Data from: A geometric VOF method for interface flow simulations
Data files
Jun 10, 2024 version files 30.79 GB
-
README.md
-
SimPLICData.tar.gz
Abstract
This set is the original data used in the article titled "A Geometric VOF Method for Interface Flow Simulations". In this paper, a novel numerical technique designed for interface flow simulations using the Volume of Fluid (VOF) method on arbitrary unstructured meshes has been introduced. The method is called SimPLIC, which seamlessly integrates Piecewise Linear Interface Calculation (PLIC) and Simpson's rule. The main focus of the proposed method is to compute the volume of the primary phase that moves across a mesh face within a single time step. This is achieved by reconstructing the interface and assessing how the submerged face area evolves over time. Simpson's rule is employed to integrate the time evolution of this submerged face area, ensuring an accurate estimation of the volume of the transported primary phase. The method's robustness was validated by solving a spherical interface advection problem in a non-uniform three-dimensional flow across unstructured meshes with diverse cell types and dimensions. Key metrics such as volume conservation, shape retention, friction boundedness and solving efficiency were meticulously monitored and juxtaposed. Numerical outcomes underscored the precision and adequacy of the PLIC-VOF technique when complemented with Simpson's rule in advecting the interface. Furthermore, the SimPLIC method has been integrated into OpenFOAM v2312 as an unofficial extension and is now accessible to the community.
README: Data from: A Geometric VOF Method for Interface Flow Simulations
Summary
This set is the original data used in Dai, Dezhi, Haomin Yuan, Albert Y. Tong, and Adrian Tentner. "A Geometric VOF Method for Interface Flow Simulations." arXiv preprint arXiv:2402.05247 (2024).
Structure
The repository structure is shown below.
Notes:
- In
interfaceAdvection/polyMesh_splitWarpedFace
,isoAdvectos_plic_LS
andisoAdvectos_plic_RDF
are not included. - In
exactSolutions
, the utilityinitializeAlphaField
has been renamed assetVofField
atgeometricVofExt
. When replicating the exact solutions using the provided tool surface meshes:- Rename
./system/initializeAlphaFieldDict
as./system/setVofFieldDict
. - In Line 15 of
Allrun.genExactSolution
, replacefoamDictionary ./system/initializeAlphaFieldDict
withfoamDictionary ./system/setVofFieldDict
. - In Line 17 of
Allrun.genExactSolution
, replaceinitializeAlphaField -np 4 >> log.initializeAlphaField
withsetVofField -np 4 >> log.setVofField
.
- Rename
The mesh names and sizes are listed in the table below.
Mesh name | Mesh size $\Delta s,[m]$ |
---|---|
mesh_1 |
$2^{-4}$ |
mesh_2 |
$2^{-5}$ |
mesh_3 |
$2^{-6}$ |
mesh_4 |
$2^{-7}$ |
mesh_5 |
$2^{-8}$ |
Data Unpacking
The following are instructions for unpacking the dataset file SimPLICData.tar.gz
across different operating systems:
Linux
- Open a terminal.
- Use the
tar
command:- Navigate to the directory containing the
SimPLICData.tar.gz
file usingcd /path/to/file
. - Run the command
tar -xzf SimPLICData.tar.gz
. - This will extract the contents into the current directory.
- Navigate to the directory containing the
Windows
- Install the file archiver utility: Download and install 7-Zip (https://www.7-zip.org).
- Extract the file:
- Right-click on the
SimPLICData.tar.gz
file. - Select '7-Zip' > 'Extract here'. A file named
SimPLICData.tar
will be created under the same folder. - Right-click on the
SimPLICData.tar
file. - Select '7-Zip' > 'Extract here'.
- This will extract the contents into the current directory.
- Right-click on the
macOS
- Open Terminal: do one of the following:
- Click the Launchpad icon in the Dock, type
Terminal
in the search field, then clickTerminal
. - In the
Finder
, open the/Applications/Utilities
folder, then double-clickTerminal
.
- Click the Launchpad icon in the Dock, type
- Use the
tar
command:- Navigate to the directory containing the
SimPLICData.tar.gz
file usingcd /path/to/file
. - Run the command
tar -xzf filename.tar.gz
. - This will extract the contents into the current directory.
- Navigate to the directory containing the
For all systems, replace /path/to/file
with the actual path of the SimPLICData.tar.gz
file.
Data Reading
The tool surface meshes located in the toolSurfaceMesh
directory are in binary STL format. They can be read and visualized using ParaView, an open-source post-processing visualization software.
In the directories exactSolutions
, interfaceOrientationSchemes
, and interfaceAdvection
, only the files within the system
folder, the postProcessing
folder (except sampled surface meshes), and files named log.*
are in ASCII format and can be accessed using any standard text editor. All other data, including the meshes, simulation results, and sampled surface meshes in postProcessing
, are in binary format. These can be read and visualized using ParaView. To view a case, such as in exactSolutions/hexMesh/mesh_1
, create an empty *.foam
file in the directory and open it with ParaView.