An unstructured, shock-fitting algorithm, originally developed to simulate inviscid flows, has been further developed to make it capable of dealing withshock-wave/boundary-layer interactions (SWBLI). This paper illustrates thenewly implemented algorithmic features of this technique and its applicationto two-dimensional flow-configurations representative of three different SWBLI patterns. A detailed comparison between the numerical solutions obtained us-ing the aforementioned shock-fitting and a “state-of-the-art” shock-capturingtechnique on nearly identical meshes will also be given. More specifically, qualitative and quantitative grid-convergence analyses will be presented to show the significant achievements in terms of reduced discretization error and improvedorder-of-convergence that shock-fitting delivers, compared to shock-capturing.

Numerical simulation of shock/boundary-layer interaction using an unstructured shock-fitting technique / Assonitis, Alessia; Paciorri, Renato; Bonfiglioli, Aldo. - In: COMPUTERS & FLUIDS. - ISSN 0045-7930. - 228:(2021), pp. 1-23. [10.1016/j.compfluid.2021.105058]

Numerical simulation of shock/boundary-layer interaction using an unstructured shock-fitting technique

Assonitis, Alessia
Primo
Software
;
Paciorri, Renato
Secondo
Conceptualization
;
2021

Abstract

An unstructured, shock-fitting algorithm, originally developed to simulate inviscid flows, has been further developed to make it capable of dealing withshock-wave/boundary-layer interactions (SWBLI). This paper illustrates thenewly implemented algorithmic features of this technique and its applicationto two-dimensional flow-configurations representative of three different SWBLI patterns. A detailed comparison between the numerical solutions obtained us-ing the aforementioned shock-fitting and a “state-of-the-art” shock-capturingtechnique on nearly identical meshes will also be given. More specifically, qualitative and quantitative grid-convergence analyses will be presented to show the significant achievements in terms of reduced discretization error and improvedorder-of-convergence that shock-fitting delivers, compared to shock-capturing.
2021
shock-fitting; shock-capturing; shock-wave/boundary-layer interaction
01 Pubblicazione su rivista::01a Articolo in rivista
Numerical simulation of shock/boundary-layer interaction using an unstructured shock-fitting technique / Assonitis, Alessia; Paciorri, Renato; Bonfiglioli, Aldo. - In: COMPUTERS & FLUIDS. - ISSN 0045-7930. - 228:(2021), pp. 1-23. [10.1016/j.compfluid.2021.105058]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1556581
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