2010
DOI: 10.1115/1.4003154
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Partially Averaged Navier–Stokes (PANS) Method for Turbulence Simulations: Flow Past a Circular Cylinder

Abstract: The objective of this study is to evaluate the capability of the partially averaged Navier–Stokes (PANS) method in a moderately high Reynolds number (ReD 1.4×105) turbulent flow past a circular cylinder. PANS is a bridging closure model purported for use at any level of resolution ranging from Reynolds-averaged Navier–Stokes to direct numerical simulations. The closure model is sensitive to the length-scale cut-off via the ratios of unresolved-to-total kinetic energy (fk) and unresolved-to-total dissipation (f… Show more

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Cited by 75 publications
(23 citation statements)
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“…A periodic condition is used in the spanwise direction of the hydrofoil. This treatment is an effective way to investigate the fundamental turbulent-vortex interaction, as reported recently by many researchers (Chen et al, 2010b;Lakshmipathy and Girimaji, 2010). The hydrofoil was located in a channel having a height of 1.28C.…”
Section: Simulation Setupmentioning
confidence: 99%
“…A periodic condition is used in the spanwise direction of the hydrofoil. This treatment is an effective way to investigate the fundamental turbulent-vortex interaction, as reported recently by many researchers (Chen et al, 2010b;Lakshmipathy and Girimaji, 2010). The hydrofoil was located in a channel having a height of 1.28C.…”
Section: Simulation Setupmentioning
confidence: 99%
“…In the early stages of PANS application, the unresolved-to-total ratio of turbulent kinetic energy f k was prescribed as a constant (Girimaji, 2006;Jeong and Girimaji, 2010;Lakshmipathy and Girimaji, 2010). As the assumption of constant f k is not reasonable, Girimaji and Abdol-Hamid (2005) proposed a formula for f k to become a variable parameter that depends upon the grid size and turbulence length scale.…”
Section: Model Formulationmentioning
confidence: 99%
“…It is a bridging closure model that can be used with any level of grid resolution between RANS and direct numerical simulation (DNS) (Girimaji, 2006). The PANS model has been successfully used in several turbulent separated flow problems, including flow past a square (Jeong and Girimaji, 2010) and circular (Lakshmipathy and Girimaji, 2010) cylinder, flow over a backward facing step (Frendi et al, 2006), flow around a simplified vehicle model (Han et al, 2013), and flow around a rudimentary landing gear (Krajnović et al, 2012). Nevertheless, it has been seldom applied in simulation of turbulent confined flows.…”
Section: Introductionmentioning
confidence: 99%
“…11. Instantaneous vortical structures Lakshmipathy and Girimaji (2010a)]. However, in this subsection we examine if PANS simulations are indeed successful in doing so in a complex, massively separated flow field such as that around a sphere as well.…”
Section: Influence Of Filter Parameter Fkmentioning
confidence: 99%