On 10/4/24 21:44, 'yy.wayne' via deal.II User Group wrote:
**
I decrease dt by half for each mesh refinement. Now the iterations remain
constant (20, 21, and 23), same as you predicted. I guess in practical I should
keep dt and h constant (based on frequency and wave speed) for a acceptable
accuracy, while increase the dimension of computational space to test the
number of iterations?
I think you should do plenty of computational experiments to gain the
experience what works and what doesn't, and to assess the accuracy you get! :-)
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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