Recent content by appelboom

I just calculated the pressure difference without the holes. It is around 3 bars, easy to calculate. I am just wondering how to calculate the pressure difference between the 2 sides when i put holes into the plate. I consider 1 big hole to make the calculations easier. When i calculate the...

I have done some calculations and the air flow would be turbulent through the hole(s) The situation is: plate moving at 40 ms over a distance of 9 mm.The difference in volume by the movement is 42,5 cm³. Without holes the difference in pressure would be appr 3 bar. I'm trying to look at the...

don't think that viscosity will play a roll, it is air. But i will look at it closer

hi I have a plate moving back and forth in a closed space. The shape of the plate is a ring, it is moving around an axis up and down. The pressure difference between the two sides is too big when the plate is moving, and hence the force on the plate. Now I want to make some holes in the...