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Added function for truelove-density, and took out the unecessary use of switch on-off module for accretion.

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JackHsu
2019-08-06 16:17:11 +08:00
parent 632819764e
commit aebf4f11ae
2 changed files with 21 additions and 15 deletions
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35
acc/mhd_solver/stencil_process.sps
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@@ -76,23 +76,30 @@ sink_gravity(int3 globalVertexIdx){
return force_gravity;
}
#endif
// Now this is more of a suedo-code, just write out some intuitions.
#if LACCRETION
#if LSINK
Scalar
mass_accrection(int3 globalVertexIdx){
Scalar mass = (Scalar){()
Scalar Jeans_length = pow(((3.14 * cv_sound * cv_sound) / (AC_G_const * lnrho), 0.5));
Scalar Truelove_Jeans_lnrho = ((3.14) * Jeans_length * Jeans_length * cv2_sound) / (AC_G_const * dsx * dsy * dsz);
const Vector sink_pos = (Vector){DCONST_REAL(AC_sink_pos_x),
DCONST_REAL(AC_sink_pos_y),
DCONST_REAL(AC_sink_pos_z)};
const Scalar sink_mass = DCONST_REAL(AC_M_sink);
if (lnrho >= Truelove_Jeans_lnrho)
{
sink_mass = sink_mass + (Truelove_Jeans_lnrho * (dsx * dsy * dsz))
}
return sink_mass;
truelove_density(in Scalar lnrho){
const Scalar rho = exp(lnrho);
const Scalar Jeans_length_squared = (M_PI * cs2_sound) / (AC_G_const * rho);
const Scalar TJ_rho = ((M_PI) * ((dsx * dsx) / Jeans_length_squared) * cs2_sound) / (AC_G_const * dsx * dsx);
Scalar accrection_rho = rho - TJ_rho;
if (accrection_rho < 0){
accrection_rho = Scalar(0);
}
return accretion_rho;
}
#endif
//TODO: basic structure of this part is as follows
// update_accretion_buffer() <--> accretion_profile() <--> truelove_density()
#if LENTROPY
Vector
momentum(int3 globalVertexIdx, in Vector uu, in Scalar lnrho, in Scalar ss, in Vector aa) {