Influence of Boundary Layer Thickness on Supersonic Flow and Combustion
In this paper,taking the scramjet combustion chamber as the background,using the three-dimensional GPU parallel program,the accuracy of the flamelet model is verified,and the changes of flow and combustion in the scramjet combustion chamber under different boundary layer thicknesses are simulated,and the research is carried out.The effect of boundary layer thickness on processes such as flow,mixing,and combustion is also explored.The results show that,for the combined effect of the thickness of the incoming boundary layer,especially when the thickness is larger than the diameter of the nozzle hole,it is believed that the thick boundary layer in the scramjet combustion chamber is helpful for the mixing of fuel,but has a negative impact on the combustion efficiency.
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