Modeling and simulation of a GOX/kerosene subscale rocket combustion chamber with film cooling

Höglauer, C.; Kniesner, Björn; Knab, O.; Schlieben, Gregor; Kirchberger, Christoph; Silvestri, Simona; Haidn, Oskar

doi:10.1007/s12567-015-0096-y

Cited by 5 publications

(1 citation statement)

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“…Studying the thermal effect of gas on the engine wall plays a key role in the design of liquid rocket engines. In the design stage, accurately predicting the wall temperature of a rocket engine can help to design efficient cooling methods, especially for reusable engines, which can further predict their life cycle [1,2]. However, due to the complexity of the mechanism and although much research has already been carried out on the mechanism of heat transfer in the combustion chamber, especially the mechanism of heat transfer between gas and solid, there is no systematic model for the mechanism of gas and engine wall in each type of liquid rocket engine and the existing models can only play a predictive role.…”

Section: Introductionmentioning

confidence: 99%

The Confirmation of Thermal Boundary Parameters in an Oxygen Kerosene Fuel-Rich Rocket Engine

et al. 2022

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The thermal environment is an important factor in the design of liquid rockets. In this paper, theoretical analysis, numerical simulation and experimental testing are conducted to study the boundary thermal characteristics of a GOX/kerosene liquid rocket motor with a total flow rate of 120 g/s and an oxygen-fuel ratio of 1:1. We measured the axial temperature in different positions in the combustor using thermocouples and the heat flux using a flux meter. We found that the heat flux at 182 mm increases by 6.8% when a carbon deposit exists. For the theoretical results, after correcting the thermal conductivity by the volume fraction of carbon deposition, the theoretical heat flux (1.11 MW/m2, using the corrected thermal conductivity) and the numerical result (0.89 MW/m2, considering the injectors) are similar to the experimental value (0.937 MW/m2). This study validates the accuracy of theoretical and simulation calculation in this case, and provides verification data for future numerical calculation, as well as data for setting gas temperature at the wall in the simulation of the gas phase.

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Section: Introductionmentioning

confidence: 99%