Large-eddy simulation of flow over an open cavity corresponding to the experimental setup of Liu and Katz (2008, “Cavitation Phenomena Occurring Due to Interaction of Shear Layer Vortices With the Trailing Corner of a Two-Dimensional Open Cavity,” Phys. Fluids, 20(4), p. 041702) is performed. The filtered, incompressible Navier–Stokes equations are solved using a co-located grid finite-volume solver with the dynamic Smagorinsky model for a subgrid-scale closure. The computational grid consists of around grid points with points clustered around the shear layer, and the boundary layer over the leading edge is resolved. The only input from the experimental data is the mean velocity profile at the inlet condition. The mean flow is superimposed with turbulent velocity fluctuations generated by solving a forced periodic duct flow at a freestream Reynolds number. The flow statistics, including mean and rms velocity fields and pressure coefficients, are compared with the experimental data to show reasonable agreement. The dynamic interactions between traveling vortices in the shear layer and the trailing edge affect the value and location of the pressure minima. Cavitation inception is investigated using two approaches: (i) a discrete bubble model wherein the bubble dynamics is computed by solving the Rayleigh–Plesset and the bubble motion equations using an adaptive time-stepping procedure and (ii) a scalar transport model for the liquid volume fraction with source and sink terms for phase change. Large-eddy simulation, together with the cavitation models, predicts that inception occurs near the trailing edge similar to that observed in the experiments. The bubble transport model captures the subgrid dynamics of the vapor better, whereas the scalar model captures the large-scale features more accurately. A hybrid approach combining the bubble model with the scalar transport is needed to capture the broad range of scales observed in cavitation.
Skip Nav Destination
e-mail: sva@engr.orst.edu
Article navigation
November 2010
Research Papers
Prediction of Small-Scale Cavitation in a High Speed Flow Over an Open Cavity Using Large-Eddy Simulation
Ehsan Shams,
Ehsan Shams
Computational Flow Physics Laboratory, School of Mechanical Industrial and Manufacturing Engineering,
Oregon State University
, 204 Rogers Hall, Corvallis, OR 97331
Search for other works by this author on:
Sourabh V. Apte
Sourabh V. Apte
Computational Flow Physics Laboratory, School of Mechanical Industrial and Manufacturing Engineering,
e-mail: sva@engr.orst.edu
Oregon State University
, 204 Rogers Hall, Corvallis, OR 97331
Search for other works by this author on:
Ehsan Shams
Computational Flow Physics Laboratory, School of Mechanical Industrial and Manufacturing Engineering,
Oregon State University
, 204 Rogers Hall, Corvallis, OR 97331
Sourabh V. Apte
Computational Flow Physics Laboratory, School of Mechanical Industrial and Manufacturing Engineering,
Oregon State University
, 204 Rogers Hall, Corvallis, OR 97331e-mail: sva@engr.orst.edu
J. Fluids Eng. Nov 2010, 132(11): 111301 (14 pages)
Published Online: November 9, 2010
Article history
Received:
September 9, 2009
Revised:
October 4, 2010
Online:
November 9, 2010
Published:
November 9, 2010
Citation
Shams, E., and Apte, S. V. (November 9, 2010). "Prediction of Small-Scale Cavitation in a High Speed Flow Over an Open Cavity Using Large-Eddy Simulation." ASME. J. Fluids Eng. November 2010; 132(11): 111301. https://doi.org/10.1115/1.4002744
Download citation file:
Get Email Alerts
Switching Events of Wakes Shed From Two Short Flapping Side-by-Side Cylinders
J. Fluids Eng (May 2025)
Related Articles
RANS Simulation of Ducted Marine Propulsor Flow Including Subvisual Cavitation and Acoustic Modeling
J. Fluids Eng (July,2006)
Modeling of Dissolved Gas Effect on Liquid Transients
J. Appl. Mech (January,2006)
Numerical Simulation of Vortex Cavitation in a Three-Dimensional Submerged Transitional Jet
J. Fluids Eng (July,2005)
Shear Cavitation in an Annular Jet Pump Under Recirculation Conditions
J. Fluids Eng (June,2016)
Related Proceedings Papers
Related Chapters
Cavitating Structures at Inception in Turbulent Shear Flow
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
A Reduced Order Gas Pressure Law for Single Acoustic Cavitation Bubbles
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Numerical Investigation of the Dynamics of Pressure Loading on a Solid Boundary from a Collapsing Cavitation Bubble
Proceedings of the 10th International Symposium on Cavitation (CAV2018)