mesh grid and mesh ploting
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R = 0.003/2;
y=linspace(-1,1,30);
x=linspace(-1,1,30);
r.^2==x.^2+y.^2;
y=r./R;
a0=-6536;
z=a0*R^2*(1-y.^2)/0.016;
[X1,Y1]=meshgrid(x,y);
%zz=griddata(x,y,z,X1,Y1,'cubic');
figure
mesh(X1,Y1,z)
This is a simple poiseuelle flow in a pipe, my goal is to plot the velocity of flow(z) in 3D. R is the redius of pipe, x and y are inplane and z is the velocity along the pipe length. I get the error ' Error using mesh Z must be a matrix, not a scalar or vector.' How can I get the z as a matrix to resolve the error?
3 个评论
David Hill
2020-5-6
Do you have the equations you are trying to model? Or are you creating the model yourself?
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