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standalone d3q7 mass collision for color model

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This commit is contained in:
James McClure
2021-03-18 21:06:15 -04:00
parent c1cd959da6
commit eb62dbd38e
2 changed files with 198 additions and 2 deletions
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6
common/ScaLBL.h
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@@ -155,6 +155,12 @@ extern "C" void ScaLBL_D3Q7_AAodd_PhaseField(int *NeighborList, int *Map, double
extern "C" void ScaLBL_D3Q7_AAeven_PhaseField(int *Map, double *Aq, double *Bq, double *Den, double *Phi, extern "C" void ScaLBL_D3Q7_AAeven_PhaseField(int *Map, double *Aq, double *Bq, double *Den, double *Phi,
int start, int finish, int Np); int start, int finish, int Np);
extern "C" void ScaLBL_D3Q7_AAodd_Color(int *neighborList, int *Map, double *Aq, double *Bq, double *Den,
double *Phi, double *ColorGrad, double *Vel, double rhoA, double rhoB, double beta, int start, int finish, int Np);
extern "C" void ScaLBL_D3Q7_AAeven_Color(int *Map, double *Aq, double *Bq, double *Den,
double *Phi, double *ColorGrad, double *Vel, double rhoA, double rhoB, double beta, int start, int finish, int Np);
extern "C" void ScaLBL_D3Q19_Gradient(int *Map, double *Phi, double *ColorGrad, int start, int finish, int Np, int Nx, int Ny, int Nz); extern "C" void ScaLBL_D3Q19_Gradient(int *Map, double *Phi, double *ColorGrad, int start, int finish, int Np, int Nx, int Ny, int Nz);
extern "C" void ScaLBL_D3Q19_MixedGradient(int *Map, double *Phi, double *Gradient, int start, int finish, int Np, int Nx, int Ny, int Nz); extern "C" void ScaLBL_D3Q19_MixedGradient(int *Map, double *Phi, double *Gradient, int start, int finish, int Np, int Nx, int Ny, int Nz);

194
cpu/Color.cpp
View File

@@ -2489,10 +2489,200 @@ extern "C" void ScaLBL_D3Q19_AAodd_Color(int *neighborList, int *Map, double *di
} }
} }
extern "C" void ScaLBL_D3Q7_AAodd_Color(int *neighborList, int *Map, double *Aq, double *Bq, double *Den,
double *Phi, double *ColorGrad, double *Vel, double rhoA, double rhoB, double beta, int start, int finish, int Np){
int nr1,nr2,nr3,nr4,nr5,nr6;
double nA,nB; // number density
double a1,b1,a2,b2,nAB,delta;
double C,nx,ny,nz; //color gradient magnitude and direction
double ux,uy,uz;
double phi;
// Instantiate mass transport distributions
// Stationary value - distribution 0
for (int n=start; n<finish; n++){
/* neighbors */
nr1 = neighborList[n+0*Np];
nr2 = neighborList[n+1*Np];
nr3 = neighborList[n+2*Np];
nr4 = neighborList[n+3*Np];
nr5 = neighborList[n+4*Np];
nr6 = neighborList[n+5*Np];
/* load velocity */
ux = Vel[n];
uy = Vel[Np+n];
uz = Vel[2*Np+n];
/* load color gradient */
nx = ColorGrad[n];
ny = ColorGrad[Np+n];
nz = ColorGrad[2*Np+n];
C = sqrt(nx*nx+ny*ny+nz*nz);
double ColorMag = C;
if (C==0.0) ColorMag=1.0;
nx = nx/ColorMag;
ny = ny/ColorMag;
nz = nz/ColorMag;
// read the component number densities
nA = Den[n];
nB = Den[Np + n];
// compute phase indicator field
phi=(nA-nB)/(nA+nB);
nAB = 1.0/(nA+nB);
Aq[n] = 0.3333333333333333*nA;
Bq[n] = 0.3333333333333333*nB;
//...............................................
// q = 0,2,4
// Cq = {1,0,0}, {0,1,0}, {0,0,1}
delta = beta*nA*nB*nAB*0.1111111111111111*nx;
if (!(nA*nB*nAB>0)) delta=0;
a1 = nA*(0.1111111111111111*(1+4.5*ux))+delta;
b1 = nB*(0.1111111111111111*(1+4.5*ux))-delta;
a2 = nA*(0.1111111111111111*(1-4.5*ux))-delta;
b2 = nB*(0.1111111111111111*(1-4.5*ux))+delta;
// q = 1
//nread = neighborList[n+Np];
Aq[nr2] = a1;
Bq[nr2] = b1;
// q=2
//nread = neighborList[n];
Aq[nr1] = a2;
Bq[nr1] = b2;
//...............................................
// Cq = {0,1,0}
delta = beta*nA*nB*nAB*0.1111111111111111*ny;
if (!(nA*nB*nAB>0)) delta=0;
a1 = nA*(0.1111111111111111*(1+4.5*uy))+delta;
b1 = nB*(0.1111111111111111*(1+4.5*uy))-delta;
a2 = nA*(0.1111111111111111*(1-4.5*uy))-delta;
b2 = nB*(0.1111111111111111*(1-4.5*uy))+delta;
// q = 3
//nread = neighborList[n+3*Np];
Aq[nr4] = a1;
Bq[nr4] = b1;
// q = 4
//nread = neighborList[n+2*Np];
Aq[nr3] = a2;
Bq[nr3] = b2;
//...............................................
// q = 4
// Cq = {0,0,1}
delta = beta*nA*nB*nAB*0.1111111111111111*nz;
if (!(nA*nB*nAB>0)) delta=0;
a1 = nA*(0.1111111111111111*(1+4.5*uz))+delta;
b1 = nB*(0.1111111111111111*(1+4.5*uz))-delta;
a2 = nA*(0.1111111111111111*(1-4.5*uz))-delta;
b2 = nB*(0.1111111111111111*(1-4.5*uz))+delta;
// q = 5
//nread = neighborList[n+5*Np];
Aq[nr6] = a1;
Bq[nr6] = b1;
// q = 6
//nread = neighborList[n+4*Np];
Aq[nr5] = a2;
Bq[nr5] = b2;
//...............................................
}
}
extern "C" void ScaLBL_D3Q7_AAeven_Color(int *Map, double *Aq, double *Bq, double *Den,
double *Phi, double *ColorGrad, double *Vel, double rhoA, double rhoB, double beta, int start, int finish, int Np){
double nA,nB; // number density
double a1,b1,a2,b2,nAB,delta;
double C,nx,ny,nz; //color gradient magnitude and direction
double ux,uy,uz;
double phi;
// Instantiate mass transport distributions
// Stationary value - distribution 0
for (int n=start; n<finish; n++){
/* load velocity */
ux = Vel[n];
uy = Vel[Np+n];
uz = Vel[2*Np+n];
/* load color gradient */
nx = ColorGrad[n];
ny = ColorGrad[Np+n];
nz = ColorGrad[2*Np+n];
C = sqrt(nx*nx+ny*ny+nz*nz);
double ColorMag = C;
if (C==0.0) ColorMag=1.0;
nx = nx/ColorMag;
ny = ny/ColorMag;
nz = nz/ColorMag;
// read the component number densities
nA = Den[n];
nB = Den[Np + n];
nAB = 1.0/(nA+nB);
Aq[n] = 0.3333333333333333*nA;
Bq[n] = 0.3333333333333333*nB;
//...............................................
// q = 0,2,4
// Cq = {1,0,0}, {0,1,0}, {0,0,1}
delta = beta*nA*nB*nAB*0.1111111111111111*nx;
if (!(nA*nB*nAB>0)) delta=0;
a1 = nA*(0.1111111111111111*(1+4.5*ux))+delta;
b1 = nB*(0.1111111111111111*(1+4.5*ux))-delta;
a2 = nA*(0.1111111111111111*(1-4.5*ux))-delta;
b2 = nB*(0.1111111111111111*(1-4.5*ux))+delta;
Aq[1*Np+n] = a1;
Bq[1*Np+n] = b1;
Aq[2*Np+n] = a2;
Bq[2*Np+n] = b2;
//...............................................
// q = 2
// Cq = {0,1,0}
delta = beta*nA*nB*nAB*0.1111111111111111*ny;
if (!(nA*nB*nAB>0)) delta=0;
a1 = nA*(0.1111111111111111*(1+4.5*uy))+delta;
b1 = nB*(0.1111111111111111*(1+4.5*uy))-delta;
a2 = nA*(0.1111111111111111*(1-4.5*uy))-delta;
b2 = nB*(0.1111111111111111*(1-4.5*uy))+delta;
Aq[3*Np+n] = a1;
Bq[3*Np+n] = b1;
Aq[4*Np+n] = a2;
Bq[4*Np+n] = b2;
//...............................................
// q = 4
// Cq = {0,0,1}
delta = beta*nA*nB*nAB*0.1111111111111111*nz;
if (!(nA*nB*nAB>0)) delta=0;
a1 = nA*(0.1111111111111111*(1+4.5*uz))+delta;
b1 = nB*(0.1111111111111111*(1+4.5*uz))-delta;
a2 = nA*(0.1111111111111111*(1-4.5*uz))-delta;
b2 = nB*(0.1111111111111111*(1-4.5*uz))+delta;
Aq[5*Np+n] = a1;
Bq[5*Np+n] = b1;
Aq[6*Np+n] = a2;
Bq[6*Np+n] = b2;
//...............................................
}
}
extern "C" void ScaLBL_D3Q7_AAodd_PhaseField(int *neighborList, int *Map, double *Aq, double *Bq, extern "C" void ScaLBL_D3Q7_AAodd_PhaseField(int *neighborList, int *Map, double *Aq, double *Bq,
double *Den, double *Phi, int start, int finish, int Np){ double *Den, double *Phi, int start, int finish, int Np){
int idx,n,nread; int idx,nread;
double fq,nA,nB; double fq,nA,nB;
for (int n=start; n<finish; n++){ for (int n=start; n<finish; n++){
@@ -2579,7 +2769,7 @@ extern "C" void ScaLBL_D3Q7_AAodd_PhaseField(int *neighborList, int *Map, double
extern "C" void ScaLBL_D3Q7_AAeven_PhaseField(int *Map, double *Aq, double *Bq, double *Den, double *Phi, extern "C" void ScaLBL_D3Q7_AAeven_PhaseField(int *Map, double *Aq, double *Bq, double *Den, double *Phi,
int start, int finish, int Np){ int start, int finish, int Np){
int idx,n,nread; int idx,nread;
double fq,nA,nB; double fq,nA,nB;
for (int n=start; n<finish; n++){ for (int n=start; n<finish; n++){