This work proposes a comparison between numerical and experimental velocity derived quantities in rectangular cavity flows. Two and three dimensional particle image velocimetry (PIV) measurements are conducted at Reynolds numbers between 6,500 and 19,500 over rectangular cavities of different aspect ratios. Experiments are compared with results from Computational Fluid Dynamics (CFD) simulations performed employing different turbulence modeling approach: Reynolds Averaged Navier Stokes (RANS), Detached Eddy Simulation (DES) and Large Eddy Simulation (LES). A dedicated uncertainty analysis of the PIV data is conducted for a conclusive validation of the turbulence models employed in the CFD simulations.
Numerical and experimental comparison of velocity derived quantities in rectangular cavity flows
ARPINO, Fausto;
2016-01-01
Abstract
This work proposes a comparison between numerical and experimental velocity derived quantities in rectangular cavity flows. Two and three dimensional particle image velocimetry (PIV) measurements are conducted at Reynolds numbers between 6,500 and 19,500 over rectangular cavities of different aspect ratios. Experiments are compared with results from Computational Fluid Dynamics (CFD) simulations performed employing different turbulence modeling approach: Reynolds Averaged Navier Stokes (RANS), Detached Eddy Simulation (DES) and Large Eddy Simulation (LES). A dedicated uncertainty analysis of the PIV data is conducted for a conclusive validation of the turbulence models employed in the CFD simulations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
