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Merge pull request #175 from ramin1728/banarySystemOfParticles 

binarySystemOfParticles is Updated.
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PhasicFlow 2025-02-24 12:33:33 +03:30 committed by GitHub
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7 changed files with 77 additions and 98 deletions
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28
tutorials/sphereGranFlow/binarySystemOfParticles/README.md
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@ -1,3 +1,5 @@
# Problem definition # Problem definition
A rotating drum is randomly filled with two particle sizes and rotated to observe particle segregation. The focus of this tutorial is to show how to use the preprocessing tool `particlesPhasicFlow` to create the initial mixture of small and large particles. A rotating drum is randomly filled with two particle sizes and rotated to observe particle segregation. The focus of this tutorial is to show how to use the preprocessing tool `particlesPhasicFlow` to create the initial mixture of small and large particles.
@ -15,21 +17,21 @@ a view of the rotating drum with small and large particles after 7 seconds of ro
# Case setup # Case setup
In the file `caseSetup/sphereShape` two particle types with the names `smallSphere` and `largeSphere` and the diameters 3 and 5 mm are defined. In the file `caseSetup/shapes` two particle types with the names `smallSphere` and `largeSphere` and the diameters 3 and 5 mm are defined.
[Simulation case setup files can be found in tutorials/sphereGranFlow folder.](https://github.com/PhasicFlow/phasicFlow/tree/main/tutorials/sphereGranFlow/binarySystemOfParticles) [Simulation case setup files can be found in tutorials/sphereGranFlow folder.](https://github.com/PhasicFlow/phasicFlow/tree/main/tutorials/sphereGranFlow/binarySystemOfParticles)
### Shape definition ### Shape definition
In the file `caseSetup/sphereShape` two particle types with the names `smallSphere` and `largeSphere` and the diameters 3 and 5 mm are defined. In the file `caseSetup/shapes` two particle types with the names `smallSphere` and `largeSphere` and the diameters 3 and 5 mm are defined.
<div align="center"> <div align="center">
in <b>caseSetup/sphereShape</b> file in <b>caseSetup/sphereShape</b> file
</div> </div>
```C++ ```C++
names (smallSphere largeSphere); // names of shapes names (smallSphere largeSphere); // names of shapes
diameters (0.003 0.005); // diameter of shapes (m) diameters (0.003 0.005); // diameter of shapes (m)
materials (prop1 prop1); // material names for shapes materials (prop1 prop1); // material names for shapes
``` ```
### Positioning and initial mixture ### Positioning and initial mixture
@ -47,9 +49,9 @@ positionParticles
method ordered; // other options: random or empty method ordered; // other options: random or empty
orderedInfo orderedInfo
{ {
diameter 0.005; // minimum space between centers of particles diameter 0.005; // minimum space between centers of particles
numPoints 30000; // number of particles in the simulation numPoints 30000; // number of particles in the simulation
axisOrder (z x y); // axis order for filling the space with particles axisOrder (z x y); // axis order for filling the space with particles
} }
regionType cylinder; // other options: box and sphere regionType cylinder; // other options: box and sphere
@ -95,12 +97,12 @@ setFields
stridedRangeInfo stridedRangeInfo
{ {
begin 0; // begin index of points begin 0; // begin index of points
end 30000; // end index of points end 30000; // end index of points
stride 3; // stride for selector stride 3; // stride for selector
} }
fieldValue // fields that the selector is applied to fieldValue // fields that the selector is applied to
{ {
/* /*
sets shapeName of the selected points to largeSphere sets shapeName of the selected points to largeSphere
@ -132,7 +134,7 @@ Each executable in PhasicFlow comes with some command line options that you can
Usage: particlesPhasicFlow [OPTIONS] Usage: particlesPhasicFlow [OPTIONS]
Options: Options:
-h,--help Help for using createParticles of phasicFlow v-0.1 -h,--help Help for using createParticles of phasicFlow v-1.0
-v,--version Program version information -v,--version Program version information
--discription What does this app do? --discription What does this app do?
--positionParticles-only Exectue the positionParticles part only and store the created pointStructure in the time folder. --positionParticles-only Exectue the positionParticles part only and store the created pointStructure in the time folder.

28
tutorials/sphereGranFlow/binarySystemOfParticles/caseSetup/interaction
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@ -6,31 +6,31 @@ objectName interaction;
objectType dicrionary; objectType dicrionary;
fileFormat ASCII; fileFormat ASCII;
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
materials (prop1); // properties of material materials (prop1); // properties of material
densities (1000.0); // density of materials [kg/m3] densities (1000.0); // density of materials [kg/m3]
contactListType sortedContactList; contactListType sortedContactList;
contactSearch contactSearch
{ {
method NBS; // method for broad search method NBS; // method for broad search
updateInterval 10; updateInterval 10;
sizeRatio 1.1; sizeRatio 1.1;
cellExtent 0.55; cellExtent 0.55;
adjustableBox Yes; adjustableBox Yes;
} }
model model
{ {
contactForceModel nonLinearNonLimited; contactForceModel nonLinearNonLimited;
rollingFrictionModel normal; rollingFrictionModel normal;
// Property (solid-solid Properties) // Property (solid-solid Properties)
@ -38,14 +38,12 @@ model
Geff (0.8e6); // Shear modulus [Pa] Geff (0.8e6); // Shear modulus [Pa]
nu (0.25); // Poisson's ratio [-] nu (0.25); // Poisson's ratio [-]
en (0.7); // coefficient of normal restitution en (0.7); // coefficient of normal restitution
et (1.0); // coefficient of tangential restitution mu (0.3); // dynamic friction
mu (0.3); // dynamic friction mur (0.1); // rolling friction
mur (0.1); // rolling friction
} }

4
tutorials/sphereGranFlow/binarySystemOfParticles/caseSetup/particleInsertion
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@ -6,6 +6,4 @@ objectName particleInsertion;
objectType dicrionary; objectType dicrionary;
fileFormat ASCII; fileFormat ASCII;
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
collisionCheck No; // is checked -> yes or no active No; // is insertion active -> yes or no
active No; // is insertion active -> yes or no

6
tutorials/sphereGranFlow/binarySystemOfParticles/caseSetup/shapes
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@ -6,8 +6,8 @@ objectName sphereDict;
objectType sphereShape; objectType sphereShape;
fileFormat ASCII; fileFormat ASCII;
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
names (smallSphere largeSphere); // names of shapes names (smallSphere largeSphere); // names of shapes
diameters (0.003 0.005); // diameter of shapes diameters (0.003 0.005); // diameter of shapes
materials (prop1 prop1); // material names for shapes materials (prop1 prop1); // material names for shapes

37
tutorials/sphereGranFlow/binarySystemOfParticles/settings/domainDict
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@ -6,63 +6,44 @@ objectName domainDict;
objectType dictionary; objectType dictionary;
fileFormat ASCII; fileFormat ASCII;
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
globalBox // Simulation domain: every particles that goes outside this domain will be deleted // Simulation domain: every particles that goes outside this domain will be deleted
globalBox
{ {
min (-0.12 -0.12 0); min (-0.12 -0.12 0);
max (0.12 0.12 0.1); max (0.12 0.12 0.1);
} }
decomposition
{
direction z;
}
boundaries boundaries
{ {
// Determines how often (how many iterations) do you want to
// rebuild the list of particles in the neighbor list
// of all boundaries in the simulation domain
neighborListUpdateInterval 50;
// Determines how often do you want to update the new changes in the boundary
updateInterval 10;
// The distance from the boundary plane within which particles are marked to be in the boundary list
neighborLength 0.004;
left left
{ {
type exit; // other options: periodict, reflective type exit; // other options: periodic, reflective
} }
right right
{ {
type exit; // other options: periodict, reflective type exit; // other options: periodic, reflective
} }
bottom bottom
{ {
type exit; // other options: periodict, reflective type exit; // other options: periodic, reflective
} }
top top
{ {
type exit; // other options: periodict, reflective type exit; // other options: periodic, reflective
} }
rear rear
{ {
type exit; // other options: periodict, reflective type exit; // other options: periodic, reflective
} }
front front
{ {
type exit; // other options: periodict, reflective type exit; // other options: periodic, reflective
} }
} }

46
tutorials/sphereGranFlow/binarySystemOfParticles/settings/geometryDict
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@ -12,11 +12,11 @@ rotatingAxisInfo // information for rotatingAxis
{ {
rotAxis rotAxis
{ {
p1 (0.0 0.0 0.0); // first point for the axis of rotation p1 (0.0 0.0 0.0); // first point for the axis of rotation
p2 (0.0 0.0 1.0); // second point for the axis of rotation p2 (0.0 0.0 1.0); // second point for the axis of rotation
omega 1.214; // rotation speed (rad/s) omega 1.214; // rotation speed (rad/s)
} }
} }
@ -24,21 +24,21 @@ surfaces
{ {
cylinder cylinder
{ {
type cylinderWall; // other options: cuboidWall and planeWall type cylinderWall; // other options: cuboidWall and planeWall
p1 (0.0 0.0 0.0); // begin point of cylinder axis p1 (0.0 0.0 0.0); // begin point of cylinder axis
p2 (0.0 0.0 0.1); // end point of cylinder axis p2 (0.0 0.0 0.1); // end point of cylinder axis
radius1 0.12; // radius at p1 radius1 0.12; // radius at p1
radius2 0.12; // radius at p2 radius2 0.12; // radius at p2
resolution 24; // number of divisions resolution 24; // number of divisions
material prop1; // material name of this wall material prop1; // material name of this wall
motion rotAxis; // motion component name motion rotAxis; // motion component name
} }
/* /*
@ -47,17 +47,17 @@ surfaces
wall1 wall1
{ {
type planeWall; // other options: cuboidWall and cylinderWall type planeWall; // other options: cuboidWall and cylinderWall
p1 (-0.12 -0.12 0.0); // first point of the wall p1 (-0.12 -0.12 0.0); // first point of the wall
p2 (0.12 -0.12 0.0); // second point of the wall p2 (0.12 -0.12 0.0); // second point of the wall
p3 (0.12 0.12 0.0); // third point of the wall p3 (0.12 0.12 0.0); // third point of the wall
p4 (-0.12 0.12 0.0); // fourth point of the wall p4 (-0.12 0.12 0.0); // fourth point of the wall
material prop1; // material name of the wall material prop1; // material name of the wall
motion rotAxis; // motion component name motion rotAxis; // motion component name
} }
@ -68,17 +68,17 @@ surfaces
wall2 wall2
{ {
type planeWall; // other options: cuboidWall and cylinderWall type planeWall; // other options: cuboidWall and cylinderWall
p1 (-0.12 -0.12 0.1); // first point of the wall p1 (-0.12 -0.12 0.1); // first point of the wall
p2 (0.12 -0.12 0.1); // second point of the wall p2 (0.12 -0.12 0.1); // second point of the wall
p3 (0.12 0.12 0.1); // third point of the wall p3 (0.12 0.12 0.1); // third point of the wall
p4 (-0.12 0.12 0.1); // fourth point of the wall p4 (-0.12 0.12 0.1); // fourth point of the wall
material prop1; // material name of the wall material prop1; // material name of the wall
motion rotAxis; // motion component name motion rotAxis; // motion component name
} }

26
tutorials/sphereGranFlow/binarySystemOfParticles/settings/settingsDict
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@ -6,33 +6,33 @@ objectName settingsDict;
objectType dictionary; objectType dictionary;
fileFormat ASCII; fileFormat ASCII;
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
run binarySystemofParticles; run binarySystemofParticles;
dt 0.00001; // time step for integration (seconds) dt 0.00001; // time step for integration (seconds)
startTime 0.0; // start time for simulation startTime 0.0; // start time for simulation
endTime 10.0; // end time for simulation endTime 10.0; // end time for simulation
saveInterval 0.1; // time interval for saving the simulation saveInterval 0.1; // time interval for saving the simulation
timePrecision 6; // maximum number of digits for time folder timePrecision 6; // maximum number of digits for time folder
g (0 -9.8 0); // gravity vector (m/s2) g (0 -9.8 0); // gravity vector (m/s2)
// save necessary (i.e., required) data on disk // save necessary (i.e., required) data on disk
includeObjects (diameter); includeObjects (diameter);
// exclude unnecessary data from saving on disk // exclude unnecessary data from saving on disk
excludeObjects (rVelocity.dy1 pStructPosition.dy1 pStructVelocity.dy1); excludeObjects (rVelocity.dy1 pStructPosition.dy1 pStructVelocity.dy1);
integrationMethod AdamsBashforth2; // integration method integrationMethod AdamsBashforth2; // integration method
writeFormat ascii; // data writting format (ascii or binary) writeFormat ascii; // data writting format (ascii or binary)
timersReport Yes; // report timers timersReport Yes; // report timers
timersReportInterval 0.01; // time interval for reporting timers timersReportInterval 0.1; // time interval for reporting timers