Vortex in cell method for exterior problems

• Autorzy: Kudela H. , Kozłowski T.

Warianty tytułu

PL

Metoda cząstek wirowych dla zagadnień zewnętrznych

• Języki publikacji: EN

Abstrakty

EN

The ”vortex in cell” method was used to model the flow past a solid body. Problems connected with flows past a body belong to the category of exterior problems. The main difficulty here is to establish the boundary condition far from the body, to solve equations of motion on the numerical mesh. The mesh requires a limited calculation area and the boundary condition far from the body. A method of obtaining the accurate boundary condition in such flows was presented. Testing calculations were performed for the flow past a cylinder for a wide range of Reynolds numbers. The flow past an ellipse was also performed. A good agreement with experimental results and calculations of other researchers was obtained.

PL

Do obliczeń zastosowano metodę cząstek wirowych typu „wir w komórce”. Rzeczywisty obszar przepływu transformowano używając odwzorowania konforemnego. Opisano sposób wyznaczania zewnętrznego warunku brzegowego daleko od ciała, wykorzystując asymptotyczne własności rozwiązania równania Laplace’a. Wyniki numeryczne przedstawiono dla opływu walca w szerokim przedziale liczb Reynoldsa (550 < Re > 9500) oraz cienkiej elipsy. Obliczenia porównano z danymi eksperymentalnymi i wynikami numerycznymi innych badaczy, uzyskując bardzo dobrą zgodność.

Słowa kluczowe

EN

vortex method; flow past cylinder; external problem

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2009
• Tom: Vol. 47 nr 4
• Strony: 779--796
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Kudela H.

autor

Kozłowski T.

• Wroclaw University of Technology, Department of Numerical Flow Modelling, Wrocław, Poland,

Bibliografia

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