Revision e28b0978aefa625ad35fadbd9251dacf34024b98 authored by Eh Tan on 05 September 2008, 23:37:12 UTC, committed by Eh Tan on 05 September 2008, 23:37:12 UTC
1 parent 912fb7e
Phase_change.c
/*
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
*<LicenseText>
*
* CitcomS by Louis Moresi, Shijie Zhong, Lijie Han, Eh Tan,
* Clint Conrad, Michael Gurnis, and Eun-seo Choi.
* Copyright (C) 1994-2005, California Institute of Technology.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*</LicenseText>
*
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#include <stdio.h>
#include <math.h>
#include <sys/types.h>
#include "global_defs.h"
#include "parsing.h"
#include "phase_change.h"
static void phase_change_apply(struct All_variables *E, double **buoy,
float **B, float **B_b,
float Ra, float clapeyron,
float depth, float transT, float inv_width);
static void calc_phase_change(struct All_variables *E,
float **B, float **B_b,
float Ra, float clapeyron,
float depth, float transT, float inv_width);
static void debug_phase_change(struct All_variables *E, float **B);
void phase_change_allocate(struct All_variables *E)
{
int j;
int nno = E->lmesh.nno;
int nsf = E->lmesh.nsf;
for (j=1;j<=E->sphere.caps_per_proc;j++) {
E->Fas410[j] = (float *) malloc((nno+1)*sizeof(float));
E->Fas410_b[j] = (float *) malloc((nsf+1)*sizeof(float));
E->Fas670[j] = (float *) malloc((nno+1)*sizeof(float));
E->Fas670_b[j] = (float *) malloc((nsf+1)*sizeof(float));
E->Fascmb[j] = (float *) malloc((nno+1)*sizeof(float));
E->Fascmb_b[j] = (float *) malloc((nsf+1)*sizeof(float));
}
return;
}
void phase_change_input(struct All_variables *E)
{
int m = E->parallel.me;
float width;
/* for phase change 410km */
input_float("Ra_410",&(E->control.Ra_410),"0.0",m);
input_float("clapeyron410",&(E->control.clapeyron410),"0.0",m);
input_float("transT410",&(E->control.transT410),"0.0",m);
input_float("width410",&width,"0.0",m);
if (width!=0.0)
E->control.inv_width410 = 1.0/width;
/* for phase change 670km */
input_float("Ra_670",&(E->control.Ra_670),"0.0",m);
input_float("clapeyron670",&(E->control.clapeyron670),"0.0",m);
input_float("transT670",&(E->control.transT670),"0.0",m);
input_float("width670",&width,"0.0",m);
if (width!=0.0)
E->control.inv_width670 = 1.0/width;
/* for phase change CMB */
input_float("Ra_cmb",&(E->control.Ra_cmb),"0.0",m);
input_float("clapeyroncmb",&(E->control.clapeyroncmb),"0.0",m);
input_float("transTcmb",&(E->control.transTcmb),"0.0",m);
input_float("widthcmb",&width,"0.0",m);
if (width!=0.0)
E->control.inv_widthcmb = 1.0/width;
return;
}
void phase_change_apply_410(struct All_variables *E, double **buoy)
{
if (E->control.Ra_410 != 0.0)
phase_change_apply(E, buoy, E->Fas410, E->Fas410_b, E->control.Ra_410,
E->control.clapeyron410, E->viscosity.z410,
E->control.transT410, E->control.inv_width410);
return;
}
void phase_change_apply_670(struct All_variables *E, double **buoy)
{
if (E->control.Ra_670 != 0.0)
phase_change_apply(E, buoy, E->Fas670, E->Fas670_b, E->control.Ra_670,
E->control.clapeyron670, E->viscosity.zlm,
E->control.transT670, E->control.inv_width670);
return;
}
void phase_change_apply_cmb(struct All_variables *E, double **buoy)
{
if (E->control.Ra_cmb != 0.0)
phase_change_apply(E, buoy, E->Fascmb, E->Fascmb_b, E->control.Ra_cmb,
E->control.clapeyroncmb, E->viscosity.zcmb,
E->control.transTcmb, E->control.inv_widthcmb);
return;
}
static void phase_change_apply(struct All_variables *E, double **buoy,
float **B, float **B_b,
float Ra, float clapeyron,
float depth, float transT, float inv_width)
{
int m, i;
calc_phase_change(E, B, B_b, Ra, clapeyron, depth, transT, inv_width);
for(m=1;m<=E->sphere.caps_per_proc;m++)
for(i=1;i<=E->lmesh.nno;i++)
buoy[m][i] -= Ra * B[m][i];
if (E->control.verbose) {
fprintf(E->fp_out, "Ra=%f, clapeyron=%f, depth=%f, transT=%f, inv_width=%f\n",
Ra, clapeyron, depth, transT, inv_width);
debug_phase_change(E,B);
fflush(E->fp_out);
}
return;
}
static void calc_phase_change(struct All_variables *E,
float **B, float **B_b,
float Ra, float clapeyron,
float depth, float transT, float inv_width)
{
int i,j,k,n,ns,m,nz;
float e_pressure,pt5,one,dz;
pt5 = 0.5;
one = 1.0;
for(m=1;m<=E->sphere.caps_per_proc;m++) {
/* compute phase function B, the concentration of the high pressure
* phase. B is between 0 and 1. */
for(i=1;i<=E->lmesh.nno;i++) {
nz = ((i-1) % E->lmesh.noz) + 1;
dz = (E->sphere.ro-E->sx[m][3][i]) - depth;
/*XXX: dz*rho[nz]*g[nz] is only a approximation for the reduced
* pressure, a more accurate formula is:
* integral(rho(z)*g(z)*dz) from depth_ph to current depth */
e_pressure = dz * E->refstate.rho[nz] * E->refstate.gravity[nz]
- clapeyron * (E->T[m][i] - transT);
B[m][i] = pt5 * (one + tanh(inv_width * e_pressure));
}
/* compute the phase boundary, defined as the depth where B==0.5 */
ns = 0;
for (k=1;k<=E->lmesh.noy;k++)
for (j=1;j<=E->lmesh.nox;j++) {
ns++;
B_b[m][ns]=0.0;
for (i=1;i<E->lmesh.noz;i++) {
n = (k-1)*E->lmesh.noz*E->lmesh.nox + (j-1)*E->lmesh.noz + i;
if (B[m][n]>=pt5 && B[m][n+1]<=pt5)
B_b[m][ns]=(E->sx[m][3][n+1]-E->sx[m][3][n])*(pt5-B[m][n])/(B[m][n+1]-B[m][n])+E->sx[m][3][n];
}
}
}
return;
}
static void debug_phase_change(struct All_variables *E, float **B)
{
int m, j;
fprintf(E->fp_out,"output_phase_change_buoyancy\n");
for(m=1;m<=E->sphere.caps_per_proc;m++) {
fprintf(E->fp_out,"for cap %d\n",E->sphere.capid[m]);
for (j=1;j<=E->lmesh.nno;j++)
fprintf(E->fp_out,"Z = %.6e T = %.6e B[%06d] = %.6e \n",E->sx[m][3][j],E->T[m][j],j,B[m][j]);
}
fflush(E->fp_out);
return;
}
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