Frontier Simulation Software for Industrial Science

1
?????????2009?1? (4/15)-??????-

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2
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3
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• ?? ?????????? (2335 MJ/kg)
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• ?? ????????????? (3741 MJ/kg)
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• ????(LNG) ????? ???
• ??????(LPG) ?????? ?????????
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4
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• ??(??)??????? ????kg/kg
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• ???1/??? ?????(???)(F/A)st
• ??? f (F/A)/(F/A)st flt1 ????? fgt1 ????

?? ??? ?????? ??? ??? ???
C 12.01 CO2 CO2 2.66 11.48 3.66
H 1.01 H1/4O2 1/2H2O 7.94 34.21 8.94
S 32.06 SO2 SO2 1.00 4.30 2.00
????? O2 N2 CO2 Ar H2
???? 23.20 75.47 0.046 1.28 0.001
???? 20.90 78.03 0.030 0.933 0.01
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• ????Hh(????????)?????Hl(????)
• ???????? Gw?????????
• Tbt Hl /(Gw?cpm)T0 cpm ??????
• ???????? cpu ????????????
• TbtHl(Gw?cpu)( Tu -T0 ) /(Gw?cpm)T0
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• Tbt(Hl-Q) )/(Gw?cpm)T0
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• ???? ?tQc/Hl ?HQc-Hl ???????
• ??? ?tQe/SQi Qe/Hl ?HQe- SQi ???
• Qc ?????Qe ?????Qi ????

6
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• Flamelet-LES???????
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ex. combustion flow modeling
Turbulent mixing Flame dynamics Chemical
reaction
Structural design
Turbulence model Swirl / Recirculation Heat /
Mass flux
Flame propagation Premix / Diffusion
flame Emission / Blow out
Reaction model Rarefied combustion Alternative
fuels
Structural analysis Stress / vibration Thermal
striping Sound analysis Noise / instability
PDF approach /RANS
103
1
Detail of chemical element reaction
Flamelet approach /LES
Element reaction/DNS
NO OH CO
8
????(???????)
???? ?????? ???? 675,400 ????? 1D9.4mm ????
inlet1 C3H8 20.0 m/s inlet2 Air 66.0
m/s inlet3 Air 10.0 m/s ???? 1.010-5
sec/step Time step 40,000step ?????
?????? (????????????????) ????
Crank-Nicolson? ???? 8hour/10,000step
(HITACHI SR11000/K1 1node 16CPU) ???????????????1
.0m/s
?????????? ??
9
???? (??????)
???? 1.010-7 sec/step Time step 15,000
step ???? 23hour/10,000step (30???)
????? ??Zeldovich ????? C3H8?30,113???
??Zeldovich ?? N2O?NON O2N?NOO NOH?N
OH
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X11D
flamelet approach
X58D
30 equations
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Outlet
600mm
Inlet
Combustionchamber
Swirl nozzle
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????????(x/D3/8)
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???? ???? (x/D3/8)
12
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???????(GG0)
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x118mm