Waverider Aerodynamic Configuration Design And Numerical Simulation Validation

Hypersonic Vehicle is the crucial development aspect in the realm of aerospacetechnology in the21st century. With the advantage of high L/D at hypersonic speed,waverider configuration has attracted widely attention and has become an improtant trend indesigning the shapes of hypersonic vehicles. A waverider is a hypersonic or supersonicvehicle with a shock wave attached along its leading edge. This attached shock wave limitsleakage from the lower flow region to the upper surface, thus allowing the potential for ahigh lift/drag ratio relative to conventional designs.This paper introduces the waverider design method and principle of generating; Themethod of characteristic theory with Taylor-Maccoll model are presented. By this method,we calculate the flowfield from the shock to the object surface. Based on the calculation,two waverider configurations including Cone-derived and Osculating-cone are designed.Three-dimensional numerical simulations are performed around waverider configurations toverify the design process implemented in this paper, and the flowfield of Osculating-conewaverider are calculated at off designpoints. Waverider performance at different flight Machnumber and attack angle conditions are researched.The CFD solution confirms the design theory of waverider. It can be stated that thedesign code can be used with confidence for preliminary design of waverider. At the designcondition, the shock are almost attached to the leading edge. The result also indicates thatthere is no significant performance degradation at off design Mach numbers.Waveriderperformance is changed greatly with attack angle change, and the waverider have the bestaerodynamic performance when it flight with a smaller positive attack angle.