Pressure drop for Restrictive orifice with more holes

[wilbert95]

I am working with Restrictive orifice with more holes. Does anyone knows what the pressure drop is after such an orifice. If you have a certain pressure drop can you then calculate the ideal number of holes and the size of them??

Regards, Wilbert

 

[hacksaw]

the quick method is to define an equivalent diameter based on the open are and sort out the pressure drop.