Three dimensional unsteady inviscid flows in convergent-divergent nozzles is of importance in understanding the stability of rockets and jet propulsion. A computer program for evaluating unsteady inviscid flow conditions in three-dimensional eccentric as well as concentric nozzles is developed. The program uses the cell-centered finite-volume method based on Roe’s approximate Riemann solver scheme. The flow simulation results in concentric circular nozzles are compared with the one-dimensional analytic solutions and the accuracy of the computation model is verified. The results for steady and unsteady flows through eccentric and concentric convergent-divergent nozzles are then presented. A range of exit to throat areas, pressure ratios, and inlet Mach number are considered.
- Fluids Engineering Division
Transonic and Supersonic Inviscid Flow Equations in 3-D Eccentric Nozzles
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Mazaheri, AR, Emdad, H, & Ahmadi, G. "Transonic and Supersonic Inviscid Flow Equations in 3-D Eccentric Nozzles." Proceedings of the ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. Volume 2: Symposia and General Papers, Parts A and B. Montreal, Quebec, Canada. July 14–18, 2002. pp. 1225-1230. ASME. https://doi.org/10.1115/FEDSM2002-31092
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