Dear Sir/Madam, I have been trying to make simulation about the resistance of the wigley hull in finite domain(i.e.canal, model basin). The following is my design flow domain. I used the “Configuration” of “wig_fre_non_def” in the SHIPFLOW Tutorial Package and then add the xmesh(envi,body,free,plot) to set up the flow domain. Unfortunately, the warning and error message appeared evertime I tried. How could I fix the problem? wigley0310.fdb