I have prolem related to meshing in fluid volume generated by using boolean operation like unite and subtraction.
My project name is analysis of condenser design by using cfd .
In condenser cold water flow inside tubes and steam flow outside tubes ,in shell.
For steam, generated volume by using extrude ,unit, subtraction.
Steam volume is big complicated geometry show in photo.
In steam volume geometry no. of holes for tubes are 2600 and dia of this hole is 19mm ...and distance between two centre of hole is 25 in X direction and 43 in Y direction and inside gap for 9 baffle ..show in photo.
please help me how cam mesh such a big complecated geometry..and which element size is preffer for it ..and how can contol mesh around holes..