Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

A physics based multiscale modeling of cavitating flows

Journal Article · · Computers and Fluids
Here, numerical modeling of cavitating bubbly flows is challenging due to the wide range of characteristic lengths of the physics at play: from micrometers (e.g., bubble nuclei radius) to meters (e.g., propeller diameter or sheet cavity length). To address this, we present here a multiscale approach which integrates a Discrete Singularities Model (DSM) for dispersed microbubbles and a two-phase Navier Stokes solver for the bubbly medium, which includes a level set approach to describe large cavities or gaseous pockets. Inter-scale schemes are used to smoothly bridge the two transitioning subgrid DSM bubbles into larger discretized cavities. This approach is demonstrated on several problems including cavitation inception and vapor core formation in a vortex flow, sheet-to-cloud cavitation over a hydrofoil, cavitation behind a blunt body, and cavitation on a propeller. These examples highlight the capabilities of the developed multiscale model in simulating various form of cavitation.
Research Organization:
Lawrence Berkeley National Laboratory, Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
US Department of the Navy, Office of Naval Research (ONR); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
OSTI ID:
1462719
Journal Information:
Computers and Fluids, Journal Name: Computers and Fluids Journal Issue: C Vol. 145; ISSN 0045-7930
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (57)

An unsteady single‐phase level set method for viscous free surface flows journal June 2006
A Non-oscillatory Eulerian Approach to Interfaces in Multimaterial Flows (the Ghost Fluid Method) journal July 1999
A Lagrangian–Eulerian Mapping Solver for Direct Numerical Simulation of Bubble-Laden Turbulent Shear Flows Using the Two-Fluid Formulation journal September 1999
Level Set Methods: An Overview and Some Recent Results journal May 2001
Physalis: A New o(N) Method for the Numerical Simulation of Disperse Systems: Potential Flow of Spheres journal February 2001
A Front-Tracking Method for the Computations of Multiphase Flow journal May 2001
Modeling air entrainment and transport in a hydraulic jump using two-fluid RANS and DES turbulence models journal July 2011
Prediction of tip vortex cavitation inception using coupled spherical and nonspherical bubble models and Navier?Stokes computations journal January 2004
A numerical method for solving incompressible viscous flow problems journal August 1967
Approximate Riemann solvers, parameter vectors, and difference schemes journal October 1981
Spatial averaging in the mechanics of heterogeneous and dispersed systems journal October 1979
Momentum interactions in dispersed flow: an averaging and a variational approach journal January 1992
Shock capturing, level sets, and PDE based methods in computer vision and image processing: a review of Osher’s contributions journal March 2003
An improved level set method for incompressible two-phase flows journal June 1998
Multiscale issues in DNS of multiphase flows journal March 2010
Direct numerical simulation of particle clustering in gas–solid flow with a macro-scale particle method journal January 2009
Direct numerical simulation of sub-grid structures in gas–solid flow—GPU implementation of macro-scale pseudo-particle modeling journal October 2010
Spherical bubble dynamics in a bubbly medium using an Euler–Lagrange model journal May 2015
Spectral analysis of turbulence based on the DNS of a channel flow journal April 2010
Multiscale simulations of primary atomization journal December 2010
Two-fluid modeling of bubbly flows around surface ships using a phenomenological subgrid air entrainment model journal December 2011
A parallel adaptive mesh method for the numerical simulation of multiphase flows journal October 2013
GPU-accelerated adaptive particle splitting and merging in SPH journal July 2013
A DNS study of laminar bubbly flows in a vertical channel journal June 2006
A coupled model for simulation of the gas–liquid two-phase flow with complex flow patterns journal April 2010
A multi-field two-fluid concept for transitions between different scales of interfacial structures journal December 2012
Modeling merging and breakup in the moving mesh interface tracking method for multiphase flow simulations journal April 2009
On the direct numerical simulation of two-phase flows journal May 2009
Numerical research on drag reduction by ventilated partial cavity based on two-fluid model journal December 2011
A multi-fluid modelling approach for the air entrainment and internal bubbly flow region in hydraulic jumps journal November 2014
Focusing on the meso-scales of multi-scale phenomena—In search for a new paradigm in chemical engineering journal December 2010
Quasi-one-dimensional steady-state cavitating nozzle flows journal January 2001
Direct numerical simulation of a three-dimensional spatially developing bubble-laden mixing layer with two-way coupling journal February 2001
Numerical simulation of turbulent drag reduction using micro-bubbles journal October 2002
On the physical mechanisms of drag reduction in a spatially developing turbulent boundary layer laden with microbubbles journal January 1999
The lift on a small sphere in a slow shear flow journal June 1965
Two-phase flow equations for a dilute dispersion of gas bubbles in liquid journal November 1984
A new modelling of cavitating flows: a numerical study of unsteady cavitation on a hydrofoil section journal July 1992
Direct simulation of particle dispersion in a decaying isotropic turbulence journal September 1992
Direct numerical simulations of bubbly flows. Part 1. Low Reynolds number arrays journal December 1998
Capture and inception of bubbles near line vortices journal January 2005
Investigation and modeling of bubble-bubble interaction effect in homogeneous bubbly flows journal June 2010
On the two‐way interaction between homogeneous turbulence and dispersed solid particles. I: Turbulence modification journal July 1993
Ensemble phase-averaged equations for bubbly flows journal September 1994
Direct numerical simulations of bubble-laden turbulent flows using the two-fluid formulation journal March 1998
Continuum Theories of Mixtures: Applications journal January 1976
Continuum Theories of Mixtures: Basic Theory and Historical Development journal January 1976
The Use of Cavitating Jets to Oxidize Organic Compounds in Water journal May 2000
Scaling Effect on Prediction of Cavitation Inception in a Line Vortex Flow journal January 2003
Characterization of the Content of the Cavity Behind a High-Speed Supercavitating Body journal July 2006
Modeling Hydrodynamic Nonequilibrium in Cavitating Flows journal March 1996
Dynamical Interactions in a Multi-Bubble Cloud journal December 1992
Pressure Field Generated by Nonspherical Bubble Collapse journal September 1983
Thrust Enhancement Through Bubble Injection Into an Expanding-Contracting Nozzle With a Throat journal May 2014
Examination of Cholesterol oxidase attachment to magnetic nanoparticles journal January 2005
A Study of Two-Phase Flow in Inclined Pipes journal May 1973
Direct and iterative algorithms for the three-dimensional Euler equations journal May 1995

Similar Records

Nuclei and propeller cavitation inception
Book · Fri Dec 30 23:00:00 EST 1994 · OSTI ID:100927

Vortex cavitation: A progress report
Book · Fri Dec 30 23:00:00 EST 1994 · OSTI ID:100911

Observations of the interaction of cavitation bubbles with attached cavities
Book · Fri Dec 30 23:00:00 EST 1994 · OSTI ID:100931