Abstract
In this work, a new level-set-based approach is presented and applied to compressible, multiphase flows. Using a species-mass-conservation-based level-set transport equation, several advantages over signed-distance-function- based methods are demonstrated. Specific improvements include a ghost-fluid-free method for highly compressible problems, extensions to an arbitrary number of species, and finite-rate chemistry mass transfer modeling. While maintaining higher-order numerics, the approach is applicable to three-dimensional, time-accurate/steady, turbulent simulations. Herein, the method is applied to a flow solver that fully couples the mass, momentum, energy, and level-set transport equation; although the methods are equally applicable to segregated flow solvers. The methods are tested for ventilated supercavities, natural cavitation (incompressible, compressible, and thermal), and shock-induced boiling. Lastly, new reinitialization methods are developed specific to cavitating flows that decrease the interface diffusion where needed, while retaining an ability to admit subgrid-scale mixtures. Such an approach enables a more physical solution method for certain classes of multiphase flows. This formulation of the level-set approach is a general, valid, method that could easily be incorporated into any species-mass conservation solver.
| Original language | English (US) |
|---|---|
| Title of host publication | 19th AIAA Computational Fluid Dynamics Conference |
| State | Published - Dec 1 2009 |
| Event | 19th AIAA Computational Fluid Dynamics Conference - San Antonio, TX, United States Duration: Jun 22 2009 → Jun 25 2009 |
Publication series
| Name | 19th AIAA Computational Fluid Dynamics Conference |
|---|
Other
| Other | 19th AIAA Computational Fluid Dynamics Conference |
|---|---|
| Country | United States |
| City | San Antonio, TX |
| Period | 6/22/09 → 6/25/09 |
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All Science Journal Classification (ASJC) codes
- Engineering (miscellaneous)
- Automotive Engineering
Cite this
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A level-set approach for compressible, multiphase fluid flows with mass transfer. / Kinzel, Michael P.; Lindau, Jules Washington V.; Kunz, Robert Francis.
19th AIAA Computational Fluid Dynamics Conference. 2009. 2009-4152 (19th AIAA Computational Fluid Dynamics Conference).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - A level-set approach for compressible, multiphase fluid flows with mass transfer
AU - Kinzel, Michael P.
AU - Lindau, Jules Washington V.
AU - Kunz, Robert Francis
PY - 2009/12/1
Y1 - 2009/12/1
N2 - In this work, a new level-set-based approach is presented and applied to compressible, multiphase flows. Using a species-mass-conservation-based level-set transport equation, several advantages over signed-distance-function- based methods are demonstrated. Specific improvements include a ghost-fluid-free method for highly compressible problems, extensions to an arbitrary number of species, and finite-rate chemistry mass transfer modeling. While maintaining higher-order numerics, the approach is applicable to three-dimensional, time-accurate/steady, turbulent simulations. Herein, the method is applied to a flow solver that fully couples the mass, momentum, energy, and level-set transport equation; although the methods are equally applicable to segregated flow solvers. The methods are tested for ventilated supercavities, natural cavitation (incompressible, compressible, and thermal), and shock-induced boiling. Lastly, new reinitialization methods are developed specific to cavitating flows that decrease the interface diffusion where needed, while retaining an ability to admit subgrid-scale mixtures. Such an approach enables a more physical solution method for certain classes of multiphase flows. This formulation of the level-set approach is a general, valid, method that could easily be incorporated into any species-mass conservation solver.
AB - In this work, a new level-set-based approach is presented and applied to compressible, multiphase flows. Using a species-mass-conservation-based level-set transport equation, several advantages over signed-distance-function- based methods are demonstrated. Specific improvements include a ghost-fluid-free method for highly compressible problems, extensions to an arbitrary number of species, and finite-rate chemistry mass transfer modeling. While maintaining higher-order numerics, the approach is applicable to three-dimensional, time-accurate/steady, turbulent simulations. Herein, the method is applied to a flow solver that fully couples the mass, momentum, energy, and level-set transport equation; although the methods are equally applicable to segregated flow solvers. The methods are tested for ventilated supercavities, natural cavitation (incompressible, compressible, and thermal), and shock-induced boiling. Lastly, new reinitialization methods are developed specific to cavitating flows that decrease the interface diffusion where needed, while retaining an ability to admit subgrid-scale mixtures. Such an approach enables a more physical solution method for certain classes of multiphase flows. This formulation of the level-set approach is a general, valid, method that could easily be incorporated into any species-mass conservation solver.
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M3 - Conference contribution
SN - 9781563479755
T3 - 19th AIAA Computational Fluid Dynamics Conference
BT - 19th AIAA Computational Fluid Dynamics Conference
ER -