| sasanghomi |
March 4, 2013 10:20 |
engine geometry file
2 Attachment(s)
Dear Foamers ,
I have a question about engine geometry file for sonicTurbDyMEngineFoam solver ,
What are these boundaries?
curtainInPortPatch ?
curtainInCylinderPatch ?
detachInCylinderPatch ?
detachInPortPatch ?
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM Extend Project: Open Source CFD |
| \\ / O peration | Version: 1.6-ext |
| \\ / A nd | Web: www.extend-project.de |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object engineGeometry;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
conRodLength conRodLength [0 1 0 0 0 0 0] 0.147;
bore bore [0 1 0 0 0 0 0] 0.092;
stroke stroke [0 1 0 0 0 0 0] 0.075;
clearance clearance [0 1 0 0 0 0 0] 0.015;
rpm rpm [0 0 -1 0 0 0 0] 1500;
engineTopoChangerMesh simpleEngineTopoFvMesh;
// Between -deformAngle and deformAngle the piston motion is done
// using deformation and not layering
deformAngle 10;
valvePosTol 1e-4;
layeredMesh yes;
checkMesh yes;
piston
{
patch piston;
coordinateSystem
{
type cartesian;
origin (0 0 0);
axis (0 0 1);
direction (0 1 0);
}
minLayer 0.0005;
maxLayer 0.001;
}
valveSplitPoint (0.003 0 0); // For the converter
// Two-valve engine valves are split on x
// Four valve engines are split into 4 quadrants in the x-y plane
valves
(
intakeValve
{
// Valve coordinate system
coordinateSystem
{
type cylindrical;
origin (-0.025 0 0);
axis (0 0 1);
direction (0 1 0);
}
// Patch and zone names
bottomPatch valve1;
poppetPatch valve2;
stemPatch valveStem1;
curtainInPortPatch valveCurtainPort1;
curtainInCylinderPatch valveCurtainCyl1;
detachInCylinderPatch valveDetachCyl1;
detachInPortPatch valveDetachPort1;
detachFaces
(
);
// Vertex on edge of the step. For the converter
stemEdge (-0.04 0 -0.0075);
// Valve diameter
diameter 0.03;
// Minimum valve lift
minLift 0.00025;
// Layer thickness
minTopLayer 0.0005;
maxTopLayer 0.001;
minBottomLayer 0.0005;
maxBottomLayer 0.001;
// Lift Profile
liftProfileFile "intakeLiftProfileFile";
}
exhaustValve
{
// Valve coordinate system
coordinateSystem
{
type cylindrical;
origin (0.025 0 0);
axis (0 0 1);
direction (0 1 0);
}
// Patch and zone names
bottomPatch valve3;
poppetPatch valve4;
stemPatch valveStem2;
curtainInPortPatch valveCurtainPort2;
curtainInCylinderPatch valveCurtainCyl2;
detachInCylinderPatch valveDetachCyl2;
detachInPortPatch valveDetachPort2;
detachFaces
(
);
// Vertex on edge of the step. For the converter
stemEdge (0.04 0 -0.0075);
// Valve diameter
diameter 0.03;
// Minimum valve lift
minLift 0.00025;
// Layer thickness
minTopLayer 0.0005;
maxTopLayer 0.001;
minBottomLayer 0.0005;
maxBottomLayer 0.001;
// Lift Profile
liftProfileFile "exhaustLiftProfileFile";
}
);
// ************************************************************************* //
Actually I found a 2D case and I want to simulate a 3D case that the images for both of them attached. I guess the detachInCylinderPatch and detachInPortPatch are two boundaries that generated when a valve closed.Also curtainInPortPatch and curtainInCylinderPatch are for using sliding mesh. But I don't know where are they in my case and how can I create them? in the 2D case they are in middle of two blocks and mesh generated at two side of them.
Can anyone explain about these boundaries?
where are they in my case?
How can I creat them?
Thanks and best regards ,
Sasan. |
