ᖱႎ䊶⸘▚Ꮏቇ䉶䊮䉺䊷

JAXA’s�Engineering�Digital�Innovation�Center

∓⇗⇩⇮⇎∙⇞∙᧏ႆ↚ⅹↀ↺ ⇗⇩⇮ ∙⇞∙᧏ႆ↚ⅹↀ↺

μኒᚐௌ↚Ӽↀ↎ӕ↹ኵ↮

ቝቮ⥶ⓨ⎇ⓥ㐿⊒ᯏ᭴

ᖱႎ䊶⸘▚Ꮏቇ䉶䊮䉺䊷

⼱ ⋥᮸

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 1

䊨䉬䉾䊃䉣䊮䉳䊮⸃ᨆᛛⴚ䈱ᣂዷ㐿2010ᐕ9᦬

‾‷‟⁊

ࣱᏡ

ࣱ̮᫂

ࣱᏡ dzǹȈ

ࣱᏡ

LE 7A

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 2

LE-7A

(H-IIA/B) LE-X

㻝㻞㻝

բ᫆ໜ

䉮䊮䊘䊷䊈䊮䊃㐿⊒ 䉣䊮䉳䊮⹜㛎

ᄙ䈒䈱⹜㛎䇮⸃ᨆ ዋ䈭䈇⹜㛎࿁ᢙ

಴ᚯ䉍 ^{ᕈ⢻ᧂ೔㆐ ᕈ⢻ᧂ೔㆐} _{䊃 䊑}

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏

㐿⊒䉮䉴䊃䊶ᦼ㑆䈱഍⊛䈭Ⴧᄢ䋣

಴ᚯ䉍 _{䊃䊤䊑䊦 䊃䊤䊑䊦}

μኒᚐௌ↝ॖ፯

䉣䊮䉳䊮ᚑ┙ᕈ

ᦼᓙ䈚䈢ᕈ⢻䉕ḩ䈢䈞䉎䈎䋿 ᦼᓙ䈚䈢ᕈ⢻䉕ḩ䈢䈞䉎䈎䋿

䉣䊮䉳䊮䈏ᒻ䈫䈚䈩಴᧪䉎೨䈮⍮䉍䈢䈇

䉳 ⹜㛎 ᢙᐕ೨

ਇౕวવ᠞

䉣䊮䉳䊮⹜㛎䈱ᢙᐕ೨䈮

䊘䊮䊒 ᓇ㗀䈭䈚

ਇౕว

಄ළㅢ〝

Ά὾ེ 䉣䊮䉳䊮䈫䈚䈩䈱 ᕈ⢻䈲䋿

಄ළㅢ〝

ਇౕว㑐ㅪ䈱⸃ᨆ䉕ㅢ䈛䈩

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 4

ਇౕว㑐ㅪ䈱⸃ᨆ䉕ㅢ䈛䈩

䉣䊮䉳䊮䉕ᅤ૗䈮㵰↢䈎䈜㵱䈎䇮䈫⸒䈉⍮⷗䈏᰼䈚䈇

㻝㻞㻞

Ⴘႎ

䉣䊮䉳䊮㐿⊒䈮䈍䈇䈩䈲ⷐ⚛䈗䈫䈮⸳⸘䇮⸃ᨆ䈏ታᣉ

䉣䊮䉳䊮㐿⊒䈪䈱໧㗴ὐ

⛔วᤨ䈮䈲䈬䈉䈭䉎䋿

䉳 ᛛⴚ ⊛

ో૕䉕⛔ว䈚䈢ᵹ૕⸃ᨆ䈮䉋䉍ᕈ⢻䊶ਇౕว੐⽎䉕⹏ଔ䈜䉎

䉣䊮䉳䊮ᛛⴚ㐿⊒䈫䈚䈩䈱⋡⊛

䉣䊮䉳䊮ో૕䈱ᵹ૕⸃ᨆ = 䉣䊮䉳䊮ో♽⸃ᨆ

ᢙంὐ䈱⸘▚ⷙᮨ 䊨䉬䉾䊃䉣䊮䉳䊮⸃ᨆ䈱․ᱶᕈ

ᭂૐ᷷ ⿥⥃⇇ 㜞ㅦᵹ Ά὾

ᭂૐ᷷ ⿥⥃⇇ 㜞ㅦᵹ

⸘▚ᛛⴚ㐿⊒䈫䈚䈩䈱⋡⊛

Ά὾

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏

⸃ᨆ䊉䉡䊊䉡䈱ขᓧ䈫ᄢⷙᮨ⸃ᨆ↪䉟䊮䊐䊤ᢛ஻

⸘▚ᛛⴚ㐿⊒䈫䈚䈩䈱⋡⊛

ᡲઃᜒࡈ↗↝᧙ᡲ

䉣䊮䉳䊮ో♽⸃ᨆ

໧㗴ὐ

䊨䉬䉾䊃䉣䊮䉳䊮⸃ᨆ䈱․ᱶᕈ

໧㗴ὐ

⺖㗴

ᭂૐ᷷ ⿥⥃⇇ 㜞ㅦᵹ Ά὾

ᭂૐ᷷䉨䊞䊎䊁䊷䉲䊢䊮 Ά὾ ྃ኿䊶ᓸ☸ൻ

ㅪ៤⻠ᐳ䈱ᚑᨐ䈲䉣䊮䉳䊮ో♽⸃ᨆ䈱

‛ᕈ䊶䊚䉪䊨⃻⽎

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 6

ㅪ៤⻠ᐳ䈱ᚑᨐ䈲䉣䊮䉳䊮ో♽⸃ᨆ䈱

♖ᐲะ਄䈮㓸⚂

㻝㻞㻟

‾‷‟⁊⇎∙⇞∙

Άᢱ䋨᳓⚛䋩䊘䊮䊒 䋨

䋩 䊙䊆䊖䊦䊄

㉄⚛䊘䊮䊒 䋨

䋩

ౣ↢಄ළ

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 7

⇎∙⇞∙২ᘐ᧏ႆ↗ↆ↕↝ॖ፯ ∙⇞∙২ᘐ᧏ႆ↗ↆ↕↝ॖ፯

ᕈ⢻⹏ଔ 䋧 ਇౕว੐⽎⹏ଔ

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 8

㻝㻞㻠

⇎∙⇞∙঺ᇌࣱ౨ᚰ

ో♽⸃ᨆ䈮䉋䉎䉣䊮䉳䊮ᚑ┙ᕈᬌ⸛

ᢙቇ 䊂 䋱ᰴరᢙቇ䊝䊂䊦

䈪ᚑ┙ᕈ䉕ᬌ⸛

AIAA2007-5531

䋳ᰴర⊛䈭ᵹ䉏䉕⠨䈋䈢႐ว䈱ᕈ⢻䈲䋿

䉣䊮䉳䊮ో♽⸃ᨆ䈪䉋䉍㜞♖ᐲ䈮⹏ଔ 䉣䊮䉳䊮ో♽⸃ᨆ䈪䉋䉍㜞♖ᐲ䈮⹏ଔ

ᕈ⢻ᧂ㆐ᚑ䈱

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 9

䊥䉴䉪シᷫ

ভࣞↄ↻↺ɧφӳʙᝋ↝̊≔

࿶ജ⣂േ

䊘䊮䊒⣂േ䈮䉋䉎ᓇ㗀 䊘䊮䊒⣂േ䈮䉋䉎ᓇ㗀

㉄⚛♽䊶䊶䊶䊶⍴䈇㈩▤

䉣䊮䉳䊮ផജ䈻䈱ᓇ㗀ᄢ 䉣䊮䉳䊮ផജ䈻䈱ᓇ㗀ᄢ

ജ ࿶ ജ ផജ

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏

Time[s] Time[s]

㻝㻞㻡

ভࣞↄ↻↺ɧφӳʙᝋ↝̊≕

ㇱຠ㘧ᢔ䈮䉋䉎ᓇ㗀⹏ଔ

․䈮࿁ォ♽

․䈮࿁ォ♽

᳓⚛䊘䊮䊒䋺Ფಽ 40000 ࿁ォએ਄

ỺὅἊὅࣱᏡồỉࢨ᪪

ׅ᠃˳ồỉࢨ᪪

ISP Thrust

ផജ

Ყផജ ( Ά⾌ ) ᵹ〝 Ⴇ䈭䈬

࿁ォ቟ቯᕈ

᣹࿶ᕈ⢻

䈭䈬

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 11

etc…

ᵹ〝㐽Ⴇ䈭䈬 䈭䈬

ᚘም২ᘐ᧏ႆ↗ↆ↕↝ॖ፯ ᚘም২ᘐ᧏ႆ↗ↆ↕↝ॖ፯

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 12

㻝㻞㻢

ᚐௌ২ᘐ↗ↆ↕↝բ᫆ໜ

CFD ⸃ᨆᤨ䈱໧㗴ὐ

䊘䊮䊒౉ญ ᶧ૕ ૐㅦᵹ 䊘䊮䊒౉ญ䋺ᶧ૕ ૐㅦᵹ

ౣ↢಄ළ䋺⿥⥃⇇ ਛ䌾ૐㅦᵹ 䊉䉵䊦䊶䉺䊷䊎䊮䋺᳇૕ 㜞ㅦᵹ

ᷙ࿷䈚䈢⁁ᘒ䈪䈱⸃ᨆ

ᢙm/s

ᐢ䈇‛ᕈ▸࿐ ૐㅦ䌾㜞ㅦᵹ䈱ᷙ࿷

ᢙ⊖᳇࿶ ᢙm/s

ᢙ᳇࿶

20K 700K

ᢙජm/s

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI

ᢙජ /

ᢙ୯⸃ᨆᛛⴚ䈱⏕┙䈫ᬌ⸽ ⺖㗴䈱᛽಴

ٻᙹ೉ᚐௌ↚ⅹↀ↺բ᫆ໜ↝৭੮

ᢙంὐⷙᮨ

䊂䊷䉺ォㅍ ⸃ᨆᤨ㑆

ᢙంὐⷙᮨ

⚿ᨐ ⸃ᨆ䊂䊷䉺

⚿ᨐ นⷞൻ/⹏ଔ

⸃ᨆ䊂 䉺

૞ᚑ ᣣᏱ⊛䈮ታᣉ䈜䉎䈱䈮ᔅⷐ䈭ⅣႺ䈏ᔅⷐ

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏

ᄢⷙᮨ⸃ᨆ↪䉟䊮䊐䊤ᢛ஻

㻝㻞㻣

ᚐௌཞඞ ᚐௌཞඞ

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 15

ᚐௌ⇟⇬⇩⇽

ᵱᵲᵣᵮᾀ ᵱᵲᵣᵮᾁ ᵱᵲᵣᵮᾂ

•

ૐ᷷䊶੝⥃⇇䌾㜞᷷䊶⿥⥃⇇ ฦⷐ⚛䈪䈱 ో૕䉕⚿ว䈚䈢⸃ᨆ

ἘἋἚᚐௌṞ ̓ዅኒᚐௌ ༓໲ኒᚐௌ ወӳᚐௌ

ᵱᵲᵣᵮᾀ ᵱᵲᵣᵮᾁ ᵱᵲᵣᵮᾂ

䈻䈱䉲䊷䊛䊧䉴⸃ᨆᛛⴚ┙⸽

•

ᄢⷙᮨ⸃ᨆᤨ䈱໧㗴ὐᛠី

ฦⷐ⚛䈪䈱

⸃ᨆนุ⏕⹺

ో૕䉕⚿ว䈚䈢⸃ᨆ ᕈ⢻੍᷹

ਇౕว੐⽎੍᷹

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 16

Ყセ⊛න⚐䈭 ᒻ⁁䈪ᬌ⸽

ታᒻ⁁⸃ᨆ

ታᒻ⁁⸃ᨆ

㻝㻞㻤

⇬⇟⇮ᚘም

ᐢ䈇‛ᕈ▸࿐ ૐㅦ䌾㜞ㅦᵹ䈱ᷙ࿷

ᢙ⊖᳇࿶ ᢙ᳇࿶ ᢙm/s

20K ᢙ⊖᳇࿶

700K

ᢙජm/s ᢙජm/s

⃻ⴕ䈱ᛛⴚ䈪⸃ᨆ䈪䈐䉎䈎䋿

⸃ᨆㅜਛ⚿ᨐ ⸃ᨆㅜਛ⚿ᨐ

໧㗴䈫䈭䉎ὐ䉕ᛮ䈐಴䈚䈢ⷐ⚛䊝䊂䊦䈪ᬌ⸽

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI

࿶ജಽᏓ ᷷ᐲಽᏓ

17

μኒᚐௌ ᚘም఍܇

㉄⚛䉺䊷䊗䊘䊮䊒 OTP

䉺䊷䊗䊘䊮䊒䈫๟ㄝ㈩▤

Άᢱ䉺 䊗䊘䊮䊒 ⷐ⚛⸃ᨆ ⛔ว⸃ᨆ

⸃ᨆᚻ㗅

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 18

Άᢱ䉺䊷䊗䊘䊮䊒 FTP

ⷐ⚛⸃ᨆ (ㇱຠ䈗䈫)

⛔ว⸃ᨆ (ో૕)

㻝㻞㻥

ᙲእᚐௌ ൦እ⇥∞∂∃∙⇽ࣱᏡᚸ̖

ure

ᅷᒰ

High

P[MPa]

Ptotal[MPa]

P�Design[MPa]

Press

Low

࿶ജಽᏓ ᢿᾲ࿶❗䈮䉋䉎

High

᷷ᐲ਄᣹

perature

ᐲ ᣹

T[K]

T�Design[K]

Temp

ᢿᾲ࿶❗ㆊዊ

ᭂૐ᷷‛ᕈ

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 19

᷷ᐲಽᏓ

ᭂૐ᷷‛ᕈ

㜞ᐲൻ

ᙲእᚐௌ ϐဃϬҲࣱᏡᚸ̖

Ά὾ེ಄ළㅢ〝 = ౣ↢಄ළㅢ〝 LE-X 䉣䊮䉳䊮䈱ⷐ

H2 H2

ടᾲ

ᢙ䊚䊥䈱᏷

ടᾲ

ᢙ䊚䊥䈱᏷

ᢙ⊖ᧄ

ᩰሶ⸃௝ᐲ╬䈱ᓇ㗀⹏ଔਛ

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI

᷷ᐲಽᏓ

Low High

20

㻝㻟㻜

ʻࢸ↝ʖܭ

ⷐ⚛⸃ᨆ

ଏ⛎♽ ౣ↢಄ළ♽ Ά὾♽

ฦⷐ⚛䈪䈱ᕈ⢻⹏ଔ ⺖㗴᛽಴

ో♽⸃ᨆ

ో♽⸃ᨆ

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏

䉣䊮䉳䊮ో૕⛔วᤨ䈱ਇౕว੐⽎䉕⹏ଔ

↭↗↰

↭↗↰

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 22

㻝㻟㻝

↭↗↰

ో♽⸃ᨆ䈱ᗧ⟵

㽲 ᕈ⢻⹏ଔ

ᦼᓙ䈚䈢ᕈ⢻䉕ḩ䈢䈞䉎䈎䋿 䉣䊮䉳䊮䈏ᒻ䈫䈚䈩಴᧪䉎೨䈮⍮䉎 䉣䊮䉳䊮䉕ᅤ૗䈮㵰↢䈎䈜㵱䈎䇮䈫⸒䈉⍮⷗䉕ᓧ䉎

㽳 ਇౕวવ᠞

૗ 䈜 䇮 ⸒䈉 ⷗ ᓧ

䊘䊮䊒

Ά὾ེ 䉣䊮䉳䊮䈫䈚䈩䈱 ਇౕว ᕈ⢻䈲䋿

ᓇ㗀䈭䈚

಄ළㅢ〝

ᕈ⢻䈲䋿

LE-X 䉣䊮䉳䊮ో♽⸃ᨆ䉕ታᣉ䈜䉎䈖䈫䈪䇮

቟ో䊶቟ቯ䊶቟ᔃ䈪 ⏕ታ䈭㐿⊒䉕ታ⃻䈜䉎

ȭDZȃȈǨȳǸȳᚐௌ২ᘐƷૼޒ᧏ JAXA-JEDI 23

቟ో ቟ቯ ቟ᔃ䈪 ⏕ታ䈭㐿⊒䉕ታ⃻䈜䉎

㻝㻟㻞