Development of a shock-fitting field-panel method for 3D transonic flows

摘要

The paper presents the development of a shock-fitting field-panel method for three-dimension (3D) transonic flows. In this method, the full-potential equation, written in the form of the Poisson's equation, is solved by integral equation field-panel method. The solution consists of a wing surface source panel integral term, a field-volume panel integral term of compressibility over a small limited domain, and a shock panel integral term. Due to the non-linearity of flows, solutions are obtained through an iterative procedure. Instead of using a field-panel refinement procedure, a shock-fitting technique is used to fit the shock. Finally, numerical examples are provided to demonstrate the accuracy of the method.