On the Scope of Lagrangian Vortex Methods for Two-Dimensional Flow Simulations and the POD Technique Application for Data Storing and Analyzing

Autor:	Irina Soldatova, Kseniia Kuzmina, Yulia Izmailova, Ilia K. Marchevsky
Rok vydání:	2021
Předmět:	vortex particle method Airfoil Blasius boundary layer General Physics and Astronomy lcsh:Astrophysics 02 engineering and technology Computational fluid dynamics 01 natural sciences Article open source code 010305 fluids & plasmas Physics::Fluid Dynamics symbols.namesake proper orthogonal decomposition channel with backward facing step 0203 mechanical engineering Condensed Matter::Superconductivity lcsh:QB460-466 0103 physical sciences lcsh:Science Physics business.industry Internal flow Reynolds number Mechanics impulsively started cylinder lcsh:QC1-999 Vortex 020303 mechanical engineering & transports Flow (mathematics) symbols Computer Science::Programming Languages Two-dimensional flow lcsh:Q viscous vortex domain method business lcsh:Physics
Zdroj:	Entropy Entropy, Vol 23, Iss 118, p 118 (2021) Volume 23 Issue 1
ISSN:	1099-4300
DOI:	10.3390/e23010118
Popis:	The possibilities of applying the pure Lagrangian vortex methods of computational fluid dynamics to viscous incompressible flow simulations are considered in relation to various problem formulations. The modification of vortex methods&mdash the Viscous Vortex Domain method&mdash is used which is implemented in the VM2D code developed by the authors. Problems of flow simulation around airfoils with different shapes at various Reynolds numbers are considered: the Blasius problem, the flow around circular cylinders at different Reynolds numbers, the flow around a wing airfoil at the Reynolds numbers 104 and 105, the flow around two closely spaced circular cylinders and the flow around rectangular airfoils with a different chord to the thickness ratio. In addition, the problem of the internal flow modeling in the channel with a backward-facing step is considered. To store the results of the calculations, the POD technique is used, which, in addition, allows one to investigate the structure of the flow and obtain some additional information about the properties of flow regimes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6e20914c358267b82034ebb8dd00559 https://doi.org/10.3390/e23010118 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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