Minseo LEE, Hyung Ju LEE

DOI Number: XXX-YYY-ZZZ

Conference number: HiSST 2024- 0060

In a cooling channel of a regenerative cooling system of hypersonic cruise vehicles, a hydrocarbon aviation fuel is heated to a supercritical state, which leads to complex interactions between fluid flow, heat transfer, and thermal decomposition reactions. In order to understand such a complicated phenomenon, numerical analyses are conducted investigating flow resistance and heat transfer characteristics of hydrocarbon fuel under supercritical conditions. The results showed the pressure drop increase and the Heat Transfer Deterioration (HTD) due to the abrupt variation in thermophysical properties above the pseudo-critical temperature. Further numerical analyses are planned on the interaction characteristics of supercritical fuel flow, heat transfer, and endothermic decomposition, by incorporating a pyrolysis reaction model of exo-THDCPD, which is going to be developed in a companion study. Then, the simulation results will be compared with experimental results of heated channel flows in supercritical conditions.

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In Categories: 1.Events, HiSST 2024, Thermal and Energy Management
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