Hi
in comsol when you integrate the dx*dy*dz is implicit, and controlled by COMSOL so there is no reason to use twice dvol, its implicit there, if you want the volume of a domain, you integrate over the domain the argument "1", so if you use a boolean operator i.e (S<0) and integrate that over the domain, you will get the total volume where the condition is "1". It's as simple as that ;)
Note COMSOL has many implicit notations, these are quite common to miss, it took me quite some time to really understand the double game of scalar variables, fields, implicit summation and integration over entities ...
--
Good luck
Ivar
in comsol when you integrate the dx*dy*dz is implicit, and controlled by COMSOL so there is no reason to use twice dvol, its implicit there, if you want the volume of a domain, you integrate over the domain the argument "1", so if you use a boolean operator i.e (S<0) and integrate that over the domain, you will get the total volume where the condition is "1". It's as simple as that ;)
Note COMSOL has many implicit notations, these are quite common to miss, it took me quite some time to really understand the double game of scalar variables, fields, implicit summation and integration over entities ...
--
Good luck
Ivar
