Multidimensional transonic shock waves and free boundary problems

We are concerned with free boundary problems arising from the analysis of multidimensional transonic shock waves for the Euler equations in compressible fluid dynamics. In this expository paper, we survey some recent developments in the analysis of multidimensional transonic shock waves and correspo...

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Egile Nagusiak: Chen, G-QG, Feldman, M
Formatua: Journal article
Hizkuntza:English
Argitaratua: World Scientific Pub Co Pte Ltd 2022
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author Chen, G-QG
Feldman, M
author_facet Chen, G-QG
Feldman, M
author_sort Chen, G-QG
collection OXFORD
description We are concerned with free boundary problems arising from the analysis of multidimensional transonic shock waves for the Euler equations in compressible fluid dynamics. In this expository paper, we survey some recent developments in the analysis of multidimensional transonic shock waves and corresponding free boundary problems for the compressible Euler equations and related nonlinear partial differential equations (PDEs) of mixed type. The nonlinear PDEs under our analysis include the steady Euler equations for potential flow, the steady full Euler equations, the unsteady Euler equations for potential flow, and related nonlinear PDEs of mixed elliptic-hyperbolic type. The transonic shock problems include the problem of steady transonic flow past solid wedges, the von Neumann problem for shock reflection-diffraction, and the Prandtl-Meyer problem for unsteady supersonic flow onto solid wedges. We first show how these longstanding multidimensional transonic shock problems can be formulated as free boundary problems for the compressible Euler equations and related nonlinear PDEs of mixed type. Then we present an effective nonlinear method and related ideas and techniques to solve these free boundary problems. The method, ideas, and techniques should be useful to analyze other longstanding and newly emerging free boundary problems for nonlinear PDEs.
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spelling oxford-uuid:fa0566a9-6f2e-4b13-a8ac-056d7dd1e90d2023-11-30T15:29:34ZMultidimensional transonic shock waves and free boundary problemsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fa0566a9-6f2e-4b13-a8ac-056d7dd1e90dEnglishSymplectic ElementsWorld Scientific Pub Co Pte Ltd2022Chen, G-QGFeldman, MWe are concerned with free boundary problems arising from the analysis of multidimensional transonic shock waves for the Euler equations in compressible fluid dynamics. In this expository paper, we survey some recent developments in the analysis of multidimensional transonic shock waves and corresponding free boundary problems for the compressible Euler equations and related nonlinear partial differential equations (PDEs) of mixed type. The nonlinear PDEs under our analysis include the steady Euler equations for potential flow, the steady full Euler equations, the unsteady Euler equations for potential flow, and related nonlinear PDEs of mixed elliptic-hyperbolic type. The transonic shock problems include the problem of steady transonic flow past solid wedges, the von Neumann problem for shock reflection-diffraction, and the Prandtl-Meyer problem for unsteady supersonic flow onto solid wedges. We first show how these longstanding multidimensional transonic shock problems can be formulated as free boundary problems for the compressible Euler equations and related nonlinear PDEs of mixed type. Then we present an effective nonlinear method and related ideas and techniques to solve these free boundary problems. The method, ideas, and techniques should be useful to analyze other longstanding and newly emerging free boundary problems for nonlinear PDEs.
spellingShingle Chen, G-QG
Feldman, M
Multidimensional transonic shock waves and free boundary problems
title Multidimensional transonic shock waves and free boundary problems
title_full Multidimensional transonic shock waves and free boundary problems
title_fullStr Multidimensional transonic shock waves and free boundary problems
title_full_unstemmed Multidimensional transonic shock waves and free boundary problems
title_short Multidimensional transonic shock waves and free boundary problems
title_sort multidimensional transonic shock waves and free boundary problems
work_keys_str_mv AT chengqg multidimensionaltransonicshockwavesandfreeboundaryproblems
AT feldmanm multidimensionaltransonicshockwavesandfreeboundaryproblems