Wow, this helped me out tremendously. I had one term switched in the energy equation. Thank you very, very much prex. This was a big headache for me so I'm definitely going to make a donation to the forum.
Hi, I attached discretization of the energy equation for the sphere and the boundary conditions. I hope this is what you were looking for prex.
racookpe1978, I believe that I am always changing deltaT/dtime (please see attached) but I must be doing something wrong because the equations are...
Hi Prex,
I use a constant spatial step size by defining a set number of grid points and then divide the radius of the particle by (grid points-1) to get deltaR. I then use this deltaR value to determine the time step size using the stability criteria that the Fourier number must be less than...
thread997-113741
I have the same exact problem of the referenced post above and did not see anyone post any direct answer to the problem so I'm reposting. I am trying to heat a sphere by forced convection and am tracking the temperature within the sphere (lumped capacitance not valid). I am...
