Plot the streamlines and pressure for flow around a rotating cylinder
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r0=1,U=1,p=1,0<theta<2pi,r0<r<3r0, generate gamma=0, gamma=-2pir0U.
LAMBDA = 1.; Pinf = 1.; U = 1.;
th = linspace(0,2*pi,100); r = linspace(0.1,1,100); [TH,R] = meshgrid(th,r); [X,Y] = pol2cart(TH,R);
PSI = -LAMBDA.*sin(TH)./R; VR = -LAMBDA./(R.^2).*cos(TH); VTH = -LAMBDA./(R.^2).*sin(TH); P = Pinf + U^2/2 - (VR.^2 + VTH.^2)/2;
figure contourf(X,Y,P,20,'LineColor','none'); hold on; contour(X,Y,PSI,20,'-k.','LineWidth',1); axis equal; xlabel('X'); ylabel('Y');
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Simon
el 13 de Dic. de 2013
Hi!
Please use the code formatting for pasting code, thanks!
And what is the question? What did you do? Where does the code come from? What does it calculate?
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