Modeling of Radiation Heat Transfer in Liquid Rocket Engines

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Radiative Nodal PointsNodal points in axialdirection, the sameas stationsNodal points inradial direction
Total Exchange FactorsAccount for wall reflection and gas scatteringDSS[ { [ ] } ]−1−1I − dss + dsgωW I − dggωW dgs ρW dss + dsgωW [ I − dss W ]{−1= ω dgs}α0g0g−1[ I − dggωW ] dgs I − ρW dss + dsgωW [ I − dgg W ]s[ { }] −1-1dgs αDGS = ω0gs0g0g0g0gWall heat flux at station nq2nr+ mm⋅nrr, n= ∑ ws,jDSjSnEs,j+ ∑ wg,jDGjSnEg,j−j=1j=1Es= εσT4n s nEgj=4 (1 ) 4Kt−ωl 0σTgjEs,nThis model is built in the TDK’s radiation module (RAD2005)
Page 1 and 2: Modeling of Radiation HeatTransfer
Page 3 and 4: Previous Works• Hammad, K.J., and
Page 5: Exchange Factors betweengas and sur
Page 9 and 10: Plank-Mean Properties for CO 20.40.
Page 11 and 12: Absorption Coefficient of SootWhen
Page 13 and 14: Results for a LH2-LO2 Engine(SSME)T
Page 15 and 16: Effects of radiation on the walltem
Page 17 and 18: Effects of radiation on coolantstag
Page 19 and 20: Contour of the RP1-LOX engine108Lin
Page 21 and 22: Effects of radiation on the walltem
Page 23 and 24: Effects of radiation on the coolant
Page 25 and 26: Concluding Remarks• The effects o
Page 27 and 28: Concluding Remarks• For the RP1/L

Modeling of Radiation Heat Transfer in Liquid Rocket Engines

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