A Modeling Method for Steady-state Model of Scramjet Engine
A technology of scrambling and steady-state model, applied in geometric CAD, special data processing applications, etc., can solve the problems of low model accuracy, low real-time performance, long calculation time, etc., and achieve good real-time performance and simplified two-dimensional flow relationship. , high precision effect
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[0050] Aiming at the deficiencies of the prior art, the present invention converts the two-dimensional airflow into one-dimensional airflow calculation by establishing a control body at the outlet section of the inlet duct and the isolation section, so as to improve the real-time calculation of the model; and further adopts the reference temperature method for further calculation. The airway boundary layer is corrected. At the same time, based on the difference of the airflow in the isolation section according to the back pressure of the isolation section, the present invention further divides the working state of the isolation section into a weak shock wave working state and an oblique shock wave working state for modeling respectively. And considering the viscosity of the isolation section, the boundary layer correction is carried out.
[0051] The reference temperature method is to approximate the boundary layer of the compressible fluid to the incompressible flat plate boun...
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