PROPOSAL OF AN EVALUATION METHOD FOR NATURAL CROSS-VENTILATION PERFORMANCE CONSIDERING FLOW FLUCTUATION

㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࡢᥦ᱌

/(6/DUJH(GG\6LPXODWLRQ ࡟ࡼࡿఫᏯࡢ⮬↛᥮Ẽ࣭㏻㢼ᛶ≧࡟㛵ࡍࡿ◊✲ࠉࡑࡢ㸰

PROPOSAL OF AN EVALUATION METHOD FOR NATURAL CROSS-VENTILATION PERFORMANCE CONSIDERING FLOW FLUCTUATION

Study on naturally cross-ventilated house using large-eddy simulation(LES) part 2

᭷Ἴ⿱㈗

㉥ᯘఙ୍

ᐩỌ⚞⚽

ᆏཱྀ῟

㧗㔝ᗣኵ

ᮏ⏣⨾✑

Yuki ARINAMI, Shin-ichi AKABAYASHI, Yoshihide TOMINAGA, Jun SAKAGUCHI, Yasuo TAKANO, Miho HONDA

Keywords : Computational Fluid Dynamics, Large-Eddy Simulation(LES), Natural Cross-ventilation, Flow Fluctuation, Evaluation Method of Cross Ventilation Performance, Particle tracking

ᩘ್ὶయゎᯒ 㻔㻯㻲㻰㻕㻘㻌㻸㼍㼞㼓㼑㻙㻱㼐㼐㼥㻌㻿㼕㼙㼡㼘㼍㼠㼕㼛㼚㻌㻔㻸㻱㻿㻕㻘 ⮬↛㏻㢼 㻘㻌ኚືẼὶ 㻘 ㏻㢼ᛶ⬟ホ౯ᡭἲ 㻘 ⢏Ꮚ㏣㊧

ࠉࡣࡌࡵ࡟

ࠉᘓ≀ࡢ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ࡢホ౯࡟㛵ࡍࡿ◊✲࡛ࡣࠊ᥮Ẽ㥑ືຊ

࡜࡞ࡿእ㒊㢼ࡢ᫬㛫ⓗኚືࢆ⪃៖ࡋࡓᐇ⌧㇟࡟ࡼࡾ㏆࠸ᐇ㦂࣭ゎᯒ ᡭἲ࡛㏻㢼ᛶ⬟ࢆホ౯ࡍࡿࡇ࡜ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ

ࠉ᪤ ࡢ◊✲

^{㸯ࠊ㸰ࠊ㸱}

࡛ࡣࠊ୺࡟ 5$165D\QROGV $YHUDJHG 1DYLHU 6WRNHV 6LPXODWLRQ ࣔࢹࣝࢆ⏝࠸ࡓᩘ್ὶయゎᯒ &)' ࢆ⾜࠸ࠊ᫬

้ⓗኚ໬ࡀᆒࡉࢀࡓ࢔ࣥࢧࣥࣈࣝᖹᆒ್ࢆ⏝࠸ࡿࡇ࡜࡟ࡼࡗ࡚ࠊ㏻

㢼᫬࡟࠾ࡅࡿᘓ≀ࡢ᫬㛫ᖹᆒⓗ࡞ᐊෆእ㢼㏿ศᕸࠊ᥮Ẽ㔞ࡀ᫂ࡽ࠿

࡟ࡉࢀࠊᘓ≀ࡢ㏻㢼ᛶ⬟ホ౯ࡀ⾜ࢃࢀ࡚ࡁࡓࠋࡋ࠿ࡋࠊᐇ㝿ࡢ⎔ቃ

ୗ࡛ࡣࠊእ㒊㢼ྥ࣭㢼㏿࡟కࡗ࡚ᘓ≀࿘ᅖࡢẼὶሙࡀ⤯࠼ࡎኚ໬ࡋࠊ ᐊෆ㢼㏿ศᕸࡸ᥮Ẽ㔞ࡣ⤯࠼㛫࡞ࡃኚືࡍࡿࠋཪࠊ᫬㛫ᖹᆒⓗ࡞ゎ ᯒ࡛ࡣ㏻㢼ࡀᚓࡽࢀ࡞࠸㛤ཱྀ᮲௳ࡀᏑᅾࡍࡿࠋ౛࠼ࡤࠊ㢼ྥ࡟ᑐࡋ ᑐ⛠ⓗ࡞఩⨨࡟㸰⟠ᡤࡢ㛤ཱྀ㒊ࡀ࠶ࡿ㛤ཱྀ᮲௳࡛ࡣࠊὶయຊᏛࡢ⌮

ㄽୖࠊ᫬㛫ᖹᆒⓗ࡟ࡣ㛤ཱྀ㒊㛫ࡢᅽຊᕪࡀ⏕ࡌ࡞࠸ࡓࡵࠊ㢼㏿ኚື

ࢆ⪃៖ࡋ࡞࠸᫬㛫ᖹᆒⓗ࡞ᩘ್ゎᯒ࡛ࡣᐊෆ࡬ࡢẼὶࡢὶධ࣭ὶฟ ࡀ↓࠸ゎᯒ⤖ᯝࡀ⟬ฟࡉࢀࡿࠋࡋ࠿ࡋ㢼Ὕᐇ㦂࡛ࡣࠊ᥋㏆ὶࡢኚື

࡟ࡼࡾ୧㛤ཱྀ㒊㛫࡟▐᫬ⓗ࡞ᅽຊᕪࡀ⏕ࡌࠊ㛤ཱྀ㒊࠿ࡽᐊෆ࡬㏻㢼 Ẽὶࡀὶධ࣭ὶฟࡍࡿᵝᏊࡀほᐹࡉࢀ࡚࠸ࡿ

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ࠋ

ࠉ㏻㢼࡟ࡼࡿᐊෆࡢ㢼㏿ศᕸࡸ㏻㢼㔞ࡣࠊᮏ᮶ࠊ᫬㛫ⓗኚ໬ࡀ኱ࡁࡃ

⏕ࡌࡿせ⣲࡛࠶ࡾࠊ㏻㢼⌧㇟ࢆࡼࡾᐇែ࡟༶ࡋ࡚ᤊ࠼࡚㏻㢼࡟ࡼࡿᘓ

≀ࡢ᥮Ẽຠᯝࡢホ౯ࢆ⾜࠺ࡓࡵ࡟ࡣࠊ㢼㏿ࡢ᫬㛫ⓗኚືࢆゎᯒ࡛ࡁࡿ

5$16 ௨እࡢゎᯒࢆ⾜࠺ࡇ࡜ࡀᮃࡲࡋ࠸ࠋ▐᫬ⓗ࡞㏻㢼ᛶ≧ࢆྵࢇࡔ㏻

㢼ᛶ⬟ࡢホ౯ࢆ⾜࠺ࡓࡵ࡟ࡣࠊእ㒊㢼ࡢ㢼㏿ኚືࢆ⪃៖ࡋࡓ㠀ᐃᖖゎ ᯒᡭἲ࡟ࡼࡿ᪂ࡓ࡞⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࡀᚲせ࡛࠶ࡿࠋ ࠉ➹⪅ࡽࡣ๓ሗ㸦ࡑࡢ㸯

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࡟࠾࠸࡚ࠊ/DUJH(GG\6LPXODWLRQ ௨ୗ

/(6 ゎᯒࢆ⏝࠸࡚㢼Ὕᐇ㦂ࢆᶍᨃࡋࡓ༢⣧ఫᏯࣔࢹࣝࡢᐊෆእ㏻㢼 ᛶ≧ࡢゎᯒࢆ⾜࠸ࠊ᫬㛫ᖹᆒⓗ࡟ࡣ㛤ཱྀ㛫࡟ᅽຊᕪࡀ⏕ࡌࡎࠊ㏻㢼 ࡀᚓ࡟ࡃ࠸࡜ࡉࢀࡿ㛤ཱྀ᮲௳ࢆྵࢇࡔ㸳ࣃࢱ࣮ࣥࡢఫᏯࣔࢹࣝࢆᑐ

㇟࡟ὶධẼὶࡢ᫬㛫ⓗኚື࡟ࡼࡗ࡚▐᫬ⓗ࡟⏕ࡌࡿ㛤ཱྀ㛫ࡢᅽຊᕪ

࡟㉳ᅉࡍࡿ㏻㢼ᛶ≧ࢆᢕᥱࠊศᯒࡋࡓࠋ/(6 ゎᯒ⤖ᯝ࡛ࡣࠊ༢⣧ఫᏯ

ࣔࢹࣝࡢእቨ㠃࿘㎶࡛๤㞳ὶࡸ㏫ὶ➼ࡢ」㞧࡞Ẽὶሙࡀ෌⌧ࡉࢀࡿࠋ 㢼ྥ࡟ᑐࡋ࡚ᑐ⛠ⓗ࡞఩⨨࡟㛤ཱྀࢆ᭷ࡍࡿఫᏯࣔࢹࣝࢆᑐ㇟࡜ࡋࡓ ゎᯒ⤖ᯝ࡛ࡣࠊὶධẼὶࡢኚື࡟㉳ᅉࡍࡿ⮬↛᥮Ẽ࣭㏻㢼⌧㇟ࡀ෌

⌧ࡉࢀࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋཪࠊ/(6 ゎᯒ⤖ᯝ࡜ 3,9  ᐃ⤖ᯝ࡛ࡣࠊࣔ

ࢹࣝୖὶഃࡢᆅ⾲㠃௜㏆࡟ᙧᡂࡉࢀࡿ ཬࡧᒇ᰿㠃ࡢ๤㞳ᇦෆࡢ 

࡛኱ࡁࡉࠊ఩⨨࡜ࡶ࡟࡯ࡰ୍⮴ࡍࡿࠋ3,9  ᐃ⤖ᯝ࡜ /(6 ゎᯒ⤖ᯝࡣ

Assistant Prof., Graduate School of Science and Technology, Niigata University, Dr.Eng.

Prof., Graduate School of Science and Technology, Niigata University, Dr.Eng.

Prof., Department of Architecture and Building Engineering, Niigata Institute of Technology, Dr.Eng.

Prof., ISRD,University of Niigata Prefecture, Dr.Eng.

Ryoki Kogyo Co., Ltd., Dr.Eng.

Japan Railway Construction, Transport and Technology Agency, M. Eng.

(Former Graduate Student, Graduate School of Science and Technology, Niigata University)

᪂₲኱Ꮫ኱Ꮫ㝔⮬↛⛉Ꮫ◊✲⛉≉௵ຓᩍ࣭༤ኈ ᕤᏛ

᪂₲኱Ꮫ኱Ꮫ㝔⮬↛⛉Ꮫ◊✲⛉ᩍᤵ࣭ᕤᏛ༤ኈ

ࠉ᪂₲ᕤ⛉኱Ꮫᘓ⠏Ꮫ⛉ࠉᩍᤵ࣭༤ኈ ᕤᏛ

᪂₲┴❧኱Ꮫᅜ㝿ᆅᇦᏛ㒊ᅜ㝿ᆅᇦᏛ⛉ᩍᤵ࣭༤ኈ ᕤᏛ

⳻ᶵᕤᴗᰴᘧ఍♫᪂₲ᨭᗑࠉ༤ኈ ᕤᏛ

㕲㐨ᘓタ࣭㐠㍺᪋タᩚഛᨭ᥼ᶵᵓࠉಟኈ ᕤᏛ ࠉࠉ ᙜ᫬ࠉ᪂₲኱Ꮫ኱Ꮫ㝔⏕

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ᮏㄽᩥࡣ᪤Ⓨ⾲ᩥ⊩ ^㹼 ࡛ሗ࿌ࡋࡓࡶࡢ࡟ຍ➹࣭ಟṇࡋࠊ෌ᵓᡂࡋࡓࡶࡢ࡛࠶ࡿࠋ

㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࡢᥦ᱌

/(6/DUJH(GG\6LPXODWLRQ ࡟ࡼࡿఫᏯࡢ⮬↛᥮Ẽ࣭㏻㢼ᛶ≧࡟㛵ࡍࡿ◊✲ࠉࡑࡢ㸰

PROPOSAL OF AN EVALUATION METHOD FOR NATURAL CROSS-VENTILATION PERFORMANCE CONSIDERING FLOW FLUCTUATION

Study on naturally cross-ventilated house using large-eddy simulation(LES) part 2

᭷Ἴ⿱㈗

㉥ᯘఙ୍

ᐩỌ⚞⚽

ᆏཱྀ῟

㧗㔝ᗣኵ

ᮏ⏣⨾✑

Yuki ARINAMI, Shin-ichi AKABAYASHI, Yoshihide TOMINAGA, Jun SAKAGUCHI, Yasuo TAKANO, Miho HONDA

Keywords : Computational Fluid Dynamics, Large-Eddy Simulation(LES), Natural Cross-ventilation, Flow Fluctuation, Evaluation Method of Cross Ventilation Performance, Particle tracking

ᩘ್ὶయゎᯒ 㻔㻯㻲㻰㻕㻘㻌㻸㼍㼞㼓㼑㻙㻱㼐㼐㼥㻌㻿㼕㼙㼡㼘㼍㼠㼕㼛㼚㻌㻔㻸㻱㻿㻕㻘 ⮬↛㏻㢼 㻘㻌ኚືẼὶ 㻘 ㏻㢼ᛶ⬟ホ౯ᡭἲ 㻘 ⢏Ꮚ㏣㊧

ࠉࡣࡌࡵ࡟

ࠉᘓ≀ࡢ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ࡢホ౯࡟㛵ࡍࡿ◊✲࡛ࡣࠊ᥮Ẽ㥑ືຊ

࡜࡞ࡿእ㒊㢼ࡢ᫬㛫ⓗኚືࢆ⪃៖ࡋࡓᐇ⌧㇟࡟ࡼࡾ㏆࠸ᐇ㦂࣭ゎᯒ ᡭἲ࡛㏻㢼ᛶ⬟ࢆホ౯ࡍࡿࡇ࡜ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ

ࠉ᪤ ࡢ◊✲

^{㸯ࠊ㸰ࠊ㸱}

࡛ࡣࠊ୺࡟ 5$165D\QROGV $YHUDJHG 1DYLHU 6WRNHV 6LPXODWLRQ ࣔࢹࣝࢆ⏝࠸ࡓᩘ್ὶయゎᯒ &)' ࢆ⾜࠸ࠊ᫬

้ⓗኚ໬ࡀᆒࡉࢀࡓ࢔ࣥࢧࣥࣈࣝᖹᆒ್ࢆ⏝࠸ࡿࡇ࡜࡟ࡼࡗ࡚ࠊ㏻

㢼᫬࡟࠾ࡅࡿᘓ≀ࡢ᫬㛫ᖹᆒⓗ࡞ᐊෆእ㢼㏿ศᕸࠊ᥮Ẽ㔞ࡀ᫂ࡽ࠿

࡟ࡉࢀࠊᘓ≀ࡢ㏻㢼ᛶ⬟ホ౯ࡀ⾜ࢃࢀ࡚ࡁࡓࠋࡋ࠿ࡋࠊᐇ㝿ࡢ⎔ቃ

ୗ࡛ࡣࠊእ㒊㢼ྥ࣭㢼㏿࡟కࡗ࡚ᘓ≀࿘ᅖࡢẼὶሙࡀ⤯࠼ࡎኚ໬ࡋࠊ ᐊෆ㢼㏿ศᕸࡸ᥮Ẽ㔞ࡣ⤯࠼㛫࡞ࡃኚືࡍࡿࠋཪࠊ᫬㛫ᖹᆒⓗ࡞ゎ ᯒ࡛ࡣ㏻㢼ࡀᚓࡽࢀ࡞࠸㛤ཱྀ᮲௳ࡀᏑᅾࡍࡿࠋ౛࠼ࡤࠊ㢼ྥ࡟ᑐࡋ ᑐ⛠ⓗ࡞఩⨨࡟㸰⟠ᡤࡢ㛤ཱྀ㒊ࡀ࠶ࡿ㛤ཱྀ᮲௳࡛ࡣࠊὶయຊᏛࡢ⌮

ㄽୖࠊ᫬㛫ᖹᆒⓗ࡟ࡣ㛤ཱྀ㒊㛫ࡢᅽຊᕪࡀ⏕ࡌ࡞࠸ࡓࡵࠊ㢼㏿ኚື

ࢆ⪃៖ࡋ࡞࠸᫬㛫ᖹᆒⓗ࡞ᩘ್ゎᯒ࡛ࡣᐊෆ࡬ࡢẼὶࡢὶධ࣭ὶฟ ࡀ↓࠸ゎᯒ⤖ᯝࡀ⟬ฟࡉࢀࡿࠋࡋ࠿ࡋ㢼Ὕᐇ㦂࡛ࡣࠊ᥋㏆ὶࡢኚື

࡟ࡼࡾ୧㛤ཱྀ㒊㛫࡟▐᫬ⓗ࡞ᅽຊᕪࡀ⏕ࡌࠊ㛤ཱྀ㒊࠿ࡽᐊෆ࡬㏻㢼 Ẽὶࡀὶධ࣭ὶฟࡍࡿᵝᏊࡀほᐹࡉࢀ࡚࠸ࡿ

^㸲㸧

ࠋ

ࠉ㏻㢼࡟ࡼࡿᐊෆࡢ㢼㏿ศᕸࡸ㏻㢼㔞ࡣࠊᮏ᮶ࠊ᫬㛫ⓗኚ໬ࡀ኱ࡁࡃ

⏕ࡌࡿせ⣲࡛࠶ࡾࠊ㏻㢼⌧㇟ࢆࡼࡾᐇែ࡟༶ࡋ࡚ᤊ࠼࡚㏻㢼࡟ࡼࡿᘓ

≀ࡢ᥮Ẽຠᯝࡢホ౯ࢆ⾜࠺ࡓࡵ࡟ࡣࠊ㢼㏿ࡢ᫬㛫ⓗኚືࢆゎᯒ࡛ࡁࡿ

5$16 ௨እࡢゎᯒࢆ⾜࠺ࡇ࡜ࡀᮃࡲࡋ࠸ࠋ▐᫬ⓗ࡞㏻㢼ᛶ≧ࢆྵࢇࡔ㏻

㢼ᛶ⬟ࡢホ౯ࢆ⾜࠺ࡓࡵ࡟ࡣࠊእ㒊㢼ࡢ㢼㏿ኚືࢆ⪃៖ࡋࡓ㠀ᐃᖖゎ ᯒᡭἲ࡟ࡼࡿ᪂ࡓ࡞⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࡀᚲせ࡛࠶ࡿࠋ ࠉ➹⪅ࡽࡣ๓ሗ㸦ࡑࡢ㸯

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࡟࠾࠸࡚ࠊ/DUJH(GG\6LPXODWLRQ ௨ୗ

/(6 ゎᯒࢆ⏝࠸࡚㢼Ὕᐇ㦂ࢆᶍᨃࡋࡓ༢⣧ఫᏯࣔࢹࣝࡢᐊෆእ㏻㢼 ᛶ≧ࡢゎᯒࢆ⾜࠸ࠊ᫬㛫ᖹᆒⓗ࡟ࡣ㛤ཱྀ㛫࡟ᅽຊᕪࡀ⏕ࡌࡎࠊ㏻㢼 ࡀᚓ࡟ࡃ࠸࡜ࡉࢀࡿ㛤ཱྀ᮲௳ࢆྵࢇࡔ㸳ࣃࢱ࣮ࣥࡢఫᏯࣔࢹࣝࢆᑐ

㇟࡟ὶධẼὶࡢ᫬㛫ⓗኚື࡟ࡼࡗ࡚▐᫬ⓗ࡟⏕ࡌࡿ㛤ཱྀ㛫ࡢᅽຊᕪ

࡟㉳ᅉࡍࡿ㏻㢼ᛶ≧ࢆᢕᥱࠊศᯒࡋࡓࠋ/(6 ゎᯒ⤖ᯝ࡛ࡣࠊ༢⣧ఫᏯ

ࣔࢹࣝࡢእቨ㠃࿘㎶࡛๤㞳ὶࡸ㏫ὶ➼ࡢ」㞧࡞Ẽὶሙࡀ෌⌧ࡉࢀࡿࠋ 㢼ྥ࡟ᑐࡋ࡚ᑐ⛠ⓗ࡞఩⨨࡟㛤ཱྀࢆ᭷ࡍࡿఫᏯࣔࢹࣝࢆᑐ㇟࡜ࡋࡓ ゎᯒ⤖ᯝ࡛ࡣࠊὶධẼὶࡢኚື࡟㉳ᅉࡍࡿ⮬↛᥮Ẽ࣭㏻㢼⌧㇟ࡀ෌

⌧ࡉࢀࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋཪࠊ/(6 ゎᯒ⤖ᯝ࡜ 3,9  ᐃ⤖ᯝ࡛ࡣࠊࣔ

ࢹࣝୖὶഃࡢᆅ⾲㠃௜㏆࡟ᙧᡂࡉࢀࡿ ཬࡧᒇ᰿㠃ࡢ๤㞳ᇦෆࡢ 

࡛኱ࡁࡉࠊ఩⨨࡜ࡶ࡟࡯ࡰ୍⮴ࡍࡿࠋ3,9  ᐃ⤖ᯝ࡜ /(6 ゎᯒ⤖ᯝࡣ

Assistant Prof., Graduate School of Science and Technology, Niigata University, Dr.Eng.

Prof., Graduate School of Science and Technology, Niigata University, Dr.Eng.

Prof., Department of Architecture and Building Engineering, Niigata Institute of Technology, Dr.Eng.

Prof., ISRD,University of Niigata Prefecture, Dr.Eng.

Ryoki Kogyo Co., Ltd., Dr.Eng.

Japan Railway Construction, Transport and Technology Agency, M. Eng.

(Former Graduate Student, Graduate School of Science and Technology, Niigata University)

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ᮏㄽᩥࡣ᪤Ⓨ⾲ᩥ⊩ ^㹼 ࡛ሗ࿌ࡋࡓࡶࡢ࡟ຍ➹࣭ಟṇࡋࠊ෌ᵓᡂࡋࡓࡶࡢ࡛࠶ࡿࠋ

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PROPOSAL OF AN EVALUATION METHOD FOR NATURAL CROSS-VENTILATION PERFORMANCE CONSIDERING FLOW FLUCTUATION

Study on naturally cross-ventilated house using large-eddy simulation(LES) part 2

᭷Ἴ⿱㈗

㉥ᯘఙ୍

ᐩỌ⚞⚽

ᆏཱྀ῟

㧗㔝ᗣኵ

ᮏ⏣⨾✑

Yuki ARINAMI, Shin-ichi AKABAYASHI, Yoshihide TOMINAGA, Jun SAKAGUCHI, Yasuo TAKANO, Miho HONDA

Keywords : Computational Fluid Dynamics, Large-Eddy Simulation(LES), Natural Cross-ventilation, Flow Fluctuation, Evaluation Method of Cross Ventilation Performance, Particle tracking

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⌧ࡉࢀࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋཪࠊ/(6 ゎᯒ⤖ᯝ࡜ 3,9  ᐃ⤖ᯝ࡛ࡣࠊࣔ

ࢹࣝୖὶഃࡢᆅ⾲㠃௜㏆࡟ᙧᡂࡉࢀࡿ ཬࡧᒇ᰿㠃ࡢ๤㞳ᇦෆࡢ 

࡛኱ࡁࡉࠊ఩⨨࡜ࡶ࡟࡯ࡰ୍⮴ࡍࡿࠋ3,9  ᐃ⤖ᯝ࡜ /(6 ゎᯒ⤖ᯝࡣ

Assistant Prof., Graduate School of Science and Technology, Niigata University, Dr.Eng.

Prof., Graduate School of Science and Technology, Niigata University, Dr.Eng.

Prof., Department of Architecture and Building Engineering, Niigata Institute of Technology, Dr.Eng.

Prof., ISRD,University of Niigata Prefecture, Dr.Eng.

Ryoki Kogyo Co., Ltd., Dr.Eng.

Japan Railway Construction, Transport and Technology Agency, M. Eng.

(Former Graduate Student, Graduate School of Science and Technology, Niigata University)

᪂₲኱Ꮫ኱Ꮫ㝔⮬↛⛉Ꮫ◊✲⛉≉௵ຓᩍ࣭༤ኈ ᕤᏛ

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7KHGULYLQJIRUFHEHKLQGQDWXUDOFURVVYHQWLODWLRQLVRXWGRRUZLQG7KHLQGRRUDLUÀRZGLVWULEXWLRQDQGÀRZUDWHXQGHUFURVVYHQWLODWLRQYDU\JUHDWO\EHFDXVHWKH GLUHFWLRQDQGYHORFLW\RIZLQGFKDQJHVFRQVWDQWO\7KXVFURVVYHQWLODWLRQLVVDLGWREHDQXQVWHDG\ÀXLGSKHQRPHQD7KHUHIRUHUHSOLFDWLQJDFWXDOÀXLGSKHQRPHQD XVLQJFRPSXWDWLRQDOÀXLGG\QDPLFVLVYHU\LPSRUWDQWIRUHYDOXDWLQJWKHXQVWHDG\FURVVYHQWLODWLRQSHUIRUPDQFHVRIKRXVHV5HFHQWO\XQVWHDG\ÀXLGSKHQRPHQD KDYHEHHQDQDO\]HGE\XVLQJODUJHHGG\VLPXODWLRQ,QWKLVVWXG\DQHZHYDOXDWLRQPHWKRGWKDWFRQVLGHUVÀRZÀXFWXDWLRQIRUQDWXUDOFURVVYHQWLODWLRQLVSURSRVHG According to this method, particles are released at openings and the ratio of particles arriving at the evaluation area of a house model is calculated. The method sets inner half part over the central plane of the model as the evaluation area to exclude short circuit phenomena. Ratio of particles entering into the model, ratio of particles arriving at the evaluation area, effective ventilation rate and effective ventilation ratio are analyzed for the simple house model. The evaluation results for the performance of this unsteady natural cross-ventilation model are reported.

ᮏㄽᩥࡣ᪤Ⓨ⾲ᩥ⊩ ^㹼 ࡛ሗ࿌ࡋࡓࡶࡢ࡟ຍ➹࣭ಟṇࡋࠊ෌ᵓᡂࡋࡓࡶࡢ࡛࠶ࡿࠋ

風速変動を考慮した自然換気・通風性能評価手法の提案

LES（Large-Eddy Simulation）による住宅の自然換気・通風性状に関する研究　その２ PROPOSAL OF AN EVALUATION METHOD FOR NATURAL CROSS-VENTILATION

PERFORMANCE CONSIDERING FLOW FLUCTUATION Study on naturally cross-ventilated house using large-eddy simulation(LES) part 2

有 波 裕 貴

^＊

，赤 林 伸 一

^＊＊

，富 永 禎 秀

^＊＊＊

， 坂 口 　 淳

^＊＊＊＊

，高 野 康 夫

^{＊＊＊＊＊}

，本 田 美 穂

^{＊＊＊＊＊＊}

Yuki ARINAMI, Shin-ichi AKABAYASHI, Yoshihide TOMINAGA, Jun SAKAGUCHI, Yasuo TAKANO and Miho HONDA

　　　　　＊

　 新潟大学大学院自然科学研究科　特任助教・博士（工学）

　　　　＊＊

　 新潟大学大学院自然科学研究科　教授・工博

　　　＊＊＊

　 新潟工科大学建築学科　教授・博士（工学）

　　＊＊＊＊

　 新潟県立大学国際地域学部国際地域学科　教授・博士（工学）

　＊＊＊＊＊

　 菱機工業㈱新潟支店　博士（工学）

＊＊＊＊＊＊

　 鉄道建設・運輸施設整備支援機構　修士（工学）

（当時　新潟大学大学院生）

Assist. Prof., Graduate School of Science and Technology, Niigata University, Dr.Eng.

Prof., Graduate School of Science and Technology, Niigata University, Dr.Eng.

Prof., Dept. of Architecture and Building Engineering, Niigata Institute of Technology, Dr.Eng.

Prof., ISRD, University of Niigata Prefecture, Dr.Eng.

Ryoki Kogyo Co., Ltd., Dr.Eng.

Japan Railway Construction, Transport and Technology Agency, M.Eng.

(Former Grad. Stud., Graduate School of Science and Technology, Niigata University)

本論文は既発表文献^{*1）～ *5）}で報告したものに加筆・修正し，再構成したものである。

日本建築学会環境系論文集 第81巻 第725号，589-597， 2016年7月 J. Environ. Eng., AIJ, Vol. 81 No. 725, 589-597, Jul., 2016 DOI http://doi.org/10.3130/aije.81.589

【カテゴリーⅠ】

ᐃᛶⓗ࡟ᴫࡡ୍⮴ࡋ࡚࠾ࡾࠊᮏ◊✲ࡢ /(6 ゎᯒ࡛ࡣὶࢀሙࡢᇶᮏⓗ

ᵓ㐀ࢆ෌⌧࡛ࡁ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ

ࠉᮏሗ࡛ࡣࠊ㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ࢆ⾜࠺ᡭ ἲࢆ᪂ࡓ࡟㛤Ⓨ࣭ᥦ᱌ࡍࡿࠋ᭦࡟๓ሗ࡛ሗ࿌ࡋࡓ /(6 ゎᯒ⤖ᯝࢆᑐ

㇟࡜ࡋ࡚ࠊ᪂ࡓ࡟㛤Ⓨࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲ࡟ࡼࡾࠊ㠀 ᐃᖖⓗ࡞㢼㏿ኚື࡟ࡼࡗ࡚⏕ࡌࡿఫᏯࡢ⮬↛᥮Ẽ࣭㏻㢼⌧㇟࡟ࡼࡿ

᥮Ẽຠᯝࢆᐃ㔞ⓗ࡟ホ౯ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ

ࠉ㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࡢᴫせ ࠉホ౯ᑐ㇟ࡢ༢⣧ఫᏯࣔࢹࣝ

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࡝ࡢࣔࢹࣝ࡟࠾࠸࡚ࡶ㛤ཱྀ㧗ࡉࡣᆅ⾲㠃࠿ࡽ PP ࡢ఩⨨㸦ᘓ≀㧗 ࡉࡢ୰ᚰ㸧࡟タᐃࡍࡿࠋᑐྥࡍࡿቨ㠃࡟୍࠿ᡤࡎࡘ㛤ཱྀࢆ᭷ࡍࡿሙ

ྜ㸦&DVH㸪&DVH㸧ࡣࠊቨ㠃ࡢ୰ᚰ࡟㛤ཱྀࢆタࡅࡿࠋྠ୍ቨ㠃࡟஧

⟠ᡤࡢ㛤ཱྀࢆ᭷ࡍࡿሙྜ &DVH 㹼 ࡢ㛤ཱྀ㛫㛫㝸ࡣ PP ࡜ࡍࡿࠋ ࠉ/(6 ゎᯒ᮲௳ཬࡧ㠀ᐃᖖᩘ್ὶయゎᯒ⤖ᯝ

ࠉ7DEOH ࡟ /(6 ゎᯒࡢゎᯒ᮲௳ࢆࠊ)LJ ࡟ゎᯒ㡿ᇦࢆ♧ࡍࠋᮏ

◊✲ࡢᩘ್ὶయゎᯒ࡟౑⏝ࡍࡿࢯࣇࢺ࢚࢘࢔ࡣỗ⏝ᩘ್ὶయゎᯒ ࢯ ࣇ ࢺ 675($0 YHU㸦 ओ ࢯ ࣇ ࢺ ࢘ ࢙ ࢔ ࢡ ࣞ ࢖ ࢻ ࣝ 㸧 ࡛ ࠶ ࡿࠋ ゎ ᯒ 㡿 ᇦ ࡣ 㢼 Ὕ ࢆ ᶍ ᨃ ࡋࠊPP㸦 㛗 ࡉ 㸧 ™ PP㸦 㧗 ࡉ 㸧 ™ PP㸦ᖜ㸧࡛࠶ࡿࠋὶධኚືẼὶࡣࠊὶධࣉࣟࣇ࢓࢖ࣝࡀ

஌๎㸦8 ҃ =

㸧࡜࡯ࡰ୍⮴ࡍࡿࡼ࠺࡟ࠊࢻࣛ࢖ࣂ࣮㡿ᇦࢆ⏝࠸ࡿ

ᡭἲ

^㸧

ࢆ᥇⏝ࡋసᡂࡋࡓࠋヲ⣽࡞ゎᯒ᮲௳ࡣ๓ሗࢆཧ↷ࡉࢀࡓ࠸ࠋ ࠉ)LJD 㹼 H ࡟౑⏝ࡍࡿ /(6 ゎᯒ⤖ᯝ㸦▐᫬ᐊෆእὶ㏿࣋ࢡࢺࣝ

ศᕸ

ࢆ♧ࡍࠋ)LJ ࡣ๓ሗ ࡑࡢ㸯

^㸧

࡟࠾࠸࡚ /(6 ゎᯒࢆ⾜ࡗࡓ

⤖ᯝࡢᘬ⏝࡛࠶ࡿࠋ/(6 ゎᯒ⤖ᯝࡣࣔࢹࣝ୰ᚰࡢỈᖹ᩿㠃࡛࠶ࡾࠊᅗ୰

ࡢ㢼㏿ࡣᇶ‽㢼㏿ PVࠊ㧗ࡉ P ࡟ࡼࡾ㢼㏿ẚ࡜ࡋ࡚♧ࡍࠋᅗࢱ

࢖ࢺࣝ୰ࡢ᫬้ W ࡣゎᯒ㛤ጞ᫬้ࢆ W 㸻 >V@ ࡜ࡋࡓゎᯒ⤒㐣᫬㛫ࢆ♧

ࡍࠋ/(6 ゎᯒ⤖ᯝ࡛ࡣࠊఫᏯࣔࢹࣝእቨ㠃௜㏆࡛ࡢ๤㞳ὶࠊ㏫ὶࡸࣔࢹ

ࣝᐊෆ࡟࠾ࡅࡿὶධẼὶࡢ᣺ືࡀ෌⌧ࡉࢀ࡚࠸ࡿࠋࡲࡓ㢼ྥ࡟ᑐࡋ࡚

ᑐ⛠఩⨨࡟㛤ཱྀࢆ᭷ࡍࡿ᮲௳࡛ࡣࠊ5$16 ゎᯒ࡞࡝ࡢᐃᖖᩘ್ゎᯒ࡛ࡣ ᚓࡽࢀ࡞࠸ࠊእ㒊㢼ࡢ㢼㏿ኚື࡟ࡼࡗ࡚⏕ࡌࡿ㛤ཱྀ㛫ࡢᅽຊᕪ࡟㉳ᅉ ࡍࡿ᥮Ẽ⌧㇟ࡶ෌⌧ࡉࢀ࡚࠸ࡿࠋ3,9㸦3DUWLFOH ,PDJH 9HORFLPHWU\㸧

࡟ࡼࡿ㢼Ὕᐇ㦂 ᐃ⤖ᯝ࡜ẚ㍑ࡋ࡚ࡶࠊὶࢀሙࡢᇶᮏᵓ㐀ࡀ෌⌧࡛ࡁ

࡚࠾ࡾᐃᛶⓗ࡟୍⮴ࡋ࡚࠸ࡿࠋᮏሗ ࡑࡢ㸰 ࡛ࡣࡇࢀࡽࡢ /(6 ゎᯒ⤖

ᯝࢆ⏝࠸ࠊ᪂ࡓ࡞⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࢆ᳨ウࡍࡿࠋ

ࠉ㢼㏿ኚື࡟ࡼࡿ⮬↛᥮Ẽ࣭㏻㢼⌧㇟ࢆホ౯ࡍࡿୖ࡛᪤ ࡢ᥮Ẽ ᛶ⬟ホ౯ᡭἲࢆ⏝࠸ࡓሙྜࡢၥ㢟Ⅼ

ࠉ᪤ ࡢ᥮Ẽᛶ⬟ࡢホ౯ᡭἲ࡜ࡋ࡚ࡣࠊ኱ࡁࡃศࡅ࡚஧✀㢮ࡢᣦᶆ ࡀᏑᅾࡍࡿࠋ୍ࡘࡣ௵ពࡢ࠶ࡿⅬ࡟࠾ࡅࡿ⃰ᗘᛂ⟅ࡢ᫬㛫✚ศ࡟ࡼࡗ

࡚ᐊෆ᥮Ẽᛶ⬟ࢆホ౯ࡍࡿ✵Ẽ㱋ࡸ✵Ẽవ࿨➼

^ࠊ㸧

ࠊࡶ࠺୍ࡘࡣᐊ ෆࡢ௵ពࡢ㡿ᇦ࡛Ⓨ⏕ࡉࡏࡓࢺ࣮ࣞࢧ ởᰁ㉁ ࡢ㝖ཤຠ⋡࡟ࡼࡾ

⟬ฟࡉࢀࡿ᤼ฟ᥮Ẽ㔞ࢆᣦᶆ࡜ࡍࡿࡶࡢ࡛࠶ࡿࠋ

)LJ6FKHPDWLFYLHZRIVLPSOHKRXVHPRGHO

㻹㼛㼐㼑㼘㻌㻭㻙㻝 㻹㼛㼐㼑㼘㻌㻭㻙㻞

㻹㼛㼐㼑㼘㻌㻮㻙㻝 㻹㼛㼐㼑㼘㻌㻮㻙㻞 㻹㼛㼐㼑㼘㻌㻮㻙㻟

)LJ&RPSXWDWLRQDOGRPDLQDQGJULGV D+RUL]RQWDOVHFWLRQ

E9HUWLFDOVHFWLRQ

Unit:[mm]

Driver region House model

900

x y

Wind Direction

Driver region

House model

x z

Wind Direction Opening ϸ

300 300

40 40 40 40

Opening Ϲ Opening Ϲ

300 300

40 40

40 40 Opening ϸ Opening ϸ

300 300

40 40

OpeningϹ

Unit:[mm]

x

z y

Wind direction

300 300

40 40

Opening ϸ

Opening Ϲ

300 300

4040

Opening ϸ 40 Opening Ϲ

40

7DEOH&RPSXWDWLRQDOFRQGLWLRQV

SGS model Analysis region Size of house model

Opening Area

Inflow

Out flow

Side,Top Free slip

Ground Building wall Pre-analysis

Main analysis ǻW

Minimum grid size Number of grids

Dynamic Smagorinsky model x=7.8, y=1.8, z=1.8[m]

x=0.3, y=0.3, z=0.3[m]

0.04×0.04䠙0.0016[m²]

Boundary condition

Instantaneous wind velocity components (u,v,w) are produced by driver region calculation (U䌱Z^1/4, reference wind velocity =5.0[m/s], reference

height=1000[mm]) Zero gradient

Wall Boundary Three layer model of Werner-Wengle wall functions

0.005[m]

210(x)×148(y)×117(z)䠙3,636,360

Analysis time 2.6[sec]

10.0[sec]

0.00001[sec]

7DEOH&DVHVDQDO\]HG

case House Model Positions of openings case1 Model A-1 the windward and leeward walls case2 Model A-2 the opposite walls parallel to the wind

direction

case3 Model B-1 the windward wall

case4 Model B-2 the leeward wall

case5 Model B-3 the wall parallel to the wind direction

ᐃᛶⓗ࡟ᴫࡡ୍⮴ࡋ࡚࠾ࡾࠊᮏ◊✲ࡢ /(6 ゎᯒ࡛ࡣὶࢀሙࡢᇶᮏⓗ

ᵓ㐀ࢆ෌⌧࡛ࡁ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ

ࠉᮏሗ࡛ࡣࠊ㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ࢆ⾜࠺ᡭ ἲࢆ᪂ࡓ࡟㛤Ⓨ࣭ᥦ᱌ࡍࡿࠋ᭦࡟๓ሗ࡛ሗ࿌ࡋࡓ /(6 ゎᯒ⤖ᯝࢆᑐ

㇟࡜ࡋ࡚ࠊ᪂ࡓ࡟㛤Ⓨࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲ࡟ࡼࡾࠊ㠀 ᐃᖖⓗ࡞㢼㏿ኚື࡟ࡼࡗ࡚⏕ࡌࡿఫᏯࡢ⮬↛᥮Ẽ࣭㏻㢼⌧㇟࡟ࡼࡿ

᥮Ẽຠᯝࢆᐃ㔞ⓗ࡟ホ౯ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ

ࠉ㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࡢᴫせ ࠉホ౯ᑐ㇟ࡢ༢⣧ఫᏯࣔࢹࣝ

ࠉ)LJ ࡟ホ౯ᑐ㇟ࡢ༢⣧ఫᏯࣔࢹࣝࡢᴫせࠊ7DEOH ࡟ /(6 ゎᯒࡢ ゎᯒ &DVH ࢆ♧ࡍࠋゎᯒᑐ㇟ࡢఫᏯࣔࢹࣝࡣࠊ୍㎶ࡀ PP ࡢ❧᪉య

࡛࠶ࡾࠊPP㸦㧗ࡉ㸧™ PP㸦ᖜ㸧ࡢ㛤ཱྀࢆࡑࢀࡒࢀ㸰⟠ᡤ᭷ࡍࡿࠋ

࡝ࡢࣔࢹࣝ࡟࠾࠸࡚ࡶ㛤ཱྀ㧗ࡉࡣᆅ⾲㠃࠿ࡽ PP ࡢ఩⨨㸦ᘓ≀㧗 ࡉࡢ୰ᚰ㸧࡟タᐃࡍࡿࠋᑐྥࡍࡿቨ㠃࡟୍࠿ᡤࡎࡘ㛤ཱྀࢆ᭷ࡍࡿሙ

ྜ㸦&DVH㸪&DVH㸧ࡣࠊቨ㠃ࡢ୰ᚰ࡟㛤ཱྀࢆタࡅࡿࠋྠ୍ቨ㠃࡟஧

⟠ᡤࡢ㛤ཱྀࢆ᭷ࡍࡿሙྜ &DVH 㹼 ࡢ㛤ཱྀ㛫㛫㝸ࡣ PP ࡜ࡍࡿࠋ ࠉ/(6 ゎᯒ᮲௳ཬࡧ㠀ᐃᖖᩘ್ὶయゎᯒ⤖ᯝ

ࠉ7DEOH ࡟ /(6 ゎᯒࡢゎᯒ᮲௳ࢆࠊ)LJ ࡟ゎᯒ㡿ᇦࢆ♧ࡍࠋᮏ

◊✲ࡢᩘ್ὶయゎᯒ࡟౑⏝ࡍࡿࢯࣇࢺ࢚࢘࢔ࡣỗ⏝ᩘ್ὶయゎᯒ ࢯ ࣇ ࢺ 675($0 YHU㸦 ओ ࢯ ࣇ ࢺ ࢘ ࢙ ࢔ ࢡ ࣞ ࢖ ࢻ ࣝ 㸧 ࡛ ࠶ ࡿࠋ ゎ ᯒ 㡿 ᇦ ࡣ 㢼 Ὕ ࢆ ᶍ ᨃ ࡋࠊPP㸦 㛗 ࡉ 㸧 ™ PP㸦 㧗 ࡉ 㸧 ™ PP㸦ᖜ㸧࡛࠶ࡿࠋὶධኚືẼὶࡣࠊὶධࣉࣟࣇ࢓࢖ࣝࡀ

஌๎㸦8 ҃ =

㸧࡜࡯ࡰ୍⮴ࡍࡿࡼ࠺࡟ࠊࢻࣛ࢖ࣂ࣮㡿ᇦࢆ⏝࠸ࡿ

ᡭἲ

^㸧

ࢆ᥇⏝ࡋసᡂࡋࡓࠋヲ⣽࡞ゎᯒ᮲௳ࡣ๓ሗࢆཧ↷ࡉࢀࡓ࠸ࠋ ࠉ)LJD 㹼 H ࡟౑⏝ࡍࡿ /(6 ゎᯒ⤖ᯝ㸦▐᫬ᐊෆእὶ㏿࣋ࢡࢺࣝ

ศᕸ

ࢆ♧ࡍࠋ)LJ ࡣ๓ሗ ࡑࡢ㸯

^㸧

࡟࠾࠸࡚ /(6 ゎᯒࢆ⾜ࡗࡓ

⤖ᯝࡢᘬ⏝࡛࠶ࡿࠋ/(6 ゎᯒ⤖ᯝࡣࣔࢹࣝ୰ᚰࡢỈᖹ᩿㠃࡛࠶ࡾࠊᅗ୰

ࡢ㢼㏿ࡣᇶ‽㢼㏿ PVࠊ㧗ࡉ P ࡟ࡼࡾ㢼㏿ẚ࡜ࡋ࡚♧ࡍࠋᅗࢱ

࢖ࢺࣝ୰ࡢ᫬้ W ࡣゎᯒ㛤ጞ᫬้ࢆ W 㸻 >V@ ࡜ࡋࡓゎᯒ⤒㐣᫬㛫ࢆ♧

ࡍࠋ/(6 ゎᯒ⤖ᯝ࡛ࡣࠊఫᏯࣔࢹࣝእቨ㠃௜㏆࡛ࡢ๤㞳ὶࠊ㏫ὶࡸࣔࢹ

ࣝᐊෆ࡟࠾ࡅࡿὶධẼὶࡢ᣺ືࡀ෌⌧ࡉࢀ࡚࠸ࡿࠋࡲࡓ㢼ྥ࡟ᑐࡋ࡚

ᑐ⛠఩⨨࡟㛤ཱྀࢆ᭷ࡍࡿ᮲௳࡛ࡣࠊ5$16 ゎᯒ࡞࡝ࡢᐃᖖᩘ್ゎᯒ࡛ࡣ ᚓࡽࢀ࡞࠸ࠊእ㒊㢼ࡢ㢼㏿ኚື࡟ࡼࡗ࡚⏕ࡌࡿ㛤ཱྀ㛫ࡢᅽຊᕪ࡟㉳ᅉ ࡍࡿ᥮Ẽ⌧㇟ࡶ෌⌧ࡉࢀ࡚࠸ࡿࠋ3,9㸦3DUWLFOH ,PDJH 9HORFLPHWU\㸧

࡟ࡼࡿ㢼Ὕᐇ㦂 ᐃ⤖ᯝ࡜ẚ㍑ࡋ࡚ࡶࠊὶࢀሙࡢᇶᮏᵓ㐀ࡀ෌⌧࡛ࡁ

࡚࠾ࡾᐃᛶⓗ࡟୍⮴ࡋ࡚࠸ࡿࠋᮏሗ ࡑࡢ㸰 ࡛ࡣࡇࢀࡽࡢ /(6 ゎᯒ⤖

ᯝࢆ⏝࠸ࠊ᪂ࡓ࡞⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࢆ᳨ウࡍࡿࠋ

ࠉ㢼㏿ኚື࡟ࡼࡿ⮬↛᥮Ẽ࣭㏻㢼⌧㇟ࢆホ౯ࡍࡿୖ࡛᪤ ࡢ᥮Ẽ ᛶ⬟ホ౯ᡭἲࢆ⏝࠸ࡓሙྜࡢၥ㢟Ⅼ

ࠉ᪤ ࡢ᥮Ẽᛶ⬟ࡢホ౯ᡭἲ࡜ࡋ࡚ࡣࠊ኱ࡁࡃศࡅ࡚஧✀㢮ࡢᣦᶆ ࡀᏑᅾࡍࡿࠋ୍ࡘࡣ௵ពࡢ࠶ࡿⅬ࡟࠾ࡅࡿ⃰ᗘᛂ⟅ࡢ᫬㛫✚ศ࡟ࡼࡗ

࡚ᐊෆ᥮Ẽᛶ⬟ࢆホ౯ࡍࡿ✵Ẽ㱋ࡸ✵Ẽవ࿨➼

^ࠊ㸧

ࠊࡶ࠺୍ࡘࡣᐊ ෆࡢ௵ពࡢ㡿ᇦ࡛Ⓨ⏕ࡉࡏࡓࢺ࣮ࣞࢧ ởᰁ㉁ ࡢ㝖ཤຠ⋡࡟ࡼࡾ

⟬ฟࡉࢀࡿ᤼ฟ᥮Ẽ㔞ࢆᣦᶆ࡜ࡍࡿࡶࡢ࡛࠶ࡿࠋ

)LJ6FKHPDWLFYLHZRIVLPSOHKRXVHPRGHO

㻹㼛㼐㼑㼘㻌㻭㻙㻝 㻹㼛㼐㼑㼘㻌㻭㻙㻞

㻹㼛㼐㼑㼘㻌㻮㻙㻝 㻹㼛㼐㼑㼘㻌㻮㻙㻞 㻹㼛㼐㼑㼘㻌㻮㻙㻟

)LJ&RPSXWDWLRQDOGRPDLQDQGJULGV D+RUL]RQWDOVHFWLRQ

E9HUWLFDOVHFWLRQ

Unit:[mm]

Driver region House model

900

x y

Wind Direction

Driver region

House model

x z

Wind Direction Opening ϸ

300 300

40 40 40 40

Opening Ϲ Opening Ϲ

300 300

40 40

40 40 Opening ϸ Opening ϸ

300 300

40 40

OpeningϹ

Unit:[mm]

x

z y

Wind direction

300 300

40 40

Opening ϸ

Opening Ϲ

300 300

4040

Opening ϸ 40 Opening Ϲ

40

7DEOH&RPSXWDWLRQDOFRQGLWLRQV

SGS model Analysis region Size of house model

Opening Area

Inflow

Out flow

Side,Top Free slip

Ground Building wall Pre-analysis

Main analysis ǻW

Minimum grid size Number of grids

Dynamic Smagorinsky model x=7.8, y=1.8, z=1.8[m]

x=0.3, y=0.3, z=0.3[m]

0.04×0.04䠙0.0016[m²]

Boundary condition

Instantaneous wind velocity components (u,v,w) are produced by driver region calculation (U䌱Z^1/4, reference wind velocity =5.0[m/s], reference

height=1000[mm]) Zero gradient

Wall Boundary Three layer model of Werner-Wengle wall functions

0.005[m]

210(x)×148(y)×117(z)䠙3,636,360

Analysis time 2.6[sec]

10.0[sec]

0.00001[sec]

7DEOH&DVHVDQDO\]HG

case House Model Positions of openings case1 Model A-1 the windward and leeward walls case2 Model A-2 the opposite walls parallel to the wind

direction

case3 Model B-1 the windward wall

case4 Model B-2 the leeward wall

case5 Model B-3 the wall parallel to the wind direction

ࠉ✵Ẽ㱋ࡣᶵᲔ᥮Ẽタഛ࡞࡝࡟ࡼࡾࠊὶධ㛤ཱྀ ⤥Ẽཱྀ ࡜ὶฟ㛤

ཱྀ ᤼Ẽཱྀ ࡢ┦ᑐⓗ࡞఩⨨㛵ಀࡀẚ㍑ⓗᏳᐃࡋ࡚࠸ࡿὶࢀࡢᵓ㐀

ࢆᣢࡘ✵㛫ࢆᑐ㇟࡜ࡋࡓ᥮Ẽᛶ⬟ホ౯ᣦᶆ࡜ࡋ࡚ከࡃ⏝࠸ࡽࢀ࡚࠸

ࡿࠋࡋ࠿ࡋࠊᮏሗࡢ &DVHࠊ&DVHࠊ&DVH ࡞࡝ࡢᵝ࡟ࠊ᫬㛫ⓗ࡟ὶ ධ࣭ὶฟ㛤ཱྀࡢ఩⨨㛵ಀࡀኚ໬ࡍࡿ⮬↛᥮Ẽ࣭㏻㢼᫬ࡢ㛤ཱྀ᮲௳࡛

ࡣࠊὶࢀሙࡢᵓ㐀ࡀ᫬㛫ⓗ࡟኱ࡁࡃኚ໬ࡋࠊྛⅬࡢ⃰ᗘᛂ⟅ࡀ᫬㛫

ⓗ࡟ኚືࡋ⥆ࡅࡿࠋࡇࡢᵝ࡞᮲௳ୗ࡛ࡣホ౯᫬㛫ࢆ༑ศ㛗ࡃタᐃࡋ ࡓሙྜ࡛ࡶࠊ✵Ẽ㱋ࡀ୍ᐃࡢ್࡟ᐃࡲࡽࡎࠊ࠶ࡿᖜࢆᣢࡗࡓ್࡛ኚ

ືࡋ⥆ࡅࡿ࡜᥎ᐹࡉࢀࠊ⟬ฟࡉࢀࡓ✵Ẽ㱋ࢆ᥮Ẽᛶ⬟ホ౯ᣦᶆ࡜ࡋ

࡚ゎ㔘ࡍࡿࡇ࡜ࡀᅔ㞴࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋࡇࡢࡓࡵࠊ⃰ᗘᛂ⟅ࡢ

᫬㛫✚ศ࡟ᇶ࡙ࡃ᥮Ẽᛶ⬟ホ౯ᣦᶆ࡛ࡣࠊ㢼㏿ኚື࡟ࡼࡿ⮬↛᥮Ẽ࣭

㏻㢼ᛶ⬟ࢆホ౯ࡍࡿࡓࡵ࡟ࡣ୙༑ศ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ

ࠉ୍᪉ࠊởᰁ㉁㝖ཤຠ⋡࡞࡝⃰ᗘศᕸ࡟ᇶ࡙ࡃ᥮Ẽᛶ⬟ホ౯᪉ἲ࡛ࡣࠊ ὶࢀሙࡢᵓ㐀ࡀ᫬㛫ⓗ࡟ኚ໬ࡍࡿሙྜ࡛ࡶࠊ᥮Ẽホ౯᫬㛫ࢆ༑ศ࡟㛗 ࡃࡍࡿࡇ࡜࡛㠀ᐃᖖⓗ࡞⮬↛᥮Ẽ࣭㏻㢼⌧㇟࡟ࡼࡿ᤼ฟ᥮Ẽ㔞ࢆ⟬ฟ ࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋཪࠊࡇࡢᡭἲ࡛ࡣởᰁ㉁Ⓨ⏕㡿ᇦࢆᒁᡤⓗ࡟

タᐃࡍࡿࡇ࡜࡛ࠊὶධẼὶࡢࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺࢆ⪃៖ࡋ࡚᥮Ẽᛶ⬟

ホ౯ࢆ⾜࠺ࡇ࡜ࡀྍ⬟࡜࡞ࡿሙྜࡀ࠶ࡿࠋ౛࠼ࡤࠊᮏ◊✲ࡢ &DVHࠊ

&DVHࠊ&DVH ࡟࠾࠸࡚㛤ཱྀ࠿ࡽ㞳ࢀࡓᒁᡤ㡿ᇦ࡛ࢺ࣮ࣞࢧ ởᰁ㉁➼㸧

ࢆⓎ⏕ࡉࡏࠊࡑࡢ㝖ཤຠ⋡ࢆồࡵࡿࡇ࡜࡟ࡼࡾࠊὶධẼὶࡀ༑ศ࡟ᐊ ෆ࡟฿㐩ࡏࡎࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺࡍࡿሙྜࢆ⪃៖ࡋࡓ᥮Ẽᛶ⬟ホ౯ࢆ

⾜࠺ࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋࡋ࠿ࡋࠊ&DVH ࡢሙྜࠊởᰁ㉁㝖ཤຠ⋡࡟ࡼ

ࡿ᥮Ẽᛶ⬟ホ౯᪉ἲ࡛ࡣࠊྛ㛤ཱྀ࠿ࡽὶධࡋࡓẼὶࡀᒁᡤ㡿ᇦ࡟฿㐩 ࡏࡎ࡟ࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺࢆᙧᡂࡋ࡚ὶฟࡍࡿẼὶࡢ๭ྜࢆ⟬ฟࡍࡿ

ࡇ࡜ࡀᅔ㞴࡜࡞ࡿࠋ)LJ ࡟ &DVH ࡟࠾ࡅࡿởᰁ㉁㝖ཤຠ⋡ࢆ⏝࠸ࡓ

㏻㢼ᛶ⬟ホ౯ࡢၥ㢟Ⅼࢆ♧ࡍࠋࡇࢀࡣࠊὶධẼὶࡢ฿㐩῝ᗘࡢุᐃ᪉

ྥࡀẼὶࡢὶධࡋࡓ㛤ཱྀ࡟ࡼࡗ࡚␗࡞ࡿࡓࡵࠊὶධ㛤ูཱྀ࡟ࢩ࣮ࣙࢺ ࢧ࣮࢟ࢵࢺࢆุ᩿࡛ࡁࡿ఩⨨࡟ởᰁ㉁Ⓨ⏕㡿ᇦࢆタᐃࡍࡿᚲせࡀ࠶ࡿ

ࡓࡵ࡛࠶ࡿࠋ๓ሗ࡛ࡣࠊࡇࡢࡼ࠺࡞㛤ཱྀ᮲௳࡟ࡶ㐺⏝ྍ⬟࡛࠶ࡿ㏻㢼

⌧㇟ࡢ᫬㛫ⓗኚືࢆ⪃៖ࡍࡿࡇ࡜ࡀྍ⬟࡞᪂ࡓ࡞⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟

ホ౯ᡭἲࢆ㛤Ⓨࡍࡿࡇ࡜ࡢᚲせᛶࢆᣦ᦬ࡋࡓࠋ

)LJ3UREOHPVRISROOXWDQWUHPRYDOHI㸚FLHQF\DVHYDOXDWLRQ PHWKRGRIFURVVYHQWLODWLRQSHUIRUPDQFHLQ&DVH

Pollutant

Generating domain Pollutant

Generating domain

㹶 㹷

Wind direction

㸸

Particle (Pollutant)

㸸

Trajectory of particles When evaluating the ventilation performance using pollutant removal efficiency (e.g. Purging Flow Rate), it is difficult to consider the influence of the short circuit with the case that the inflow and outflow openings are changing constantly.

It is difficult to determine whether the particle is short circuit or not.

㸦G&DVHW >V@

㼃㼕㼚㼐㻌㼐㼕㼞㼑㼏㼠㼕㼛㼚 䡔

䡕 :LQGVSHHGUDWLR

LQVLGH

RXWVLGH

㸦F&DVHW >V@

㼃㼕㼚㼐㻌㼐㼕㼞㼑㼏㼠㼕㼛㼚 䡔

䡕 :LQGVSHHGUDWLR

LQVLGH

RXWVLGH

)LJ'LVWULEXWLRQRILQVWDQWDQHRXVYHORFLW\YHFWRUVLQKRUL]RQWDOVHFWLRQDW] PP

㸦D&DVHW >V@

㼃㼕㼚㼐㻌㼐㼕㼞㼑㼏㼠㼕㼛㼚 䡔

䡕 :LQGVSHHGUDWLR

LQVLGH

RXWVLGH

㸦E&DVHW >V@

㼃㼕㼚㼐㻌㼐㼕㼞㼑㼏㼠㼕㼛㼚 䡔

䡕 :LQGVSHHGUDWLR

LQVLGH

RXWVLGH

㼃㼕㼚㼐㻌㼐㼕㼞㼑㼏㼠㼕㼛㼚 䡔

䡕 :LQGVSHHGUDWLR

LQVLGH

RXWVLGH

㸦H&DVHW >V@

ࠉ᪂ࡓ࡟ᥦ᱌ࡍࡿ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࡢᴫせ

ࠉ)LJ ࡟᪂ࡓ࡟ᥦ᱌ࡍࡿ㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ ౯ᡭἲࢆࠊ)LJ ࡟㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲ ࡢࢲ࢖࢔ࢢ࣒ࣛࢆ♧ࡍࠋ)LJ ࡟♧ࡍᘧ 㸯ࠊ 㸰ࠊ 㸱 ࡣࠊࡑ

ࢀࡒࢀ᥮Ẽᛶ⬟ホ౯㡿ᇦ฿㐩⋡ U

L

>@ࠊ᭷ຠ᥮Ẽ㔞 4

HL

>P

K@ࠊ᭷ຠ

᥮Ẽ㔞ẚ U

HL

>@ ࡢᐃ⩏ᘧ࡛࠶ࡿࠋᮏ◊✲࡛ᥦ᱌ࡍࡿ᪂ࡓ࡞⮬↛᥮Ẽ࣭

㏻㢼ᛶ⬟ホ౯ᡭἲ࡛ࡣࠊࡲࡎࠊ᪂㩭✵Ẽࡢ฿㐩῝ᗘࢆᛕ㢌࡟᥮Ẽᛶ

⬟ホ౯㡿ᇦ ᐊෆ࡟タᐃࡍࡿ௬᝿ࡢ㡿ᇦ ࢆᐊෆࡢ௵ពࡢ఩⨨࡟タ ᐃࡍࡿࠋᮏሗ࡛ࡣࠊࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺ⌧㇟ࢆ⪃៖ࡋࠊὶධࡋࡓ᪂ 㩭እẼࡢෆࠊᒃఫᇦࡢởᰁ㉁ࡢ᤼ฟ࡟᭷ຠ࡟ᐤ୚ࡍࡿ᥮Ẽ㔞ࡢࡳࢆ

ホ౯ࡍࡿࡓࡵࠊ㛤ཱྀ㒊࡟ᑐࡋ࡚ࣔࢹࣝ୰ᚰ⥺࠿ࡽ┦ᑐࡍࡿቨ㠃ࡲ࡛

ࢆ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡜ࡍࡿࠋ

ࠉḟ࡟ྛ㛤ཱྀ㒊࡟࠾࠸࡚➼㛫㝸࡟ ⾜™ ิࡢ⢏ᏊࡢᨺฟⅬࢆタ ࡅࠊྛ᫬้࡟࠾࠸࡚ィ ಶࡢ⢏Ꮚࡢᨺฟࢆ⾜࠺ࠋ⢏Ꮚ࡟ࡣ㉁㔞࣭

኱ࡁࡉࡣ↓ࡃࠊࢢࣜࢵࢻࢫࢣ࣮ࣝࡢ▐᫬ࡢ㏿ᗘ࣋ࢡࢺࣝ࡟㏣ᚑࡍࡿࠋ

⢏Ꮚ㏣㊧࡛ࡣᨺฟࡋࡓ⢏Ꮚࡢ᥮Ẽᛶ⬟ホ౯㡿ᇦ฿㐩ᩘࡀ୍ᐃ࡜࡞ࡾࠊ

⢏Ꮚ㏣㊧⤖ᯝࡀᐃᖖ≧ែ࡟㐩ࡍࡿࡲ࡛Ẽὶゎᯒࢹ࣮ࢱࢆ࿘ᮇⓗ

^ὀ㸯

࡟

౑⏝ࡍࡿࠋᮏሗ࡛౑⏝ࡍࡿẼὶゎᯒࢹ࣮ࢱࡢฟຊ㢖ᗘࡣ >+]@

^ὀ

㸰

࡛࠶ࡿࠋᮏ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲ࡛ࡣࠊ㛤ཱྀ㠃࠿ࡽᨺฟࡍ

ࡿ⢏Ꮚࡣ᪂㩭እẼࢆᶍᨃࡋ࡚࠸ࡿࠋ⢏Ꮚ㏣㊧ࡢ㝿ࡣࠊᨺฟࡉࢀࡓ⢏

Ꮚࡢ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟฿㐩ࡍࡿࡲ࡛ࡢ᫬㛫ࡣ⪃៖ࡏࡎࠊ᥮Ẽᛶ⬟

ホ౯㡿ᇦ࡟฿㐩ࡋࡓ⢏Ꮚࡣ඲࡚฿㐩⢏Ꮚᩘ࡟ຍ⟬ࡍࡿࠋᚑࡗ࡚ࠊᨺ ฟ┤ᚋ࡟᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟฿㐩ࡍࡿ⢏Ꮚ࡜ᨺฟᚋ࡟ᐊෆࢆᚠ⎔ࡋ ࡓᚋࠊ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟฿㐩ࡋࡓ⢏Ꮚࡣࠊྠᵝ࡟᪂㩭እẼࡀ᭷ຠ

࡟᥮Ẽ࡟ᐤ୚ࡋࡓ࡜ࡋ࡚ホ౯ࡉࢀࡿࠋࡇࢀࡣ㏻㢼᫬ࡢ᥮Ẽᅇᩘࡣ༑ᩘ

ᅇ௨ୖ࡜ẚ㍑ⓗ኱ࡁ࠸ࡓࡵࠊ⢏Ꮚࡢ฿㐩᫬㛫ᕪࡀ᪂㩭እẼࡢởᰁᗘࡢ ᕪ࡜ࡋ࡚ၥ㢟࡞࠸࡜ุ᩿ࡋࡓࡓࡵ࡛࠶ࡿࠋᑦࠊ3,9 ゎᯒ⤖ᯝ

ࢆ⏝࠸࡚ࠊ

ྛ㛤ཱྀ㠃࡟࠾ࡅࡿἲ⥺᪉ྥࡢὶධฟ㢼㏿࣋ࢡࢺࣝᡂศࡢ࿘Ἴᩘࢫ࣌ࢡ ࢺࣝゎᯒࢆ⾜ࡗࡓ⤖ᯝࠊ>V@>+]@ ࡟ࣆ࣮ࢡࡀぢࡽࢀࡓࡓࡵࠊᮏ

◊✲࡟࠾ࡅࡿྛ㛤ཱྀ㠃࠿ࡽ⢏Ꮚࢆᨺฟࡍࡿ᫬㛫㛫㝸ࡣ >V@ ࡜ࡍࡿࠋ ࠉ⢏Ꮚࡢᨺฟࡣྛ㛤ཱྀ㒊࠿ࡽ >V@ ẖ࡟ ಶࡎࡘࠊ ⛊㛫࡛

ᅇᨺฟࡍࡿࡇ࡜࡛ࠊ୍ࡘࡢ㛤ཱྀ㒊࠿ࡽィ ಶࢆᨺฟࡍࡿࠋᨺฟࡋ ࡓ⢏Ꮚࡢ฿㐩ᩘࡀ୍ᐃ࡜࡞ࡾࠊᐃᖖ≧ែ࡟㐩ࡍࡿࡲ࡛ /(6 ゎᯒ⤖ᯝࡢ

᫬⣔ิࢹ࣮ࢱ ᮏゎᯒ >V@ 㛫ࡢゎᯒ⤖ᯝ ࢆ࿘ᮇⓗ࡟౑⏝ࡍࡿࠋ

Evaluation area

x y Wind direction

Releasing points of particles 㸸Particle

㸸Trajectory of particles

ղ Count particles arriving at evaluation area.

Central plane of model

ձCount particles entering into model.

)LJ(YDOXDWLRQPHWKRGIRUQDWXUDOFURVVYHQWLODWLRQSHUIRUPDQFHFRQVLGHULQJ㸛RZ㸛XFWXDWLRQ 㸦H&DVH 㸦D&DVH

㸦E&DVH

㸦F&DVH

㸦G&DVH

Evaluation area

Releasing points of particlesϸ Releasing points of

particlesϹ

Central plane of model 㸸Particle ϸ

㸸Particle Ϲ

㸸Trajectory of particles ϸ 㸸Trajectory of particles Ϲ

Wind direction

x y

ձCount particles entering into model.

ղCount particles arriving at evaluation area.

Evaluation area

Releasing points of particlesϹ Releasing points of

particlesϸ

Central plane of model Wind direction

x y 㸸Particle ϸ 㸸Particle Ϲ

㸸Trajectory of particles ϸ 㸸Trajectory of particles Ϲ

ձCount particles entering into model.

ղ Count particles arriving at evaluation area.

Releasing points of particlesϸ

Releasing points of particlesϹ 㸸Particle ϸ

㸸Particle Ϲ

㸸Trajectory of particles ϸ 㸸Trajectory of particles Ϲ Evaluation areaϸ

Central plane of model Wind direction

x y

Evaluation areaϹ

ղ Count particles arriving at evaluation area.

ձCount particles entering into model.

Evaluation area

Releasing points of particles i Releasing points of particles ii

Central plane of model

ճExclude particles exiting from model not arriving at evaluation area.

Wind direction

x

y ձ Count particles

entering into model.

ղ Count particles arriving at evaluation area.

㸸Particle ϸ 㸸Particle Ϲ

㸸Trajectory of particles ϸ 㸸Trajectory of particles Ϲ

ࠉ᪂ࡓ࡟ᥦ᱌ࡍࡿ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲࡢᴫせ

ࠉ)LJ ࡟᪂ࡓ࡟ᥦ᱌ࡍࡿ㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ ౯ᡭἲࢆࠊ)LJ ࡟㢼㏿ኚືࢆ⪃៖ࡋࡓ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲ ࡢࢲ࢖࢔ࢢ࣒ࣛࢆ♧ࡍࠋ)LJ ࡟♧ࡍᘧ 㸯ࠊ 㸰ࠊ 㸱 ࡣࠊࡑ

ࢀࡒࢀ᥮Ẽᛶ⬟ホ౯㡿ᇦ฿㐩⋡ U

L

>@ࠊ᭷ຠ᥮Ẽ㔞 4

HL

>P

K@ࠊ᭷ຠ

᥮Ẽ㔞ẚ U

HL

>@ ࡢᐃ⩏ᘧ࡛࠶ࡿࠋᮏ◊✲࡛ᥦ᱌ࡍࡿ᪂ࡓ࡞⮬↛᥮Ẽ࣭

㏻㢼ᛶ⬟ホ౯ᡭἲ࡛ࡣࠊࡲࡎࠊ᪂㩭✵Ẽࡢ฿㐩῝ᗘࢆᛕ㢌࡟᥮Ẽᛶ

⬟ホ౯㡿ᇦ ᐊෆ࡟タᐃࡍࡿ௬᝿ࡢ㡿ᇦ ࢆᐊෆࡢ௵ពࡢ఩⨨࡟タ ᐃࡍࡿࠋᮏሗ࡛ࡣࠊࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺ⌧㇟ࢆ⪃៖ࡋࠊὶධࡋࡓ᪂ 㩭እẼࡢෆࠊᒃఫᇦࡢởᰁ㉁ࡢ᤼ฟ࡟᭷ຠ࡟ᐤ୚ࡍࡿ᥮Ẽ㔞ࡢࡳࢆ

ホ౯ࡍࡿࡓࡵࠊ㛤ཱྀ㒊࡟ᑐࡋ࡚ࣔࢹࣝ୰ᚰ⥺࠿ࡽ┦ᑐࡍࡿቨ㠃ࡲ࡛

ࢆ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡜ࡍࡿࠋ

ࠉḟ࡟ྛ㛤ཱྀ㒊࡟࠾࠸࡚➼㛫㝸࡟ ⾜™ ิࡢ⢏ᏊࡢᨺฟⅬࢆタ ࡅࠊྛ᫬้࡟࠾࠸࡚ィ ಶࡢ⢏Ꮚࡢᨺฟࢆ⾜࠺ࠋ⢏Ꮚ࡟ࡣ㉁㔞࣭

኱ࡁࡉࡣ↓ࡃࠊࢢࣜࢵࢻࢫࢣ࣮ࣝࡢ▐᫬ࡢ㏿ᗘ࣋ࢡࢺࣝ࡟㏣ᚑࡍࡿࠋ

⢏Ꮚ㏣㊧࡛ࡣᨺฟࡋࡓ⢏Ꮚࡢ᥮Ẽᛶ⬟ホ౯㡿ᇦ฿㐩ᩘࡀ୍ᐃ࡜࡞ࡾࠊ

⢏Ꮚ㏣㊧⤖ᯝࡀᐃᖖ≧ែ࡟㐩ࡍࡿࡲ࡛Ẽὶゎᯒࢹ࣮ࢱࢆ࿘ᮇⓗ

^ὀ㸯

࡟

౑⏝ࡍࡿࠋᮏሗ࡛౑⏝ࡍࡿẼὶゎᯒࢹ࣮ࢱࡢฟຊ㢖ᗘࡣ >+]@

^ὀ

㸰

࡛࠶ࡿࠋᮏ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯ᡭἲ࡛ࡣࠊ㛤ཱྀ㠃࠿ࡽᨺฟࡍ

ࡿ⢏Ꮚࡣ᪂㩭እẼࢆᶍᨃࡋ࡚࠸ࡿࠋ⢏Ꮚ㏣㊧ࡢ㝿ࡣࠊᨺฟࡉࢀࡓ⢏

Ꮚࡢ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟฿㐩ࡍࡿࡲ࡛ࡢ᫬㛫ࡣ⪃៖ࡏࡎࠊ᥮Ẽᛶ⬟

ホ౯㡿ᇦ࡟฿㐩ࡋࡓ⢏Ꮚࡣ඲࡚฿㐩⢏Ꮚᩘ࡟ຍ⟬ࡍࡿࠋᚑࡗ࡚ࠊᨺ ฟ┤ᚋ࡟᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟฿㐩ࡍࡿ⢏Ꮚ࡜ᨺฟᚋ࡟ᐊෆࢆᚠ⎔ࡋ ࡓᚋࠊ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟฿㐩ࡋࡓ⢏Ꮚࡣࠊྠᵝ࡟᪂㩭እẼࡀ᭷ຠ

࡟᥮Ẽ࡟ᐤ୚ࡋࡓ࡜ࡋ࡚ホ౯ࡉࢀࡿࠋࡇࢀࡣ㏻㢼᫬ࡢ᥮Ẽᅇᩘࡣ༑ᩘ

ᅇ௨ୖ࡜ẚ㍑ⓗ኱ࡁ࠸ࡓࡵࠊ⢏Ꮚࡢ฿㐩᫬㛫ᕪࡀ᪂㩭እẼࡢởᰁᗘࡢ ᕪ࡜ࡋ࡚ၥ㢟࡞࠸࡜ุ᩿ࡋࡓࡓࡵ࡛࠶ࡿࠋᑦࠊ3,9 ゎᯒ⤖ᯝ

ࢆ⏝࠸࡚ࠊ

ྛ㛤ཱྀ㠃࡟࠾ࡅࡿἲ⥺᪉ྥࡢὶධฟ㢼㏿࣋ࢡࢺࣝᡂศࡢ࿘Ἴᩘࢫ࣌ࢡ ࢺࣝゎᯒࢆ⾜ࡗࡓ⤖ᯝࠊ>V@>+]@ ࡟ࣆ࣮ࢡࡀぢࡽࢀࡓࡓࡵࠊᮏ

◊✲࡟࠾ࡅࡿྛ㛤ཱྀ㠃࠿ࡽ⢏Ꮚࢆᨺฟࡍࡿ᫬㛫㛫㝸ࡣ >V@ ࡜ࡍࡿࠋ ࠉ⢏Ꮚࡢᨺฟࡣྛ㛤ཱྀ㒊࠿ࡽ >V@ ẖ࡟ ಶࡎࡘࠊ ⛊㛫࡛

ᅇᨺฟࡍࡿࡇ࡜࡛ࠊ୍ࡘࡢ㛤ཱྀ㒊࠿ࡽィ ಶࢆᨺฟࡍࡿࠋᨺฟࡋ ࡓ⢏Ꮚࡢ฿㐩ᩘࡀ୍ᐃ࡜࡞ࡾࠊᐃᖖ≧ែ࡟㐩ࡍࡿࡲ࡛ /(6 ゎᯒ⤖ᯝࡢ

᫬⣔ิࢹ࣮ࢱ ᮏゎᯒ >V@ 㛫ࡢゎᯒ⤖ᯝ ࢆ࿘ᮇⓗ࡟౑⏝ࡍࡿࠋ

Evaluation area

x y Wind direction

Releasing points of particles 㸸Particle

㸸Trajectory of particles

ղ Count particles arriving at evaluation area.

Central plane of model

ձCount particles entering into model.

)LJ(YDOXDWLRQPHWKRGIRUQDWXUDOFURVVYHQWLODWLRQSHUIRUPDQFHFRQVLGHULQJ㸛RZ㸛XFWXDWLRQ 㸦H&DVH 㸦D&DVH

㸦E&DVH

㸦F&DVH

㸦G&DVH

Evaluation area

Releasing points of particlesϸ Releasing points of

particlesϹ

Central plane of model 㸸Particle ϸ

㸸Particle Ϲ

㸸Trajectory of particles ϸ 㸸Trajectory of particles Ϲ

Wind direction

x y

ձCount particles entering into model.

ղCount particles arriving at evaluation area.

Evaluation area

Releasing points of particlesϹ Releasing points of

particlesϸ

Central plane of model Wind direction

x y 㸸Particle ϸ 㸸Particle Ϲ

㸸Trajectory of particles ϸ 㸸Trajectory of particles Ϲ

ձCount particles entering into model.

ղ Count particles arriving at evaluation area.

Releasing points of particlesϸ

Releasing points of particlesϹ 㸸Particle ϸ

㸸Particle Ϲ

㸸Trajectory of particles ϸ 㸸Trajectory of particles Ϲ Evaluation areaϸ

Central plane of model Wind direction

x y

Evaluation areaϹ

ղ Count particles arriving at evaluation area.

ձCount particles entering into model.

Evaluation area

Releasing points of particles i Releasing points of particles ii

Central plane of model

ճExclude particles exiting from model not arriving at evaluation area.

Wind direction

x

y ձ Count particles

entering into model.

ղ Count particles arriving at evaluation area.

㸸Particle ϸ 㸸Particle Ϲ

㸸Trajectory of particles ϸ 㸸Trajectory of particles Ϲ

ࠉ௨ୗ࡟ྛ FDVH ࡟࠾ࡅࡿ⢏Ꮚᨺฟ᪉ἲࡢヲ⣽ࢆ♧ࡍࠋ

㸯&DVH&DVH ࡛ࡣᩘ್ὶయゎᯒࡢ⤖ᯝࡼࡾࠊ㢼ୖഃ㛤ཱྀ 㛤ཱྀϸ㸧

࠿ࡽࡢࡳẼὶࡀὶධࡍࡿࠋ&DVH ࡢࡼ࠺࡟Ẽὶࡢὶධ࣭ὶฟ㛤ཱྀࡀ᫂☜

࡛᫬㛫ⓗ࡟ኚ໬ࡋ࡞࠸ሙྜࠊ୍ࡘࡢ㛤ཱྀ 㛤ཱྀϸ ࠿ࡽࡢࡳ⢏Ꮚࢆᨺฟ ࡋࡓሙྜ࡛ࡶ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯⤖ᯝ࡟ࡣ኱ࡁ࡞ᙳ㡪ࡣ࡞࠸࡜⪃࠼

ࡽࢀࡿࠋࡇࡢࡼ࠺࡞ሙྜࡣィ⟬㈇ⲴࡢほⅬ࠿ࡽ⢏Ꮚࢆᨺฟࡍࡿ㛤ཱྀࢆ㑅 ᢥࡋ࡚ゎᯒࢆ⾜࠺ࡇ࡜ࡶྍ⬟࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡢࡓࡵࠊᮏሗ࡛ࡣ

&DVH ࡟࠾࠸࡚ࡣࠊ㢼ୖഃ㛤ཱྀ 㛤ཱྀ L ࠿ࡽࡢࡳ⢏Ꮚࡢᨺฟࢆ⾜࠺ࠋ 㸰&DVH&DVH ࡢ༢⣧ఫᏯࣔࢹࣝ ࣔࢹࣝ $ ࡣᑐ⛠ⓗ࡞఩⨨࡟

㛤ཱྀࢆ᭷ࡋ࡚࠾ࡾࠊ᫬㛫ᖹᆒⓗ࡟ࡣ᥮Ẽ⌧㇟ࡀ㉳ࡁ࡞࠸࡜ࡉࢀࡿࠋ ᮏ◊✲࡛⏝࠸ࡿ /(6 ゎᯒ⤖ᯝ࡛ࡣࠊእ㒊ࡢὶධኚື㢼࡟㉳ᅉࡋ୧㛤

ཱྀ 㛤ཱྀϸ 㛤ཱྀϹ ࠿ࡽ஺஫࡟ẼὶࡀὶฟධࡍࡿᵝᏊࡀ෌⌧ࡉࢀ

࡚࠸ࡿࠋ୧㛤ཱྀඹ࡟Ẽὶὶධࡀほᐹࡉࢀࡿࡓࡵࠊ&DVH ࡛ࡣࠊ୧㛤ཱྀ

࠿ࡽ⢏Ꮚࡢᨺฟࢆ⾜࠺ࠋ

㸱&DVH&DVH ࡢ༢⣧ఫᏯࣔࢹࣝ ࣔࢹࣝ % ࡟ࡘ࠸࡚ࡶ &DVH ࡢሙྜ࡜ྠᵝࠊᑐ⛠ⓗ࡞఩⨨࡟㛤ཱྀࢆ᭷ࡋ࡚࠾ࡾࠊ᫬㛫ᖹᆒⓗ࡟ࡣ

᥮Ẽ⌧㇟ࡀ㉳ࡁ࡞࠸࡜ࡉࢀࡿࠋᮏ◊✲࡛⏝࠸ࡿ /(6 ゎᯒ⤖ᯝ࡛ࡣࠊ እ㒊ࡢὶධኚື㢼࡟㉳ᅉࡋ୧㛤ཱྀ 㛤ཱྀϸ 㛤ཱྀϹ ࠿ࡽ஺஫࡟Ẽ ὶࡀὶฟධࡍࡿᵝᏊࡀ෌⌧ࡉࢀ࡚࠸ࡿࠋ୧㛤ཱྀඹ࡟Ẽὶὶධࡀほᐹ

ࡉࢀࡿࡓࡵࠊ&DVH ࡛ࡣࠊ୧㛤ཱྀ࠿ࡽ⢏Ꮚࡢᨺฟࢆ⾜࠺ࠋ

㸲&DVH&DVH ࡢሙྜ ࣔࢹࣝ % ࡶᑐ⛠ⓗ࡞఩⨨࡟㛤ཱྀࢆ᭷ࡋ࡚

࠾ࡾࠊ᫬㛫ᖹᆒⓗ࡟ࡣ᥮Ẽ⌧㇟ࡀ㉳ࡁ࡞࠸࡜ࡉࢀࡿࠋᮏ◊✲࡛⏝࠸ࡿ

/(6 ゎᯒ⤖ᯝ࡛ࡣࠊእ㒊ࡢὶධኚື㢼࡟㉳ᅉࡋ୧㛤ཱྀ 㛤ཱྀϸ 㛤ཱྀϹ

࠿ࡽ஺஫࡟ẼὶࡀὶฟධࡍࡿᵝᏊࡀ෌⌧ࡉࢀ࡚࠸ࡿࠋ୧㛤ཱྀඹ࡟Ẽὶ ὶධࡀほᐹࡉࢀࡿࡓࡵࠊ&DVH ࡛ࡣࠊ୧㛤ཱྀ࠿ࡽ⢏Ꮚࡢᨺฟࢆ⾜࠺ࠋ 㸳FDVH&DVH ࡢ༢⣧ఫᏯࣔࢹࣝ ࣔࢹࣝ % ࡛ࡣࠊ᫬㛫ᖹᆒⓗ

࡞ゎᯒ࡟࠾࠸࡚ࡣ㢼ୖഃ㛤ཱྀ 㛤ཱྀϸ ࡢ᪉ࡀᅽຊࡀపࡃࠊᐃᖖⓗ

࡟㢼ୗഃ㛤ཱྀ 㛤ཱྀϹ ࠿ࡽẼὶࡀὶධࡍࡿࠋࡋ࠿ࡋࠊ▐᫬ⓗ࡞Ẽ ὶᛶ≧࡛ࡣ㛤ཱྀ L ࠿ࡽὶධࡍࡿẼὶࡶᏑᅾࡍࡿࡓࡵࠊ&DVH ࡛ࡣࠊ୧ 㛤ཱྀ࠿ࡽ⢏Ꮚࡢᨺฟࢆ⾜࠺ࠋ

ࠉ⢏Ꮚᨺฟᚋࡣࠊᐊෆ࡟ὶධࡋࡓ⢏Ꮚᩘ࡟ᑐࡍࡿ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟

฿㐩ࡋࡓ⢏Ꮚᩘࡢ๭ྜ ᥮Ẽᛶ⬟ホ౯㡿ᇦ฿㐩⋡ ࢆồࡵࠊ᪂㩭እẼ ࡢෆࠊᐊෆᒃఫᇦࡢ᥮Ẽ࡟ᐤ୚ࡍࡿ㢼㔞 ᭷ຠ᥮Ẽ㔞 ࢆ⟬ฟࡍࡿࠋ ࠉᚑ᮶ࡢ᥮Ẽᅇ㊰⥙ィ⟬࡞࡝࡛ࡣࠊ୍ᐊ࡛ᆒ୍࡞ศᕸ࡜ࡋ࡚᥮Ẽᛶ≧

ࡀィ⟬ࡉࢀࠊ≉࡟㏻㢼ࡢሙྜ࡛ࡣࠊእ㒊㢼࡟ࡼࡗ࡚⏕ࡌࡿ᥮Ẽ㔞ࡀ᥮

Ẽᅇᩘ࡜ࡋ࡚ẚ㍑ⓗከ࠸ࡓࡵࠊᐊෆ࡛ࡢ᏶඲ΰྜࠊ᏶඲ᣑᩓࢆ௬ᐃࡋ

࡚ࡶၥ㢟࡞࠸࡜⪃࠼ࡽࢀ࡚ࡁࡓࠋࡋ࠿ࡋࠊᮏ᮶ࠊ㏻㢼᫬ࡢ㛤ཱྀ᮲௳࡟

ࡼࡗ࡚ࡣࠊ㏻Ẽ㍯㐨ࡸࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺࡀᙧᡂࡉࢀࠊᐊෆ࡛ࡢ᥮Ẽ

ຠ⋡࡟ศᕸ ౛࠼ࡤ✵Ẽ㱋ࡢศᕸ ࡀ⏕ࡌࡿࡇ࡜࠿ࡽࠊὶධࡋࡓ᪂㩭 እẼࡢ඲㔞ࡀᐊෆࡢ᥮Ẽ࡟ᐇ㉁ⓗ࡟ᐤ୚ࡋ࡚࠸࡞࠸࡜⪃࠼ࡽࢀࡿࠋ㏻

㢼᫬࡟ࡣᵝࠎ࡞㛤ཱྀ᮲௳ࡸᘓ≀࿘㎶≧ἣࡢᙳ㡪࡟ࡼࡾࠊ᪂㩭እẼࡢὶ ධ㔞ࡣẚ㍑ⓗᑡ࡞࠸ࡀࠊᐊෆ࡟ᚠ⎔ὶࢆᙧᡂࡍࡿࡇ࡜࡛ᐊ඲యࡢ᥮Ẽ

࡟ᐤ୚ࡍࡿሙྜࡸࠊ᪂㩭እẼࡢὶධ㔞ࡣከ࠸ࡀࠊࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺ

ࢆᙧᡂࡋ࡚┤ࡄ࡟ὶฟࡍࡿሙྜ࡞࡝ࠊᵝࠎ࡞ᐊෆẼὶᛶ≧ࡀ⪃࠼ࡽࢀ

ࡿࠋᮏᡭἲࢆ⏝࠸ࡿࡇ࡜࡟ࡼࡾࠊ᫬㛫ⓗ࡟ኚ໬ࡍࡿ⮬↛᥮Ẽ࣭㏻㢼ᛶ

≧ࢆᑐ㇟࡜ࡋࡓሙྜ࡛ࡶࠊᐊෆᒃఫᇦࡢ᥮Ẽ࡟ᐇ㉁ⓗ࡟᭷ຠ࡟ᐤ୚ࡍ

ࡿ࡜⪃࠼ࡽࢀࡿ᥮Ẽ㔞ࢆᐃ㔞ⓗ࡟ホ౯ࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿࠋ௨ୖࡀ ᮏᣦᶆ࡛ࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺࢆホ౯ࡍࡿࡇ࡜࡟ࡼࡿ᭷⏝ᛶ࡛࠶ࡿࠋ ࠉ᥮Ẽᛶ⬟ホ౯㡿ᇦ฿㐩⋡ࠊ᭷ຠ᥮Ẽ㔞ࠊ᭷ຠ᥮Ẽ㔞ẚࡢ⟬ฟ᪉ἲ ࠉ)LJ ࡟♧ࡍᘧ 㸯 ࡟ࡼࡾ᥮Ẽᛶ⬟ホ౯㡿ᇦ฿㐩⋡ U

L

>@ ࢆࠊᘧ 㸰 ࡟ࡼࡾ᭷ຠ᥮Ẽ㔞 4

HL

>P

K@ ࢆࠊᘧ 㸱 ࡟ࡼࡾ᭷ຠ᥮Ẽ㔞ẚ U

HL

>@ ࢆ⟬ฟࡍࡿࠋῧ࠼Ꮠ L ࡣ L ᅇ┠ࡢ⢏Ꮚᨺฟࢆ♧ࡍࠋ᥮Ẽᛶ⬟

ホ౯㡿ᇦ฿㐩⋡ U

L

>@ ࡣࠊ⢏Ꮚࡀ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟฿㐩ࡍࡿ๭ྜ࡛

࠶ࡾࠊL ᅇ┠ࡢ⢏Ꮚᨺฟ᫬࡟࠾࠸࡚ᨺฟࡉࢀࡓ⢏Ꮚࡢෆࠊ᥮Ẽᛶ⬟ホ ౯㡿ᇦ࡟฿㐩ࡋࡓ฿㐩⢏Ꮚᩘ Q

UL

> ಶ @ ࢆ༢⣧ఫᏯࣔࢹࣝෆ࡬ࡢὶධ

⢏Ꮚᩘ Q

LQL

> ಶ @ ࡛㝖ࡋ࡚ồࡵࡿࠋ᭷ຠ᥮Ẽ㔞 4

HL

>P

K@ ࡣࠊL ᅇ┠

ࡢ⢏Ꮚᨺฟ᫬ࡢ㛤ཱྀ㠃▐᫬ὶධ㔞 4

LQL

>P

K@ ࡟ୖグ࡛⟬ฟࡋࡓ฿㐩

⋡ U

L

>@ ࢆ஌ࡌࡓࡶࡢ࡛ࠊࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺࢆ⪃៖ࡋ࡚༑ศ࡟ᐊෆ

࡟ᒃఫᇦ࡟฿㐩ࡋࡓ㢼㔞࡛࠶ࡾࠊᐊෆࡢ᥮Ẽ࡟᭷ຠ࡛࠶ࡿ࡜ุᐃࡉࢀ

ࡓ᥮Ẽ㔞ࢆ♧ࡍࠋ᭷ຠ᥮Ẽ㔞ẚ U

HL

>@ ࡣࠊᇶ‽ࣔࢹࣝ ᮏ◊✲࡛ࡣࠊ ὶධ㛤ཱྀ㒊࡛ᨺฟࡉࢀࡓ⢏Ꮚࡢ඲ᩘࡀࣔࢹࣝෆ࡟ὶධࡍࡿ &DVH ࢆᇶ

‽ࣔࢹࣝ࡟タᐃࡍࡿࠋ ࡟࠾ࡅࡿ ⛊㛫ࡢ᫬㛫ᖹᆒ᭷ຠ᥮Ẽ㔞 4

HFDVH

࡟ᑐࡍࡿྛ FDVH ࡢ᭷ຠ᥮Ẽ㔞 4

HL

>P

K@ ࡢẚ࡛࠶ࡿࠋ᭦࡟ࠊ⟬ฟࡋࡓ L ᅇࡢ᭷ຠ᥮Ẽ㔞࡜᭷ຠ᥮Ẽ㔞ẚࢆࡑࢀࡒࢀᖹᆒࡋࠊᖹᆒ᭷ຠ᥮Ẽ㔞 ཬࡧᖹᆒ᭷ຠ᥮Ẽ㔞ẚࢆ⟬ฟࡍࡿࠋ

ࠉ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯⤖ᯝ

ࠉ⢏Ꮚ㏣㊧ࡢ⤖ᯝཬࡧ᭷ຠ᥮Ẽ㔞ࡢ⟬ฟ⤖ᯝ

ࠉ)LJ ࡟ྛ &DVH ࡢ⢏Ꮚᩘ᥎⛣ࢆ♧ࡍࠋ)LJ ࡣ㛤ཱྀ࠿ࡽᨺฟࡉࢀ

)LJ'LDJUDPRI(YDOXDWLRQPHWKRGIRUQDWXUDOFURVV YHQWLODWLRQSHUIRUPDQFHFRQVLGHULQJ㸛RZ㸛XFWXDWLRQ 2 Release 100 particles in a frequency of two times the peak

frequency calculated in 1-2.

3-1 Count particles entering into model as n

_in,i

in Eq. (1).

3-2 Track and count particles arriving at evaluation area as n

_r,i

in Eq. (1).

3-3 Compute the ratio of particles arriving at the evaluation area from Eq. (1).

1-2 Analyze the spectrum of normal direction components of inlet and outlet wind velocity at openings of house model.

1-1 Set the evaluation area (e.g., the inner half part of the house) to exclude short circuit phenomena.

5 Compute the effective ventilation ratio from Eq. (3) based on the results of Case 1.

4-1 Calculate instantaneous inlet flow rate in the released time at openings as Q

_in,i

in Eq. (2).

4-2 Compute the effective ventilation rate from Eq. (2).

1 Setting of the analysis parameter.

䞉䞉䞉 (1)

䞉䞉䞉 (2)

䞉䞉䞉 (3)

ࡓ⢏Ꮚᩘࠊᐊෆ࡟ὶධࡋࡓ⢏Ꮚᩘཬࡧ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟฿㐩ࡋࡓ

⢏Ꮚᩘࡢ᫬㛫᥎⛣࡛࠶ࡿࠋFDVH ࡛ࡣࠊ࡯ࡰὶධ⢏Ꮚᩘ࡜᥮Ẽᛶ⬟

ホ౯㡿ᇦ฿㐩⢏Ꮚᩘࡀྠᵝࡢ್࡜࡞ࡗ࡚࠸ࡿࡀࠊࡑࡢ௚ࡢ FDVH ࡛ࡣ ὶධ⢏Ꮚᩘ࡟ᑐࡋ࡚᥮Ẽᛶ⬟ホ౯㡿ᇦ฿㐩⢏Ꮚᩘࡀᑡ࡞ࡃࠊᐊෆ࡟

ࢩ࣮ࣙࢺࢧ࣮࢟ࢵࢺࡀᙧᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀ♧ࡉࢀࡿࠋ

ࠉ)LJ ࡟ྛ &DVH ࡢ⢏Ꮚᨺฟࢱ࢖࣑ࣥࢢ࡟࠾ࡅࡿὶධ㔞ࢆ♧ࡍࠋὶ ධ㔞ࡣ୧㛤ཱྀ㠃࡟࠾ࡅࡿἲ⥺᪉ྥࡢὶධ㢼㏿࠿ࡽ⟬ฟࡋࡓ▐᫬ࡢ᥮

Ẽ㔞࡛࠶ࡿࠋ

ࠉ)LJ ࡟ྛ &DVH ࡢ⢏Ꮚ฿㐩⋡ࢆ♧ࡍࠋ⢏Ꮚ฿㐩⋡ࡣᐊෆ࡟ὶධࡋ ࡓ⢏Ꮚࡢෆࠊ᥮Ẽᛶ⬟ホ౯㡿ᇦ࡟฿㐩ࡋࡓ⢏Ꮚࡢẚ⋡ ᥮Ẽᛶ⬟ホ ౯㡿ᇦ฿㐩⋡ ࡛࠶ࡿࠋࡇࡢ್ࢆྛ⢏Ꮚᨺฟ᫬ࡢ㛤ཱྀ㠃ὶධ㔞࡟஌

ࡌࡿࡇ࡜࡛ᐊෆᒃఫᇦࡢ᥮Ẽ࡟ᐇ㉁ⓗ࡟ᐤ୚ࡍࡿ࡜⪃࠼ࡽࢀࡿ᭷ຠ

᥮Ẽ㔞ࢆ⟬ฟࡍࡿࠋ

ࠉ)LJ ࡟ྛ &DVH ࡢ᭷ຠ᥮Ẽ㔞ࢆ♧ࡍࠋᮏ◊✲࡛ࡣ୍ᐃ㛫㝸࡛ᨺฟ ࡉࢀࡿ⢏Ꮚࡢྛ⢏Ꮚᨺฟ᫬ࡢ᭷ຠ᥮Ẽ㔞ࢆồࡵࠊゎᯒ᫬㛫 >V@ 㹼

>V@ ࡢྜィ ⛊㛫࡟ࡘ࠸࡚ࠊᖹᆒ໬ࡍࡿࡇ࡜࡛ᖹᆒ᭷ຠ᥮Ẽ㔞

ࢆ⟬ฟࡍࡿࠋ

ࠉ௨ୗ࡟ྛ FDVH ࡟࠾ࡅࡿ⮬↛᥮Ẽ࣭㏻㢼ᛶ⬟ホ౯⤖ᯝࢆ♧ࡍࠋ ࠉ㢼ୖഃ࡜㢼ୗഃ࡟㛤ཱྀࢆ᭷ࡍࡿሙྜ &DVH

ࠉ㛤ཱྀ L ࠿ࡽᨺฟࡋࡓ඲⢏Ꮚࡀ༢⣧ఫᏯࣔࢹࣝᐊෆ࡟ὶධࡋࠊ༢⣧

ఫᏯࣔࢹࣝෆ࡟ᙧᡂࡉࢀࡿ┤⥺ⓗ࡞ὶࢀሙ࡟ἢࡗ࡚ࠊ㛤ཱྀϹ࠿ࡽ᤼

ฟࡉࢀࡿࠋ✚⟬฿㐩⢏Ꮚࡣ >V@ ௨㝆ቑຍࡋ࡚࠾ࡽࡎࠊᐃᖖ࡟㐩 ࡋࡓ࡜ࡳ࡞ࡍࡇ࡜ࡀ࡛ࡁࡿ )LJDࠋὶධ㔞ࡣ >P

K@ ࠿ࡽ

>P

K@ ࡛࠶ࡾࠊᖹᆒὶධ㔞ࡣ >P

K@ ࡛࠶ࡿ )LJࠋ฿㐩

⋡ࡣ᭱ప࡛ >㸣 @ࠊᖹᆒ࡛ࡣ >@ ࡛࠶ࡿ )LJࠋ&DVH ࡢ㛤ཱྀ

᮲௳࡛ࡣࠊὶධ᪂㩭እẼࡢ࡯ࡰ඲࡚ࡀᐊෆࡢ᥮Ẽ࡟ᐤ୚ࡍࡿ࡜⪃࠼

ࡽࢀࡿࠋᖹᆒ᭷ຠ᥮Ẽ㔞ࡣ >P

K@ ࡛࠶ࡾ )LJࠊࡇࡢ್ࢆ

ᇶ‽࡜ࡋ࡚ ᘧ࡟ࡼࡾࠊྛ &DVH ࡢ᭷ຠ᥮Ẽ㔞ẚࢆồࡵࡿࠋ

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