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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,203 @@ | ||
| #ifndef _HABEC_H_ | ||
| #define _HABEC_H_ | ||
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| #include <AMReX_Array4.H> | ||
| #include <AMReX_REAL.H> | ||
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| using namespace amrex; | ||
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| namespace HABEC | ||
| { | ||
| // habec is Hypre abec, where abec is the form of the linear equation | ||
| // we are solving: | ||
| // | ||
| // alpha*phi - div(beta*grad phi) + div(\vec{c}*phi) | ||
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| AMREX_INLINE | ||
| void hbflx (Array4<Real> const flux, | ||
| Array4<Real> const er, | ||
| const Box& reg, | ||
| int cdir, int bct, int bho, Real bcl, | ||
| Array4<Real const> const bcval, | ||
| Array4<int const> const mask, | ||
| Array4<Real const> const b, | ||
| Real beta, const Real* dx, int inhom) | ||
| { | ||
| Real h; | ||
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| bool x_left = false; | ||
| bool x_right = false; | ||
| bool y_left = false; | ||
| bool y_right = false; | ||
| bool z_left = false; | ||
| bool z_right = false; | ||
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| #if AMREX_SPACEDIM == 1 | ||
| if (cdir == 0) { | ||
| h = dx[0]; | ||
| x_left= true; | ||
| } | ||
| else if (cdir == 1) { | ||
| h = dx[0]; | ||
| x_right= true; | ||
| } | ||
| #elif AMREX_SPACEDIM == 2 | ||
| if (cdir == 0) { | ||
| h = dx[0]; | ||
| x_left= true; | ||
| } | ||
| else if (cdir == 2) { | ||
| h = dx[0]; | ||
| x_right= true; | ||
| } | ||
| else if (cdir == 1) { | ||
| h = dx[1]; | ||
| y_left= true; | ||
| } | ||
| else if (cdir == 3) { | ||
| h = dx[1]; | ||
| y_right= true; | ||
| } | ||
| #else | ||
| if (cdir == 0) { | ||
| h = dx[0]; | ||
| x_left= true; | ||
| } | ||
| else if (cdir == 3) { | ||
| h = dx[0]; | ||
| x_right= true; | ||
| } | ||
| else if (cdir == 1) { | ||
| h = dx[1]; | ||
| y_left = true; | ||
| } | ||
| else if (cdir == 4) { | ||
| h = dx[1]; | ||
| y_right = true; | ||
| } | ||
| else if (cdir == 2) { | ||
| h = dx[2]; | ||
| z_left = true; | ||
| } | ||
| else if (cdir == 5) { | ||
| h = dx[2]; | ||
| z_right = true; | ||
| } | ||
| #endif | ||
|
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||
| Real bfv, bfm, bfm2; | ||
|
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| if (bct == LO_DIRICHLET) { | ||
| if (bho >= 1) { | ||
| Real h2 = 0.5e0_rt * h; | ||
| Real th2 = 3.e0_rt * h2; | ||
| bfv = 2.e0_rt * beta * h / ((bcl + h2) * (bcl + th2)); | ||
| bfm = (beta / h) * (th2 - bcl) / (bcl + h2); | ||
| bfm2 = (beta / h) * (bcl - h2) / (bcl + th2); | ||
| } | ||
| else { | ||
| bfv = beta / (0.5e0_rt * h + bcl); | ||
| bfm = bfv; | ||
| } | ||
| } | ||
| else { | ||
| amrex::Error("hbflx: unsupported boundary type"); | ||
| } | ||
|
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| if (inhom == 0) { | ||
| bfv = 0.e0_rt; | ||
| } | ||
|
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| int reg_ilo = reg.loVect3d()[0]; | ||
| int reg_ihi = reg.hiVect3d()[0]; | ||
| int reg_jlo = reg.loVect3d()[1]; | ||
| int reg_jhi = reg.hiVect3d()[1]; | ||
| int reg_klo = reg.loVect3d()[2]; | ||
| int reg_khi = reg.hiVect3d()[2]; | ||
|
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| if (x_left) { | ||
| int i = reg_ilo; | ||
| for (int k = reg_klo; k <= reg_khi; ++k) { | ||
| for (int j = reg_jlo; j <= reg_jhi; ++j) { | ||
| if (mask(i-1,j,k) > 0) { | ||
| flux(i,j,k) = b(i,j,k) * (bfv * bcval(i-1,j,k) - bfm * er(i,j,k)); | ||
| if (bho >= 1) { | ||
| flux(i,j,k) = flux(i,j,k) - b(i,j,k) * bfm2 * er(i+1,j,k); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| else if (x_right) { | ||
| int i = reg_ihi; | ||
| for (int k = reg_klo; k <= reg_khi; ++k) { | ||
| for (int j = reg_jlo; j <= reg_jhi; ++j) { | ||
| if (mask(i+1,j,k) > 0) { | ||
| flux(i+1,j,k) = -b(i+1,j,k) * (bfv * bcval(i+1,j,k) - bfm * er(i,j,k)); | ||
| if (bho >= 1) { | ||
| flux(i+1,j,k) = flux(i+1,j,k) + b(i+1,j,k) * bfm2 * er(i-1,j,k); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| else if (y_left) { | ||
| int j = reg_jlo; | ||
| for (int k = reg_klo; k <= reg_khi; ++k) { | ||
| for (int i = reg_ilo; i <= reg_ihi; ++i) { | ||
| if (mask(i,j-1,k) > 0) { | ||
| flux(i,j,k) = b(i,j,k) * (bfv * bcval(i,j-1,k) - bfm * er(i,j,k)); | ||
| if (bho >= 1) { | ||
| flux(i,j,k) = flux(i,j,k) - b(i,j,k) * bfm2 * er(i,j+1,k); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| else if (y_right) { | ||
| int j = reg_jhi; | ||
| for (int k = reg_klo; k <= reg_khi; ++k) { | ||
| for (int i = reg_ilo; i <= reg_ihi; ++i) { | ||
| if (mask(i,j+1,k) > 0) { | ||
| flux(i,j+1,k) = -b(i,j+1,k) * (bfv * bcval(i,j+1,k) - bfm * er(i,j,k)); | ||
| if (bho >= 1) { | ||
| flux(i,j+1,k) = flux(i,j+1,k) + b(i,j+1,k) * bfm2 * er(i,j-1,k); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| else if (z_left) { | ||
| int k = reg_klo; | ||
| for (int j = reg_jlo; j <= reg_jhi; ++j) { | ||
| for (int i = reg_ilo; i <= reg_ihi; ++i) { | ||
| if (mask(i,j,k-1) > 0) { | ||
| flux(i,j,k) = b(i,j,k) * (bfv * bcval(i,j,k-1) - bfm * er(i,j,k)); | ||
| if (bho >= 1) { | ||
| flux(i,j,k) = flux(i,j,k) - b(i,j,k) * bfm2 * er(i,j,k+1); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| else if (z_right) { | ||
| int k = reg_khi; | ||
| for (int j = reg_jlo; j <= reg_jhi; ++j) { | ||
| for (int i = reg_ilo; i <= reg_ihi; ++i) { | ||
| if (mask(i,j,k+1) > 0) { | ||
| flux(i,j,k+1) = -b(i,j,k+1) * (bfv * bcval(i,j,k+1) - bfm * er(i,j,k)); | ||
| if (bho >= 1) { | ||
| flux(i,j,k+1) = flux(i,j,k+1) + b(i,j,k+1) * bfm2 * er(i,j,k-1); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| else { | ||
| std::cout << "hbflx: impossible face orientation" << std::endl; | ||
| } | ||
| } | ||
|
|
||
| } // namespace HABEC | ||
|
|
||
| #endif |
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