Adding to Oliver's answer. Failing convergence should mainly be an issue of size parameter. We have not investigated this in detail, but the limit for this code seems to be at size parameters of 5-10.



On 2022-04-27 22:33, Krolick, William C. (MSFC-ER42)[ESSCA] wrote:

I have been attempting to generate some scattering data files with the command “scat_data_singleTmatrix(…”, and am running into some issues. I get the following error after running for a while: “CONVERGENCE IS NOT OBTAINED FOR NPN1=300. EXECUTION TERMINATED“. I am running with a wavelength range of 3.5e-7-6.8e-7 meters and between 50-500 grid points. Increasing the wavelength does make the code with the given run file converge, but I would of course like to have it converge for my desired range. Any obvious things to look at to debug this issue?

Thank you,

Will Krolick

Senior Project Engineer, CFD Analyst

NASA Marshall Space Flight Center, ER 42

Jacobs Space Exploration Group, ESSCA

CFD Research Corporation

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