The method of characteristics is used to generate supersonic wall contours for two-dimensional, straight sonic line (SSL) and curved sonic line (CSL) minimum length nozzles for exit Mach numbers of two, four and six. These contours are combined with subsonic inlets to determine the influence of the inlet geometry on the sonic-line shape, its location, and on the supersonic flow field. A modified version of the VNAP2 code is used to compute the inviscid and laminar flow fields for Reynolds numbers of 1,170, 11,700, and 23,400. Supersonic flow field phenomena, including boundary-layer separation and oblique shock waves, are observed to be a result of the inlet geometry. The sonic-line assumptions made for the SSL prove to be superior to those of the CSL.
Computational Analysis of the Transonic Flow Field of Two-Dimensional Minimum Length Nozzles
Argrow, B. M., and Emanuel, G. (September 1, 1991). "Computational Analysis of the Transonic Flow Field of Two-Dimensional Minimum Length Nozzles." ASME. J. Fluids Eng. September 1991; 113(3): 479–488. https://doi.org/10.1115/1.2909521
Download citation file: