ࣭ᩓ⌧㇟ࡢ⌧
ᛶࡢ㠃࡛ㄗᕪࡀࡁ࠸࠸࠺ၥ㢟ࡀ࠶ࡗࡓ㸬ᖺᗘࡲ࡛㸪᪂ࡓ㸪
Ffowcs Williams-Hawkings (FW-H)ἲࢆ㧗⢭ᗘᅽ⦰ᛶLESࢥ࣮ࢻ⤌ࡳ㎸ࡴᡭἲࢆᵓ⠏ࡋ㸪పReᩘὶࢀࡢ㐺⏝࠾࠸࡚㸪୍ᵝὶ୰ࡢࢻ
ࢵࣉ࣮ࣛຠᯝࢆ⌧࡛ࡁࡿࡇࢆᐇドࡋࡓ㸬ࡇࢀࡼࡾ㸪㏆ഐሙࡽ㐲᪉ሙࡲ࡛ࡢᗈ⠊ᅖ࡛✵ຊ㡢ࡢ
⌧ࡀྍ⬟࡞ࡗࡓ㸬
࣭ᖺᗘࡣࡉࡽ㸪ὶཬࡧ㧗ள㡢㏿࡛༟㉺ࡍࡿᅄ㔜ᴟ㡢ホ౯ἲࢆFW-Hἲᇶ࡙࠸ࡓ㐲᪉ሙண ࢥ࣮
ࢻ⤌ࡳ㎸ࡳ㸪ὶ㑄⛣ࢆྵࡴ
2ḟඖ⩼࿘ࡾࡢὶࢀ㐺⏝ࡋ㸪4㔜ᴟ㡢ࡢホ౯ࢆヨࡳࡓ㸬⯟✵ᶵ㦁㡢䛻㛵㐃䛧䛯㡢㡪䝅䝭䝳䝺䞊䝅䝵䞁䜈䛾ᛂ⏝䛻㛵䛩䜛◊✲㻌
Research on Simulation of Airframe noise
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ᅗ1 ᳨ドゎᯒ⤖ᯝ
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◊✲ᡂᯝࡢබ⾲≧ἣ1)
㯮㸪ఫ㸪ᱠᒣ㸪”Numerical Simulation around Airfoil with Tonal Noise Generation”㸪
ICAS2010-3.11.3㸪 2010.2)
ఫ㸪㯮㸪ᱠᒣ㸪
”New Milti-block Computational Methodlogy by Characteristic Interface Conditions with High-order Interpolation”㸪 ICAS2010-2.2.ST2㸪 2010.㻌
ὶ䛷༟㉺䛩䜛ᅄ㔜ᴟ㡢ホ౯ἲ䜢FW-Hἲ䛻ᇶ䛵䛔䛯㐲᪉ሙண 䝁䞊䝗䛻⤌䜏㎸䜏䠈 㡢※㡿ᇦ䜢௵ព䛻㑅䜉䜛ᡭἲ䜢㛤Ⓨ
య✚㡢※㡿ᇦ
䠖
㏿ᗘuᡂศ
▐ኚື
ὶ㦁㡢ィ⟬:
¾ NACA0012
¾U= 40[m/s]
¾㏄ゅ10 [deg.]
¾Re = 4㽢105
¾ ᱁ᏊⅬᩘ: 20㽢106
᪂つ/⊂⮬ᛶ䚸ᢏ⾡䝺䝧䝹
⯟✵ศ㔝䛻䛚䛡䜛ᐇ⏝䝺䝧䝹䛾つᶍィ⟬䛷䠈 ᅄ㔜ᴟ㡢䜢┤᥋ⓗ䛻ィ⟬䛧䛯䛿◊✲䛷䛿 ぢ䜙䜜䛪䚸᪂つᛶ䛿㧗䛔
ᐇ㦂್
䠄Suzuki et al.䠅
㔜ᴟ 䠇ᅄ㔜ᴟ
㔜ᴟ 䛾䜏 㖄┤ୖ᪉䛷䛾SPLẚ㍑
LES䛾⤌䜏㎸䜏䛜preliminary䛷䛒䜛䛯䜑
ὶ⏕ᡂཬ䜃㡢ᅽ䛾㐣ホ౯䛜ぢ䜙䜜䜛䛜䚸 ᱁Ꮚゎീᗘ䛾᳨ウ䜢ྵ䜑ᚋᨵၿ䛾ணᐃ
䝥䝻䝆䜵䜽䝖䞉እ㒊䝙䞊䝈䜈䛾㈉⊩
ᮏ䝔䞊䝬䛷㛤Ⓨ䛧䛯ᡭἲ䛿ᡃ䚻䜸䝸䝆䝘䝹䛾ᢏ⾡䛷䛒䜚䠈䛣䜜 䛻䜘䜚㧗ᥭຊ⨨䜔⬮䛺䛹䛾」㞧ᙧ≧≀య䛛䜙ᨺᑕ䛥䜜䜛ᶵ య㦁㡢䞉䝆䜵䝑䝖➼䛾䜶䞁䝆䞁㦁㡢ண ၥ㢟䛷䛾㧗⢭ᗘ䛜ᮇ ᚅ䛥䜜䜛䚹
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸ᮾᏛᏛ㝔ᕤᏛ◊✲⛉㸪బࠎᮌ㍜([email protected])
◊✲ศᢸ⪅㸸ᮾᏛᏛ㝔ᕤᏛ◊✲⛉㸪୰ᶫ༤([email protected]) ᮾᏛᏛ㝔ᕤᏛ◊✲⛉㸪᭹㒊 ₶([email protected])
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ィ⟬ࡢ┠ⓗᑗ᮶ⓗ࡞ࣥࢸ࣮ࢡࢆྵࡵࡓᶵయ㸭᥎㐍⣔⤫ྜゎᯒᡭἲࡢ㛤Ⓨࢆᛕ㢌㸪㠀ᵓ㐀᱁Ꮚࢯࣝࣂ࣮࡛࠶ࡿ
TASࢥ࣮ࢻࡢ㧗ᗘࢆ┠ⓗࡋ࡚㸪࢚ࣥࢪࣥẼࢆྵࡴ✵ຊ᥎⟬ࢯࣝࣂ࣮ࡢ㛤Ⓨࢆ┠ⓗࡍࡿ㸬≉㸪
࢚ࣥࢪࣥẼࡼࡿᖸ΅ࡀࡁ࠸ᐃࡉࢀࡿ㞳╔㝣ࡢ✵ຊ≉ᛶࡢ᥎⟬⢭ᗘࡢྥୖࢆᅗࡾ㸪࢚ࣥࢪࣥ
సືࡼࡿప㏿✵ຊ≉ᛶࡢᙳ㡪ᐇ㣕⾜᮲௳࡛ࡢ㞳╔㝣✵ຊᛶ⬟ࢆ᥎⟬࡛ࡁࡿᩘ್ゎᯒᢏ⾡ࡢ☜❧ࢆ
┠ᣦࡍ㸬
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◊✲ࡢᴫせ㟼⢔㉸㡢㏿◊✲ᶵ2ḟᙧែᑿ⩼Ẽᖸ΅ప㏿㢼Ὕヨ㦂ྠ᮲௳࠾ࡅࡿᩘ್ゎᯒ⤖ᯝࡀࡁࡃ␗࡞ࡿ
ࡓࡵ㸪ࡑࡢཎᅉࢆㄪᰝࡋ࡚ᩘ್ゎᯒ⤖ᯝࡢ⢭ᗘࢆྥୖࡉࡏࡿࡓࡵ㸪᱁Ꮚゎീᗘࡢᕪ㐪ࡼࡿᙳ㡪ࢆホ ౯ࡍࡿඹィ⟬ᡭἲࡢᨵၿࢆᅗࡿ㸬ึᖺᗘࡣ㸪㞳Ⓨ╔࠾ࡅࡿ࢚ࣥࢪࣥẼࢆྵࡴ✵ຊゎᯒࢆ᱁Ꮚ ゎീᗘࢆኚ᭦ࡋ࡚⾜࠸㸪㢼Ὕヨ㦂⤖ᯝࡢẚ㍑ࢆ⾜࠺㸬ḟᖺᗘࡣ㸪࢚ࣥࢪࣥẼࡼࡿ✵ຊᖸ΅ࢆ᥎⟬
ࡍࡿࡓࡵࡢゎ㐺ྜ᱁Ꮚ⣽ศἲࢆ᳨ウࡍࡿඹィ⟬ᡭἲࡢᨵၿࢆ⾜࠸㸪ᶵయ㸭᥎㐍⣔⤫ྜὶືゎᯒ⢭
ᗘࡢྥୖࢆ┠ᣦࡍ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせᖺᗘ㸪ᶵయ㸭᥎㐍⣔⤫ྜὶືゎᯒᢏ⾡☜❧ࡢ㊊ࡾࡋ࡚㸪ᮾᏛ࡛㛤Ⓨࡉࢀࡓ㠀ᵓ㐀᱁Ꮚὶ యゎᯒࢯࣝࣂ࣮TAS-code㸦Tohoku university Aerodynamic Simulation code㸧ࢆ⏝࠸࡚㟼⢔㉸㡢㏿◊
✲ᶵ࿘ࡾࡢゎᯒࢆ⾜ࡗࡓ㸬ࢪ࢙ࢵࢺẼࡀฟࡉࢀࡓ≧ែ࠾ࡅࡿᶵయࡢ✵ຊ≉ᛶࢆ᥎⟬ࡋ㸪᱁Ꮚࡢ⢒
ࡉࡢ㐪࠸ࡼࡾ✵ຊ≉ᛶࡢᙳ㡪ࡀࡢ⛬ᗘ⌧ࢀࡿࡢࢆJAXA࡛⾜ࢃࢀࡓᑿ⩼Ẽᖸ΅ప㏿㢼Ὕヨ㦂
ࡼࡾᚓࡽࢀࡓ್ẚ㍑ࡋࡓ㸬
䜶䞁䝆䞁Ẽ䜢ྵ䜐✵ຊ≉ᛶ᥎⟬ᩘ್ゎᯒᢏ⾡䛾◊✲㻌
Numerical Analysis of Aerodynamic Characteristic including Jet Exhaust
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ᅗ
1ᶵయ㸭᥎㐍⣔⤫ྜゎᯒ⤖ᯝ
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㻌 㻌
ᅗ
2 ᱁ᏊゎീᗘࡼࡿẼ㒊࠾ࡅࡿ࣐ࢵࣁᩘศᕸࡢ┦㐪㻌 㻌
◊✲ᡂᯝࡢබ⾲≧ἣ1)
᭹㒊 ₶㸪బࠎᮌ㍜㸪୰ᶫ༤㸪 ࠕ᱁Ꮚ⣽ศࡀࢪ࢙ࢵࢺẼࢆྵࡴᶵయࡢ✵ຊ≉ᛶ࠼ࡿᙳ㡪ࠖ 㸪
⯟✵ᏱᐂᏛ㒊ᨭ㒊
2011ᖺㅮ₇ཬࡧ➨
12ᅇ⏝ᆺᏱᐂ㍺㏦⣔ࢩ࣏ࣥࢪ࣒࢘㸪ྎ㸪2011 ᖺ
3᭶
10᪥㸬
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ⎔ቃ㐺ᛂ࢚ࣥࢪࣥࢳ࣮࣒㸪ᒣ᰿ ᩗ([email protected])
◊✲ศᢸ⪅㸸ᮾி㎰ᕤᏛᏛ㝔㸪➉⏣ᩄᗈ
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ィ⟬ࡢ┠ⓗ」㞧࡞ࢱ࣮ࣅࣥ෭༷ᵓ㐀ࡘ࠸࡚㸪ヲ⣽࡞ ᗘศᕸᇶ࡙ࡃ⇕ᛂຊホ౯ࢆ⾜࠺ࡓࡵ㸪ὶయ࣭⇕ఏᑟ㐃 ᡂᩘ್ゎᯒࡽᚓࡽࢀࡿᅛయ ᗘศᕸࢆ㸪Nastran➼ࡼࡿ⇕ᛂຊゎᯒࢹ࣮ࢱࡋ࡚⏝ࡍࡿ㸬
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◊✲ࡢᴫせᮏ◊✲࡛ࡣ㸪ὶయ࣭⇕ఏᑟ㐃ᡂᩘ್ゎᯒࡽᚓࡽࢀࡿ⾲㠃 ᗘࢹ࣮ࢱ➼ࢆ㸪␗࡞ࡿ᱁Ꮚ⛣⾜ࡍࡿࡓ
ࡵࡢࢹ࣮ࢱ⛣⾜ࣉࣟࢢ࣒ࣛࢆ㛤Ⓨࡋࡓ㸬ලయⓗࡣ㸪
UPACSࡢゎᯒ⤖ᯝࢹ࣮ࢱࡽ㸪௵ពࡢᗙᶆⅬ࡛ࡢ್ࢆ⿵ࡍࡿᶵ⬟ࢆᣢࡘࣉࣟࢢ࣒ࣛࢆ㛤Ⓨࡋ㸪Nastranࡢධຊࣇࣝ୰ࡢቃ⏺᮲௳್⨨ࡁ࠼ࡿࡇ
࡛㸪ヲ⣽࡞ ᗘศᕸࡼࡿ⇕ᛂຊゎᯒࢆᐇ⌧ࡍࡿ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせUPACSࡽNastranࡢࢹ࣮ࢱ⛣⾜ࣉࣟࢢ࣒ࣛࢆ᳨ドࡋࡓ㸬UPACS࡛ࡣ㔜ྜ᱁Ꮚࢆ⏝ࡋ㸪JSS࡛
ࢱ࣮ࣅࣥ⩼ࡢࣇ࣒ࣝ෭༷ᵓ㐀ࣔࢹࣝࡢ㐃ᡂゎᯒࢆ⾜࠸㸪ࡑࡢ⤖ᯝࡽ㔜ྜࡢ㔜࡞ࡾ㒊ศ࡛ࡢࢹ࣮ࢱ㔜
」ࢆ⮬ືⓗุᐃࡋ࡚Nastran⏝ᅄ㠃య㠀ᵓ㐀᱁Ꮚࡢቃ⏺᮲௳ࢆᚓ࡚㸪Nastranഃ࡛ࡢ ᗘศᕸゎᯒࡀ 㐃ᡂゎᯒ⤖ᯝ▩┪ࡏࡎ㸪ࡉࡽ⇕ᛂຊゎᯒࡀྍ⬟࡛࠶ࡿࡇࢆ☜ㄆࡋࡓ㸬
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ὶయ䞉⇕ఏᑟ㐃ᡂᩘ್ゎᯒ䛸ᅛయ⇕ఏᑟ䛾㐃ᦠ㻌
Coupling Method between Conjugate Heat Transfer Simulation and Thermal Stress Analysis
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2 㐃ᡂゎᯒ࡛ᚓࡽࢀࡓ ᗘศᕸࡼࡿ⇕ᛂຊゎᯒ㸦࣑࣮ࢮࢫᛂຊศᕸ㸧
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◊✲ᡂᯝࡢබ⾲≧ἣ1)
ᒣ᰿ ᩗ㸪 ࠕὶయ࣭⇕ఏᑟ㐃ᡂゎᯒᅛయ⇕ᛂຊゎᯒࡢ㐃ᦠᡭἲࡘ࠸࡚ࠖ 㸪➨
38ᅇ᪥ᮏ࢞ࢫࢱ࣮ࣅࣥ
Ꮫᐃᮇㅮ₇㸪2010 ᖺ
10᭶
21᪥㸬
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ᅜ⏘᪑ᐈᶵࢳ࣮࣒㸪ᒣᮏ୍⮧([email protected])
◊✲ศᢸ⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ᅜ⏘᪑ᐈᶵࢳ࣮࣒㸪ᮧᒣගᏹ([email protected])
⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ᅜ⏘᪑ᐈᶵࢳ࣮࣒㸪ᮧኴ㑻([email protected])
⳻ࢩࢫࢸ࣒ࢬ㸪⏣୰ኴ㑻 ([email protected])
⳻ࢩࢫࢸ࣒ࢬ㸪ᖹ ([email protected])
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ィ⟬ࡢ┠ⓗ⯟✵ᶵ㧗ᥭຊ⨨࿘ࡾ&)'ゎᯒᢏ⾡ཬࡧ⯟✵ᶵᕠ⯟ࡢ&)'ᢠண ᢏ⾡㛤Ⓨ᳨ド
⯟✵ᶵ㧗ᥭຊ⨨࿘ࡾCFDゎᯒᢏ⾡ཬࡧ⯟✵ᶵᕠ⯟ࡢ
CFDᢠண ᢏ⾡ࡢ㛤Ⓨ㸪᳨ドࡢ୍⎔ࡋ࡚㸪
AIAAࡀദࡍࡿ⯟✵ᶵ࣓࣮࢝㸪⯟✵ᶵ◊✲ᶵ㛵㸪CFDࢯࣇࢺ♫ࡀከᩘཧຍࡍࡿᅜ㝿CFD࣮࣡ࢡࢩࣙࢵࣉࡢㄢ㢟ࢆィ⟬ࡋ࡚㸪ᅜ㝿CFD࣮࣡ࢡࢩࣙࢵࣉ࡛ࡢẚ㍑ࢆ⾜࠺ࡇࡼࡾ㸪⌧≧ㄢ㢟ࢆᢕᥱࡋ㸪
ᚋࡢᨵၿⅬ㸪᪉ྥᛶࢆᚓࡿ㸬
㧗ᥭຊ⨨㢼Ὕヨ㦂ᑐᛂゎᯒ
2ḟඖ㧗ᥭຊ⨨㢼Ὕヨ㦂࠾ࡅࡿ㢼Ὕቨഃቨቃ⏺ᒙࡢᙳ㡪࡞㢼Ὕቨᖸ΅࣭ᨭᣢᖸ΅ࢆᢕᥱࡍࡿ㸬
⬮㦁㡢◊✲
㦁㡢Ⓨ⏕࣓࢝ࢽࢬ࣒ゎ᫂ప㦁㡢㈨ࡍࡿࡓࡵPIV(Particle image velocimetry)ࡼࡿ⬮ᚋ ὶィ ᑐᛂࡍࡿゎᯒࢆ⾜࠸㸪ὶࢀሙࡁ࡞ᙳ㡪ࢆ࠼ࡿᵓᡂ㒊ရࢆ≉ᐃࡍࡿ㸬
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◊✲ࡢᴫせ⯟✵ᶵ㧗ᥭຊ⨨࿘ࡾ&)'ゎᯒᢏ⾡ཬࡧ⯟✵ᶵᕠ⯟ࡢ&)'ᢠண ᢏ⾡㛤Ⓨ᳨ド
タィ⢭ᗘせồࡀཝࡋ࠸⯟✵ᶵᕠ⯟ࡢCFDᢠண ᢏ⾡㸪ཬࡧ㸪⯟✵ᶵタィࡢRANS CFDࡢ㐺⏝
⠊ᅖࢆᗈࡆࡿ⯟✵ᶵ㞳╔㝣᮲௳ୗ࠾ࡅࡿ㧗ᥭຊ⨨࿘ࡾCFDゎᯒᢏ⾡ࡢ⢭ᗘ᳨ドಙ㢗ᛶྥୖࢆ⾜
࠺㸬ࡑࡢࡓࡵ㸪ᅜ㝿CFD࣮࣡ࢡࢩࣙࢵࣉࡢㄢ㢟ᑐࡋ࡚
JAXA APG࡛⏝ࡋ࡚࠸ࡿᵓ㐀᱁Ꮚ㠀ᵓ㐀᱁ᏊCFDࢥ࣮ࢻࡢ᱁Ꮚ᮰ᛶ➼ࡢ⤖ᯝࡢ┦ẚ㍑ᅜ㝿CFD࣮࣡ࢡࢩࣙࢵࣉ࡛ࡢẚ㍑ࢆ⾜࠺㸬
㧗ᥭຊ⨨㢼Ὕヨ㦂ᑐᛂゎᯒ
2ḟඖ㧗ᥭຊ⨨ᶍᆺࡢ㦁㡢ィ 㢼Ὕヨ㦂ࢆᐇࡍࡿ࠶ࡓࡾ㸪㢼Ὕቨഃቨቃ⏺ᒙࡢᙳ㡪࡞㢼Ὕቨ
ᖸ΅࣭ᨭᣢᖸ΅ࢆ๓ᢕᥱࡋ㸪2ḟඖᛶࡀ☜ಖ࡛ࡁࡿ☜ㄆࡍࡿ㸬ࡲࡓ㸪ᙳ㡪ࡀࡁ࠸ሙྜࡣࡑࡢ ᑐ⟇ࢆᐇࡍࡿ㸬
⬮㦁㡢◊✲
ᶵయ㦁㡢ࡢ㦁㡢※ࡢ୍ࡘ࡛࠶ࡿ⬮㦁㡢పῶࡢࡓࡵ㸪⬮㦁㡢ࡢ୰࡛㡢※ࡢ୍ࡘ࡛࠶ࡿ㌴㍈࿘
ᅖ≉ࡋ㸪Ⓨ⏕࣓࢝ࢽࢬ࣒ゎ᫂ప㦁㡢ࡢ◊✲ࢆ⾜࠺㸬ᮏィ⟬࡛ࡣ㦁㡢Ⓨ⏕࣓࢝ࢽࢬ࣒ゎ᫂ప㦁 㡢㈨ࡍࡿࡓࡵ㸪RANS CFDࡼࡾ㌴㍈࿘ᅖࡢὶࢀሙࡢࢹ࣮ࢱࢆྲྀᚓࡍࡿ㸬
⯟✵ᶵ䛾✵ຊ䞉㦁㡢䛻㛵䛩䜛◊✲㻌
Study on Aerodynamics and Aeroacoustics for Civil Aircraft
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせ⯟✵ᶵ㧗ᥭຊ⨨࿘ࡾ&)'ゎᯒᢏ⾡ཬࡧ⯟✵ᶵᕠ⯟ࡢ&)'ᢠண ᢏ⾡㛤Ⓨ᳨ド
JAXA APG
࡛⏝ࡋ࡚࠸ࡿᵓ㐀᱁Ꮚ㠀ᵓ㐀᱁Ꮚ
CFDࢥ࣮ࢻࡢ᱁Ꮚ᮰ᛶ➼ࡢ┦ẚ㍑ᅜ㝿
CFD
࣮࣡ࢡࢩࣙࢵࣉ࡛ࡢẚ㍑ࡼࡾ㸪⌧≧ࡢゎᯒ⢭ᗘㄢ㢟ࢆᢕᥱࡋ㸪ᚋࡢᨵၿⅬ㸪᪉ྥᛶࢆ᫂ࡽ
ࡋࡓ㸬≉ಙ㢗ᛶࢆྥୖࡉࡏ࡚࠸ࡃୖ࡛㸪ୗグ
2Ⅼࡀㄢ㢟ࡀ࠶ࡿࡇࡀࢃࡗࡓ㸬
࣭ᕠ⯟ᙧែ㸪㞳╔㝣ᙧែࡶ㸪ᚋ㸪ࣞࣀࣝࢬᛂຊࡢ㠀⥺ᙧᛶࢆ⪃៖ࡋࡓ㧗ḟࡢὶࣔࢹࣝࡢ㐺⏝
㛵ࡍࡿヲ⣽࡞᳨ウࡸᐇ㦂⤖ᯝࡼࡿ᳨ドࡀᚲせ㸬
࣭㞳╔㝣ᙧែ࠾ࡅࡿࣇࣛࢵࣉᚋ⦕ࡢ㞳ࡢண ࡢಙ㢗ᛶྥୖࡀᚲせ㸬ቃ⏺ᒙࡢὶ㑄⛣ࡢண ࡤࡾ
࡛࡞ࡃ㸪᱁Ꮚゎീᗘ㸪ὶࣔࢹࣝࡢ㐪࠸ࡼࡗ࡚ࡶண ⤖ᯝࡁ࡞ᕪࢆ⏕ࡌ࡚࠾ࡾ㸪ࡲࡔᢏ⾡ࡢ᳨
ドࡀ༑ศ㸬ᚋ㸪ࡇࢀࡽࡢᐃ㔞ᛶ㛵ࡋ࡚ᣦ㔪ࢆᚓࡿࡀ㔜せ࡞ㄢ㢟࡞ࡿ㸬
ᚋࡣ㸪ὶࣔࢹࣝ࠾ࡼࡧ᱁Ꮚゎീᗘࡢẚ㍑᳨ウ㸪㑄⛣ࣔࢹࣝࡢᑟධ࡞ࢆ㐍ࡵ࡚࠸ࡃ㸬ࡲࡓࢥ࣮
ࢻࡢ㧗㏿ࡶᚋࡢᢏ⾡ᨵⰋࡋ࡚㐍ࡵ࡚࠸ࡃ㸬
㧗ᥭຊ⨨㢼Ὕヨ㦂ᑐᛂゎᯒ
ゎᯒࡼࡾḟࡢ⤖ᯝࢆᚓࡓ㸬
࣭ഃቨࡽ25%㞳ࢀࡿ࠾࠾ࡴࡡ2ḟඖᛶࡀಖࡓࢀ㸪ࡲࡓ㸪㏄ゅࡀ㧗࠸ሙྜࡶ୰ኸ㒊࡛༑ศ2ḟඖᛶࡀ
࠶ࡾጇᙜ࡞ヨ㦂ࢆᐇࡍࡿࡀྍ⬟࡛࠶ࡿ㸬
࣭ഃቨࢹࣂࢫAࡼࡾഃቨࡢᙳ㡪ࡼࡿ㞳ࡀῶᑡࡋ2ḟඖᛶࢆྥୖࡉࡏࡿࡀ࡛ࡁࡿ㸬ࡇࡢሗࢆ⏝
࠸࡚㢼Ὕヨ㦂ࢆᐇࡋࡓ㸬
⬮㦁㡢◊✲
PIV(Particle image velocimetry)ࡼࡿ⬮ᚋὶィ ⤖ᯝࡢẚ㍑ࡼࡾ㸪CFDゎᯒ⤖ᯝࡢጇᙜᛶ
ࢆ☜ㄆࡋࡓ㸬ࡲࡓ㸪㌴㍈࿘ᅖࡢὶࢀሙࡢࢹ࣮ࢱࢆྲྀᚓࡋ㸪ὶࢀሙࡁ࡞ᙳ㡪ࢆ࠼ࡿᵓᡂ㒊ရࢆ≉
ᐃࡋࡓ㸬
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D '/5)0RGHO 㢼Ὕヨ㦂ࡢ⾲㠃ὶ⥺ࡢẚ㍑&/ ᮲௳
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E 1$6$&500RGHOὶࣔࢹࣝࡢ⩼⬗⤖ྜ㒊ࡢ㞳ࡢᙳ㡪㸦㏄ゅᗘ㸧
D 7UDSZLQJ㧗ᥭຊ⨨ᒎ㛤ᨭᣢ㔠ල⩼࿘ᅖࡢᅽศᕸࡢᙳ㡪
E ᨭᣢ⨨ࡢᅽຊศᕸࡢᙳ㡪ᐇ㦂⤖ᯝࡢẚ㍑
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1.2 㞳╔㝣㧗ᥭຊᙧែ࠾ࡅࡿ㧗ᥭຊ⨨ᒎ㛤ᨭᣢ㔠ලࡢᙳ㡪㻌
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ᅗ
2.1 㧗ᥭຊ⨨2ḟඖ㢼Ὕヨ㦂࠾ࡅࡿഃቨቃ⏺ᒙࡢᙳ㡪ㄪᰝ⤖ᯝ㸸
ഃቨ⩼ୖࡢ࢜ࣝࣇ࣮ࣟ⾲㠃
Cp㻌
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㻌 ᅗ
3.1 PIV(Particle image velocimetry)ࡼࡿ⬮ᚋὶィ ࡢẚ㍑⤖ᯝ㻌
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◊✲ᡂᯝࡢබ⾲≧ἣ1) Yamamoto㸪 K.㸪 Tanaka㸪 K.㸪 Murayama㸪 M.㸪 “Comparison Study of Drag Prediction for the 4th CFD Drag Prediction Workshop using Structured and Unstructured Mesh Methods㸪” AIAA Paper 2010-4222㸪 Jun. 2010.
2) Murayama㸪 M.㸪 Tanaka㸪 K.㸪 and Yamamoto㸪 K.㸪 “JAXA Contribution to HiLiftPW-1:
Computational Results Using UPACS and TAS code㸪” Oral presentation㸪 1st AIAA CFD High Lift Prediction Workshop㸪 Chicago㸪 IL㸪 June. 2010.
3)
ᒣᮏ୍⮧㸪ᮧᒣගᏹ㸪⏣୰ኴ㑻㸪 ͆⩼⬗⤖ྜ㒊࠾ࡅࡿቃ⏺ᒙ㞳ࡢὶࣔࢹࣝࡢᙳ㡪㸪 ͇➨
24ᅇ
ᩘ್ὶయຊᏛࢩ࣏ࣥࢪ࣒࢘ண✏㞟
B7-4㸪 2010㸬4)
⏣୰ኴ㑻㸪ᮧᒣගᏹ㸪ᒣᮏ୍⮧㸪 ͆༢⣧୕⩼⣲㧗ᥭຊ⨨ᒎ㛤ᙧែࢆ⏝࠸ࡓ
CFDゎᯒࡢ⢭ᗘẚ㍑᳨
ドࡘ࠸࡚㸪 ͇➨
24ᅇᩘ್ὶయຊᏛࢩ࣏ࣥࢪ࣒࢘ண✏㞟
B6-4㸪2010㸬5) Murayama㸪 M.㸪 Yamamoto㸪 K.㸪 and Tanaka㸪 K.㸪 “CFD Comparison Study for Trapezoidal High-Lift Wing Configurations by Structured and Unstructured Mesh Method㸪” AIAA Paper 2011-0937㸪 Jan. 2011.
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ᅜ⏘᪑ᐈᶵࢳ࣮࣒㸪ᒣᮏ୍⮧([email protected])
◊✲ศᢸ⪅㸸୕⳻⯟✵ᶵᰴᘧ♫㸪๓⏣୍㑻([email protected])
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ィ⟬ࡢ┠ⓗ㧗㏿ᕠ⯟ᙧែཬࡧప㏿㧗ᥭຊ⨨ᙧែCFDゎᯒ⢭ᗘࡢ㢼Ὕヨ㦂ࡼࡿ᳨ド
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◊✲ࡢᴫせCFD㢼Ὕヨ㦂ࡢ┦ẚ㍑ࢆ㏻ࡌ㸪CFDࡢ⢭ᗘ᳨ドཬࡧ㢼Ὕヨ㦂ࡢቨ࣭ᨭᣢᖸ΅ຠᯝࡢ⿵ṇࢆ᳨ウࡋ㸪
ᐇᶵ㣕⾜⎔ቃ࡛ࡢ✵ຊ≉ᛶ᥎⟬ࢆᐇࡍࡿ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせᚑ᮶㸪ᕠ⯟Ⅼ㏆ഐ࡛ࡢࡳタィゎᯒసᴗ㐺⏝ྍ⬟࡛࠶ࡗࡓCFDゎᯒᢏ⾡ࢆ㸪つᶍ୪ิゎᯒ➼ࡼࡿ
㧗ᗘࡼࡾ㸪㞳㝣эୖ᪼эᕠ⯟эୗ㝆э╔㝣э╔㝣Ṇ࠸࠺⯟✵ᶵࡢ୍㐃ࡢ㐠⏝࣑ࢵࢩࣙࣥ㐺⏝
ྍ⬟ࡋ㸪ᶵ࣑ࢵࢩࣙࣥCFDゎᯒᢏ⾡ࢆ☜❧ࡋࡓ㸬
ᶵ࣑ࢵࢩࣙࣥCFDゎᯒ㢼Ὕヨ㦂⤖ᯝࡢ┦⿵ⓗ⏝ࡼࡾ㸪≉⇞㈝┤⤖ࡍࡿᕠ⯟✵ຊ
ᢠཬࡧ㸪㐠⾜Ᏻᛶ㧗ᥭຊ⨨ࡢ⡆⣲ࡼࡿ㍍㔞࣭ప⇞㈝㈉⊩ࡍࡿ㞳╔㝣ᛶ⬟㸦᭱ᥭຊಀ
ᩘཬࡧᥭᢠẚ㸧ࡘ࠸࡚㸪㣕⾜ヨ㦂๓ࡢ᭱⤊∧࡞ࡿᶵయᛶ⬟ィ⟬ࡢࡓࡵࡢ✵ຊ㺡㺼㺎㺞ࢆసᡂࡋࡓ㸬ྠᵝ
㸪ᮏゎᯒࢆ㐠⾜Ᏻᛶཬࡧᶵయࡢ㍍㔞㈉⊩ࡍࡿ㧗⢭ᗘ✵ຊⲴ㔜ண ࡶ㐺⏝ࡋ㸪Ⲵ㔜㺡㺼㺎㺞ࢆసᡂ ࡋࡓ㸬
ᅗ
1ᶵ࣑ࢵࢩࣙࣥ
CFD㻯㻲㻰 䛾ᑠᆺ᪑ᐈᶵタィ㐺⏝䛻㛵䛩䜛◊✲㻌
Application of CFD to Small Civil Aircraft Design
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ᅜ⏘᪑ᐈᶵࢳ࣮࣒㸪ᒣᮏ୍⮧ ([email protected])
◊✲ศᢸ⪅㸸ᕝᓮ㔜ᕤᴗᰴᘧ♫ ⯟✵Ᏹᐂ࢝ࣥࣃࢽ࣮ ᢏ⾡ᮏ㒊 ◊✲㒊 ✵ຊᢏ⾡ㄢ㸪
☾㇂⚽ ([email protected])
㉺ᬛ❶⏕ ([email protected]㸧
ୖ㔝㝧ு([email protected]㸧
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ィ⟬ࡢ┠ⓗ㠀ᐃᖖCFDࢆ⏝࠸࡚㧗ᥭຊ⨨ࡽⓎ⏕ࡍࡿ✵ຊ㦁㡢ࡢⓎ⏕࣓࢝ࢽࢬ࣒ࢆศᯒࡋ㸪㦁㡢ண ࣭పῶᢏ
⾡ࢆ⋓ᚓࡍࡿ㸬
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◊✲ࡢᴫせ⯟✵ᶵࡢᶵయ㦁㡢పῶྥࡅࠕ㦁㡢ண ᚲせ࡞ᐇ㦂ࢹ࣮ࢱࡢྲྀᚓࠖࠕゎᯒᢏ⾡ࡢ㛤Ⓨࠖࢆ⾜࠸ᶵ యࡽⓎ⏕ࡍࡿ✵ຊ㦁㡢ࡢண ᡭἲࢆ☜❧ࡍࡿ㸬
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ᖺᗘࡢ◊✲ᡂᯝࡢᴫせHLD㦁㡢ࡢ㡢※ࡢࡦࡘ࡛࠶ࡿࣇࣛࢵࣉ➃㦁㡢ࡢⓎ⏕࣓࢝ࢽࢬ࣒ࢆศᯒࡍࡿࡓࡵ㠀ᐃᖖCFDࢆᐇ
ࡋࡓ㸬ゎᯒᙧ≧ࡣJAXA㧗ᥭຊ⨨㦁㡢◊✲⏝㸱ḟඖ㸱⩼⣲ᶍᆺOTOMOࡋ㸪ゎᯒࢯࣝࣂࡣCflow 㸦ᕝ ᓮ㔜ᕤᴗ࡛㛤Ⓨ㸧ࢆ⏝࠸ࡓ㸬
ゎᯒࡼࡾࣇࣛࢵࣉ➃࡛Ⓨ⏕ࡍࡿ ࡢ⨨࣭ᙉᗘࡀ㛫ⓗኚࡋ࡚࠸ࡿᵝᏊࢆ☜ㄆࡋ㸪࿘Ἴᩘศᯒ㸪 㡢㡪ఏゎᯒࡼࡾὶࢀሙⓎ⏕㦁㡢ࡢ㛵ಀࢆ≉ᐃࡋࡓ㸬
ᅗ1 ࣇࣛࢵࣉ➃㒊ࡢ▐ὶࢀሙ ᕥᅗ 㸸X㍈᪉ྥ ᗘ➼್㠃࠾ࡼࡧ⾲㠃Cp
⯟✵ᶵᶵయ✵ຊ㦁㡢䛾పῶ䛸ண 䛻㛵䛩䜛◊✲㻌
Research of airframe noise reduction and estimation
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◊✲ࢢ࣮ࣝࣉ◊✲௦⾲⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ᅜ⏘᪑ᐈᶵࢳ࣮࣒㸪ᒣᮏ୍⮧([email protected])
◊✲ศᢸ⪅㸸⯟✵ࣉࣟࢢ࣒ࣛࢢ࣮ࣝࣉ ᅜ⏘᪑ᐈᶵࢳ࣮࣒㸪ᮧᒣගᏹ([email protected]) 㤳㒔Ꮫᮾி ࢩࢫࢸ࣒ࢹࢨࣥᏛ㒊 ⯟✵Ᏹᐂࢩࢫࢸ࣒ᕤᏛ㸪
㔠ᓮ㞞༤ ([email protected]) ᇰ⏣ ு([email protected])
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ィ⟬ࡢ┠ⓗᆅ㠃ຠᯝࡣ㸪⯟✵ᶵ࿘ࡾࡢὶࢀࡀᆅ㠃ࡢᙳ㡪ࢆཷࡅ㸪ᆅ㠃ࡢ࡞࠸ẚ࡚✵ຊᛶ⬟ࡀኚࡍࡿຠ
ᯝࡢࡇ࡛࠶ࡾ㸪⯟✵ᶵࡢ㞳Ⓨ╔ࡢᛶ⬟ࡶᙳ㡪ࡍࡿ⪃࠼ࡽࢀࡿ㸬ᮏ⏦ㄳࡼࡿ◊✲࡛ࡣ㸪ᩘ್ὶ యຊᏛࢆ⏝࠸࡚⯟✵ᶵࡲࢃࡾࡢᆅ㠃ຠᯝࡢᙳ㡪ࢆィ⟬ࡋ㸪ྠࡌᙧ≧ࢆ⏝࠸࡚JAXA࠾࠸࡚⾜ࢃࢀࡓ㢼 Ὕヨ㦂ࡢẚ㍑ࢆࡍࡿ㸬ࡲࡓ㸪ᚓࡽࢀࡓ⤖ᯝࡽ⯟✵ᶵࡲࢃࡾࡢᆅ㠃ຠᯝࡢ᳨ド㸪CFD࡛ࡢᆅ㠃ຠᯝ ࡢゎᯒࡢ᭷⏝ᛶࢆ⪃ᐹࡍࡿ㸬
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◊✲ࡢᴫせᮏ⏦ㄳ◊✲࡛ࡣONERA M5ᶍᆺᑐࡋ࡚㸪ᆅ㠃ࢆᶍࡋࡓእ㒊ቃ⏺ࢆ㏣ຍࡋࡓ࠺࠼࡛㸪TAS code
(Tohoku university Aerodynamic Simulation Code)ࢆ⏝࠸㸪㠀ᵓ㐀᱁Ꮚἲᇶ࡙࠸ࡓᅽ⦰ᛶ Navier-Stokes᪉⛬ᘧࢆゎ࠸ࡓ㸬㻌
ᖺᗘࡢ◊✲ᡂᯝࡢᴫせᮏ⏦ㄳࡼࡿᩘ್ィ⟬ࡼࡾ⯟✵ᶵ࿘ࡾ࠾ࡅࡿᆅ㠃ຠᯝࢆィ⟬ࡋ㸪㢼Ὕヨ㦂ࡢ⤖ᯝࡶྜࢃࡏ࡚㸪 ẚ㍑࣭⪃ᐹࡋࡓ㸬ᅗ2♧ࡍࡼ࠺ᆅ㠃㏆࠸ᥭຊഴᩳࡣቑຍࡍࡿഴྥࢆ♧ࡋ㸪⌮ㄽᩚྜࡍࡿࡀ ศࡗࡓ㸬ࡲࡓ㸪ప㏄ゅ࡛ࡢ✵ຊᛶ⬟ࡣ㢼Ὕヨ㦂ࡶⰋዲ୍⮴ࡍࡿࡶศࡗࡓ㸬ࡇ࠺ࡋࡓࡽᆅ 㠃ຠᯝࡢᙳ㡪ࢆCFD࡛ࡶ᥎⟬ࡍࡿࡀฟ᮶㸪」㞧ᐇᶵᙧ≧࿘ࡾࡢᆅ㠃ຠᯝࡢ᥎⟬ࡶ᭷⏝࡛࠶ࡿゝ
࠼ࡿ㸬୍᪉࡛㸪㢼Ὕヨ㦂࡛ࡣ㧗㏄ゅ࡛๓⦕ࡼࡾኻ㏿ࡋ࡚࠸ࡿࡢᑐࡋCFD࡛ࡣ␗࡞ࡿኻ㏿ࣃࢱ࣮ࣥࢆ♧
ࡍ⤖ᯝ࡞ࡗࡓ㸬ᚋࡣ㸪ࡇ࠺ࡋࡓᑐࡋ࡚㢼Ὕヨ㦂࠾ࡅࡿᨭᣢලᖸ΅ࡸHysteresis➼ࢆ⪃៖ࡍࡿ
࡞㢼Ὕヨ㦂᮲௳ࢆィ⟬ྜࢃࡏࡓୖ࡛ィ⟬ࡋ㸪ཎᅉࢆ᥈ࡿᚲせࡀ࠶ࡿ㸬
ᩘ್ィ⟬䛻䜘䜛⯟✵ᶵ࿘䜚䛻䛚䛡䜛ᆅ㠃ຠᯝ䛾᳨ド㻌
Numerical Study of Ground Effect around Aircraft using CFD
