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regenerative-cooling
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Thermal Analysis of Regenerative Cooling in Liquid Rocket Engines
, M.Sc. Thesis Sharif University of Technology ; Kebriaei, Azadeh (Supervisor)
Abstract
In this thesis to simulate the behavior of liquid engine Thrust chamber of hot gas from a quasi one dimensional code used when the effects of the heat transfer and friction in those terma. As well as during the regenerative channel is simulated by considering the equation’s of continuity, momentum and energy for one dimensional, effects of increase temperature, pressure drop, change the density of coolant flow resulting from the warming which is visible along the way to increase the accuracy of calculation of the thermal flux output of the engine, use a suitable model for unclear boiling in consideration of heat transfer coefficient used coolant flow it has been. As well as coupling of heat...
Heat transfer aspects of regenerative-cooling in methane-based propulsion systems
, Article Aerospace Science and Technology ; Volume 82-83 , 2018 , Pages 412-424 ; 12709638 (ISSN) ; Ebrahimi, A ; Sharif University of Technology
Abstract
In the present article, thermal behavior and heat transfer deterioration (HTD) of transcritical methane as well as the fluid state change in regenerative cooling with straight/curved rectangular channels are studied numerically. Simulations are conducted with a finite-volume based CFD solver utilizing reliable turbulence models and thermo-fluidic relations in transcritical conditions. The experimental and numerical results of hydrogen inside a heated tube in the literature are used for validation. The effects of mass flow rate, outlet pressure, wall temperature, surface roughness, and the channel geometry on the thermal behavior of the coolant fluid are studied in detail. According to the...