Mach Disk Shape in Truncated Ideal Contour Nozzles
نویسنده
چکیده
DLR Lampoldshausen carried out cold flow tests to study the flow field in a truncated ideal contour nozzle at low nozzle pressure ratios. A convex shaped Mach disk was found for nozzle pressure ratios less than 10 and a slight concave one for nozzle pressure ratios more than 20. Due to boundary layer transition the convex Mach disk is temporary tilted and redirects the flow towards the nozzle wall. Accompanying numerical simulations compare well with the experiments.
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