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tutorials/sphereGranFlow/RotaryAirLockValve/ReadMe.md
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# Problem Definition # Problem Definition
The problem is to simulate a Rotary Air-Lock Valve with below diminsions: The problem is to simulate a Rotary Air-Lock Valve. The external diameter of rotor is about 21 cm. There is one type of particle in this simulation. Particles are inserted into the inlet of the valve from t=**0** s.
* Size of Cone: * **28000** particles with **5 mm** diameter are inserted into the valve with the rate of **4000 particles/s**.
* Cone Gate: 29.17 cm * The rotor starts its ortation at t = 1.25 s at the rate of 2.1 rad/s.
* Cone Exit: 10.37 cm
* Size of Outer Exit: 9.42 cm
* External diameter of Circle: 20.74 cm
There is one type of particle in this blender. Particles are poured into the inlet valve from t=**0** s.
* **28000** particles with **5 mm** diameter poured into the valve with rate of **4000 particles/s**.
<html> <html>
<body> <body>
@ -14,7 +10,7 @@ There is one type of particle in this blender. Particles are poured into the inl
a view of the Rotary Air-Lock Valve while rotating a view of the Rotary Air-Lock Valve while rotating
</div></b> </div></b>
<div align="center"> <div align="center">
<img src="sample sample sample sample", width=700px> <img src="https://github.com/PhasicFlow/phasicFlow/blob/media/media/rotaryAirLock.gif", width=700px>
</div> </div>
<div align="center"><i> <div align="center"><i>
particles are colored according to their id particles are colored according to their id
@ -23,11 +19,13 @@ There is one type of particle in this blender. Particles are poured into the inl
</html> </html>
# Setting up the Case # Setting up the Case
As it has been explained in the previous cases, the simulation case setup is based on text-based scripts. Here, the simulation case setup files are stored into three folders: `caseSetup`, `setting`, `stl` (see the above folders). See next the section for more information on how we can setup the geometry and its rotation. As it has been explained in the previous simulations, the simulation case setup is based on text-based scripts. Here, the simulation case setup files are stored into three folders: `caseSetup`, `setting`, and `stl` (see the above folders). See next the section for more information on how we can setup the geometry and its rotation.
## Geometry ## Geometry
### Defining rotation axis ### Defining rotation axis
In file `settings/geometryDict` the information of rotating axis and speed of rotation are defined. The rotation of this blender starts at time=**0 s** and ends at time=**7 s**. In file `settings/geometryDict` the information of rotating axis of rotor and its speed of rotation are defined. The rotation starts at t = **1.25 s** and ends at t = **7 s**.
```C++ ```C++
// information for rotatingAxisMotion motion model // information for rotatingAxisMotion motion model
rotatingAxisMotionInfo rotatingAxisMotionInfo
@ -53,7 +51,8 @@ rotatingAxisMotionInfo
} }
``` ```
### Surfaces ### Surfaces
In `settings/geometryDict` file, the surfaces component are defined to form a Rotating Air-Lock Valve. In `settings/geometryDict` file, the surfaces component are defined to form a Rotating Air-Lock Valve. All surface components are supplied in stl file format. All stl files should be stored under 'stl' folder.
```C++ ```C++
surfaces surfaces
{ {
@ -71,7 +70,7 @@ surfaces
// motion component name // motion component name
motion rotAxis; motion rotAxis;
} }
surfaces surfaces
{ {
// type of the wall // type of the wall
type stlWall; type stlWall;
@ -104,25 +103,49 @@ diameters (0.005);
// material names for shapes // material names for shapes
materials (sphereMat); materials (sphereMat);
``` ```
### Particle positioning before start of simulation ### Insertion of Particles
Insertion of particles starts from t = 0 s and ends at t = 7 s. A box is defined for the port from which particles are being inderted. The rate of insertion is 4000 particles per second.
<div align="center"> <div align="center">
in <b>settings/particlesDict</b> file in <b>settings/particleInsertion</b> file
</div> </div>
```C++ ```C++
// positions particles topRegion
positionParticles
{ {
// creates the required fields with zero particles (empty). // type of insertion region
method empty; type boxRegion;
// maximum number of particles in the simulation // insertion rate (particles/s)
maxNumberOfParticles 50000; rate 4000;
// perform initial sorting based on morton code? // Start time of Particles insertion (s)
mortonSorting Yes; startTime 0;
// End time of Particles insertion (s)
endTime 7;
// Time interval between each insertion (s)
interval 0.025;
// Coordinates of BoxRegion (m,m,m)
boxRegionInfo
{
min ( 0.48 0.58 0.01 ); // (m,m,m)
max ( 0.64 0.59 0.05 ); // (m,m,m)
}
setFields
{
// initial velocity of inserted particles
velocity realx3 (0.0 -0.6 0.0);
}
mixture
{
sphere 1;
}
} }
``` ```
@ -177,10 +200,10 @@ model
0.1); 0.1);
} }
``` ```
# Performing Simulation and previewing the results # Performing simulation and seeing the results
To perform simulations, enter the following commands one after another in the terminal. To perform simulations, enter the following commands one after another in the terminal.
Enter `$ particlesPhasicFlow` command to create the initial fields for particles. Enter `$ particlesPhasicFlow` command to create the initial fields for particles (here the simulaiton has no particle at the beginning).
Enter `$ geometryPhasicFlow` command to create the geometry. Enter `$ geometryPhasicFlow` command to create the geometry.
At last, enter `$ sphereGranFlow` command to start the simulation. At last, enter `$ sphereGranFlow` command to start the simulation.
After finishing the simulation, you can use `$ pFlowtoVTK` to convert the results into vtk format stored in ./VTK folder. After finishing the simulation, you can use `$ pFlowtoVTK` to convert the results into vtk format stored in ./VTK folder.