Dual Waverider to Integrate External and Internal Flows

Abstract

This paper proposes a method of integration of internal and external flow called the dual waverider. A threedimensional shock structure is designed to simultaneously satisfy the theories of internal and external waveriders. By using the infinite radius of curvature and omnidirectional center of curvature of a planar shock wave, external flows are made to transition smoothly to internal flows in the cross section. Moreover, a compression efficiency factor (CEF) is proposed to integrate internal and external flows in sections along the flow. Different values of the CEF represent internal/planar/external flows. An integration methodology for the dual waverider is then proposed by combining the two flows. By using this design, various structures of the dual waverider are obtained for different conditions. The theory of the dual waverider is also improved to develop one with double internal passages. Three-dimensional numerical simulations were performed on different configurations of the dual waverider to verify the correctness of the proposed design. The results showed good agreement with those obtained during the design process. Research on the aerodynamic characteristics of the configuration indicates that the dual waverider can integrate internal and external flows and can maintain a high lift-to-drag ratio.

Method of curved-shock characteristics with application to inverse design of supersonic flowfields

“…In addition, because Li et al. (2019) and Zheng et al. (2020) successfully solved the three-dimensional post-shock flowfield based on two-dimensional MOC, MOCC also has the potential to be applied in three-dimensional flows efficiently and accurately.…”

“…Li et al. (2019) and Zheng et al. (2020) proposed methods to calculate three-dimensional flowfields on the basis of two-dimensional MOC.…”

“…For instance, programmes for three-dimensional flowfield calculations proposed by Li et al. (2019) and Zheng et al. (2020) contain a series of local two-dimensional flowfield calculations.…”

“…Together with the other methods of Li et al. (2019) and Zheng et al. (2020), MOCC also has the potential to calculate a three-dimensional post-shock flowfield.…”

Investigation of aerodynamics education based on the waverider parameterized design procedure

“…The fundamental principle behind waverider design is that the body looks to be moving along with a shock wave attached to it and that the excessive stress at the back of the shock wave does now not leak via the main aspect to the pinnacle floor. [2].…”