Waverider design and analysis based on parametric shock generating body
The characteristics of the reference flow field are the core factors affecting the shape and aerodynamic characteristics of the waverider,and how to generate a waverider that is more in line with the needs by improving the reference flow field is still a design problem.The shape of the shock generating body is designed by parametric method,and the shock-fitting method is used to solve the reference flow field,and the shape of the shock generating body is controlled by changing the parameters,which then affects the characteristics of the reference flow field.The effects of the horizontal busbar form,head passivation radius,and bottom profile shape of the shock generating body on the obtained waverider are analyzed.The results show that under the condition that the shock generating body length,width and height are fixed,the horizontal bus bar adopts the appropriate external expansion form,and the waverider with a larger lift-to-drag ratio can be obtained,and the pressure center is further forward.The larger the radius of the blunt head,the smaller the lift-to-drag ratio of the obtained waverider,the larger the volume ratio,and the pressure center is further forward.The greater the degree of expansion outside the bottom type,the smaller the lift-to-drag ratio of the obtained waverider,the larger the volume ratio,and the difference in the position of the pressure center is not much.
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