cryogenic engine,1 tonne thrust at 1
ambient pressure, Pc -35 Kg/cm2,)O/F-4.5,Ac/At-3,Pc/Pe-65,conical noozle with
half angle-15,L*-25 in ,contraction angle-25.
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# Table 1. Thermodynamic properties
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#
Parameter Injector
Nozzle inl Nozzle thr Nozzle exi Unit
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Pressure 3.4323 3.2762 1.9112 0.0528 MPa
Temperature 3094.1263 3083.3733 2871.3834 1545.1473 K
Enthalpy -1144.6808 -1200.7785 -2421.7450
-8316.6336 kJ/kg
Entropy 20.8875 20.9048 20.9048 20.9048 kJ/(kg·K)
Specific heat (p=const)
7.0362 7.0209 6.2064 3.7198 kJ/(kg·K)
Specific heat (V=const)
5.9861 5.9734 5.2620 2.9695 kJ/(kg·K)
Gas constant 0.7636 0.7634 0.7585 0.7499 kJ/(kg·K)
Molecular weight 10.8889 10.8910 10.9618 11.0872
Isentropic exponent 1.1647 1.1648 1.1727 1.2527
Density 1.4528 1.3918 0.8775 0.0456 kg/m³
Sonic velocity 1658.8181 1655.8221 1598.1589 1204.7800 m/s
Velocity 0.0000 334.9557 1598.1589 3787.3349 m/s
Mach number 0.0000 0.2023 1.0000 3.1436
Area ratio 3.0000 3.0000 1.0000 8.1254
Mass flux 466.1863 466.1863 1402.3998 172.5940 kg/(m²·s)
Viscosity 0.9221 0.9198 0.8727 0.5417
·10⁻⁴ kg/(m·s)
Conductivity, frozen 0.6067 0.6047 0.5642 0.3095 W/(m·K)
Specific heat (p=const), frozen
4.3811 4.3784 4.3217 3.7131 kJ/(kg·K)
Prandtl number, frozen 0.6659 0.6660 0.6684 0.6499
Conductivity, effective
1.3242 1.3184 1.0710 0.3110 W/(m·K)
Specific heat (p=const), effective
7.0362 7.0209 6.2064 3.7198 kJ/(kg·K)
Prandtl number, effective
0.4900 0.4898 0.5057 0.6481
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#
# Table 2. Fractions of the combustion
products
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#
Species Injector Injector
Nozzle inl Nozzle inl Nozzle thr Nozzle thr
Nozzle exi Nozzle exi
# mass fract mole fract mass fract
mole fract mass fract mole fract mass fract
mole fract
#---------------------------------------------------------------------------------------------------
H 0.0021440
0.0231615 0.0021269 0.0229813 0.0014339 0.0155943 0.0000025 0.0000270
H2 0.0777889
0.4201818 0.0777870 0.4202519 0.0779572 0.4239103 0.0787272 0.4329935
H2O 0.9009533
0.5445599 0.9012668 0.5448534 0.9099129 0.5536576
0.9212682 0.5669781
H2O2 0.0000027
0.0000009 0.0000026 0.0000008 0.0000009 0.0000003 0.0000000 0.0000000
HO2 0.0000044
0.0000015 0.0000042 0.0000014 0.0000013 0.0000004 0.0000000 0.0000000
O 0.0005224
0.0003555 0.0005109 0.0003478 0.0002026 0.0001388 0.0000000 0.0000000
O2 0.0005324
0.0001812 0.0005212 0.0001774 0.0002111 0.0000723 0.0000000 0.0000000
OH 0.0180519
0.0115577 0.0177804 0.0113860 0.0102801 0.0066259 0.0000021 0.0000014
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