Recent content by Harry Fry

Thanks Keith, I managed to get it to work in the end. The main issue was I wasnt getting the light rays to converge at the pinhole (even though the pinhole was probably larger than preferable). Then swapped the spherical mirrors for convex lenses and plain mirrors. The output wasn't brilliant...

Thank you very much! You've been a huge help.

Ah thanks. I found one online but that is for when the angle of attack is 0. Should I work out each half of the wedge individually, relative to the free stream direction as if the half angle was greater than 5 in my example?

Apologies, I meant a diamond shaped wedge.

Is there an equation to calculate the oblique shock angle for supersonic flow when the given angle of attack is greater than 0, but less than the half angle? In my particular practical experiment, the half angle of the aerofoil is 5 degrees, so want to get a variety of figures between 5 and -5...

The sharp edge is due to go on the other side of the test section. This is the set up I'm going for

Homework Statement My final year project at university is to visualise the test section of a supersonic wind tunnel by schlieren method, though I'm having a bit of trouble setting it up. The light source I am using is a halogen bulb, in an old lamp housing, with a condenser on the end with a...