The behaviour of air flow through different nozzle proflies

Abstract EN

This work involved the study of air flow through different types of nozzles.

The studies include the assessments and determination of the conditions at throat, including the critical pressures, the mass flow rates and the critical velocities together with the condition at nozzle entry (subsonic) and nozzle exit (supersonic).

The stagnation conditions were also discussed and assessed.

The studies include also, the experimental assessment of the effect of wide angle divergence, the determination of critical pressure ratio by varying the mass flow rate and the exit pressures.

The analysis carried out during this study was restricted to one dimensional flow, where the velocities and properties of air were assumed to change only in the direction of the flow and that air velocities was assumed to be constant at a mean value across the cross-section of the nozzle.