How to describe right hand side of energy equation in tridiagonal system? Didn't get right hand side values of tridiagonal matrix.

xmax=1; ymax=20; dx=0.05; dy=0.25; dt=0.02; m=xmax/dx; n=ymax/dy; U=zeros(m,n); V=zeros(m,n);

for j =1:n

D(i)=-U(i,j)*dt*(-TNEW(i-1,j)+TOLD(i,j)-TNEW(i-1,j))/2*dx+dt*(TOLD(i,j-1)-2*TOLD(i,j)+TNEW(i,j+1)/2*(dy^2))-V(i,j)*dt*(TNEW(i,j+1)-TOLD(i,j-1))/4*dy;

end

Answer 1

[Prateek]

Hello Gayathri,

The code you have posted executes without any error.

For better assistance, please post more details about your query, and include any other code and/or error messages .

Regards,

Prateek

[Prateek]

Hello Gayathri,

Please refer to these links:

1) TUTORIAL: how to ask a question (on Answers) and get a fast answer - MATLAB Answers - MATLAB Central (mathworks.com)

2) How do I get help on homework questions on MATLAB Answers? - MATLAB Answers - MATLAB Central (mathworks.com)

Thanks,

Prateek