Inlet conditions for large eddy simulation of gas-turbine swirl injectors
Inlet conditions for large eddy simulation of gas-turbine swirl injectors
- Neue Suche nach: Baba-Ahmadi, M.H.
- Neue Suche nach: Tabor, G.R.
- Neue Suche nach: Baba-Ahmadi, M.H.
- Neue Suche nach: Tabor, G.R.
In this paper, the authors present a novel technique for generating swirl inlets for large eddy simulation. The velocity a short distance downstream of the inlet to the main domain is sampled and the flow velocity data are reintroduced back into the domain inlet, creating an inlet section integrated into the main domain in which turbulence can develop. Additionally, variable artificial body forces and velocity corrections are imposed in this inlet section, with feedback control to force the flow toward desired swirl, mean, and turbulent profiles. The method was applied to flow in an axisymmetric sudden expansion, with and without swirl at the inlet, and compared against experimental and literature large eddy simulation data and against similar results in the literature. The method generates excellent results for this case and is elegant and straightforward to implement.
Dokumentinformationen
Inlet conditions for large eddy simulation of gas-turbine swirl injectors
Eintrittsbedingungen für die Großwirbelsimulation von Gasturbinen-Einspritzdüsen
AIAA Journal ; 46 , 7 ; 1782-1790
2008
9 Seiten, 11 Bilder, 29 Quellen
Aufsatz (Zeitschrift)
Englisch
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