Progress towards the analysis of transient combusting, multiphase flows using upwind/implicit numerics
Abstract
This paper summarizes recent work performed in extending the CRAFT finite volume, Navier-Stokes computer code to analyze transient combusting/multi-phase flows for varied liquid and solid propellant problems. CRAFT implements Roe/TVD based upwind/implicit numerics requiring complex matrix manipulations to incorporate thermochemical upgrades. Current thermochemical capabilities include gas-phase combustion, imperfect gas behavior (virial equations of state), gas/liquid equilibrated formulation, gas/particulate nonequilibrium formulation, and nonequilibrium phase-change. For transient flows, dynamic gridding is implemented to account for moving boundaries/discontinuities, and, large-eddy simulation (LES) is used to directly simulate the vortical large scale turbulent structure. Applications described in this paper include gun chamber simulation (ETC and ram accelerator) and tactical missile short-duration lateral control jets.
- Publication:
-
31st AIAA Aerospace Sciences Meeting and Exhibit
- Pub Date:
- January 1993
- Bibcode:
- 1993aiaa.meetV....H
- Keywords:
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- Finite Volume Method;
- Lateral Control;
- Multiphase Flow;
- Reacting Flow;
- Transient Response;
- Tvd Schemes;
- Aerothermochemistry;
- Computerized Simulation;
- Fluid Mechanics and Heat Transfer