Robust Implementation of High-Order Flux Approximation Schemes for Transonic Flows

摘要

The implementation of high-order rux approximation schemes in thernEZAir suite of structured CFD row solvers is discussed in the currentrnwork. This paper describes the weighted, essentially non-oscillatoryrn(WENO) and monotonicity-preserving (MP) methods that are employedrnfor obtaining up to 5th order of spatial accuracy. The numerical schemes,rnthe test cases, and the results of row simulations conducted to assessrnthe performance of the schemes are detailed. Special focus is given tornthe effects of varying smoothness indicators and other parameters ap-rnpearing in the high-order schemes on the convergence properties, andrnthe demonstrated accuracy of the row solver for subsonic and transonicrnrows. The results highlight the pivotal role of the ϵ parameter in obtain-rning a robust implementation that is suitable for a wide range of rows.