Newton-Raphson solution of cryogenic homogenous two-phase flow in convergent-divergent nozzles

Date

1997-05-01

Author

Akmandor, LS
Nagashima, T

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An implicit finite volume algorithm has been written to solve the steady one-dimensional vapor-liquid, two-phase, inviscid, compressible flow. The speed of sound definition based on flow quality and void fraction has been given along with some two-phase gas dynamic relations. Shocks have been captured by the steady Euler solver incorporating an artificial two-phase compressibility expression which has been added at transonic region according to the upwinded density concept. The fully coupled linearized system of equations is solved by a rapid Newton-Raphson solution procedure, Subcooled nitrogen flow through two convergent divergent nozzles has been analyzed. Homogeneous equilibrium and non-equilibrium results have been compared with analytical, experimental and numerical results, as means to validate the present solution.

Subject Keywords

Two-phase flow, Homogeneous, Speed of sound, Cryogenic nitrogen, Choked nozzle

URI

https://hdl.handle.net/11511/64703

Collections

Department of Aerospace Engineering, Article