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function plotpv( iter) |
| 2 |
clear |
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clear path |
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|
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global Nx Ny Nz |
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global lat long dz dm mdep |
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global delt_su su_its t_su delt |
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global descriptor this_path |
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global f deltaf Q beta r_expt r_heat H |
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global time rots it |
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global g Cp rho_bar alpha |
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global u v t w |
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global iterations |
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|
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|
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param_file_name = ... |
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input(' Please enter the name of the m-file with the parameters for this run : ','s') ; |
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feval(param_file_name) ; |
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|
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iterations |
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|
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it = input(' Please enter iteration : ','s') |
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|
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path = this_path |
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cmdstr=['cd ' path ]; |
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eval(cmdstr); |
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path=pwd |
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|
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ufilename=(['U.' it ]); |
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vfilename=(['V.' it ]); |
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tfilename=(['T.' it ]); |
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u=rdmds(ufilename,'b'); |
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v=rdmds(vfilename,'b'); |
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t=rdmds(tfilename,'b'); |
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|
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pv=zeros(Nx,Ny,Nz); |
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ff=zeros(Nx,Ny,Nz); |
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dx=dm; |
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dy=dm; |
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|
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for j=1:Ny |
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ff(:,j,:)=f+(j-1)*dy*beta; |
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end |
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|
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pv(1:Nx-1,1:Ny-1,1:Nz-1)=(v(2:Nx,1:Ny-1,1:Nz-1)/dx -v(1:Nx-1,1:Ny-1,1:Nz-1)/dx ... |
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-u(1:Nx-1,2:Ny,1:Nz-1)/dy +u(1:Nx-1,1:Ny-1,1:Nz-1)/dy ... |
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+ff(1:Nx-1,1:Ny-1,1:Nz-1)) ... |
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.*(t(1:Nx-1,1:Ny-1,1:Nz-1)-t(1:Nx-1,1:Ny-1,2:Nz))/dz; |
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|
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t0=input('Enter temperature : ') |
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|
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% Interpolate PV on T=T0 surface |
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|
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h=zeros(Nz,Ny); |
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pvh=zeros(Nz,Ny); |
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|
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for i=1:Nx |
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for j=1:Ny |
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kk=find(t(i,j,:)<t0); |
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|
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if kk(1)>1 |
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h(i,j)=(kk(1)-1)*dz+dz*(t(i,j,kk(1)-1)-t0)/(t(i,j,kk(1)-1)-t(i,j,kk(1))); |
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pvh(i,j)=pv(i,j,kk(1)-1) ... |
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+(pv(i,j,kk(1))-pv(i,j,kk(1)-1))*(t(i,j,kk(1)-1)-t0)/(t(i,j,kk(1)-1)-t(i,j,kk(1))); |
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else |
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h(i,j)=0; |
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pvh(i,j)=0; |
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end |
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|
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end |
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end |
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|
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hmax=max(max(h)) |
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|
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|
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%cmin=0; |
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%cmax=0.1; |
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%V=[cmin,cmax]; |
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%contourf(h,50);caxis(V);colorbar;grid |
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|
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% title='depth of a density interface'; |
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% imagesc(lat,long,h);shading flat;axis image;caxis(V);colorbar('horizontal'); |
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% text(0,-30,descriptor); |
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% text(0,140,title); |
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|
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figure |
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pcolor(pvh.');shading flat; colorbar; axis square |
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title(['pv timestep ' num2str(eval(it)) ' level of t=' num2str(t0) ]); |
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drawnow |
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|
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figure |
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|
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pcolor(h.');shading flat; colorbar; axis square |
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title(['h timestep' num2str(eval(it)) ' level of t=' num2str(t0) ]); |
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drawnow |
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|
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return |
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