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Numerical investigation of the unsteady behaviors of the hypersonic inlet caused by throttling was carried out by means of large- eddy simulation for a free stream Mach number 5.9 and the unit Reynolds number approximately 5.2 × 106m-1. Results have been validated carefully against experimental data. The throttling was caused by the plug placed near the exit of isolator. Two typical cases with and...
Numerical investigation of underexpanded sonic coaxial jets was carried out using large-eddy simulation. The system consists of two coaxial nozzles, in which one is inner round nozzle and another is outer annular nozzle. Since the pressure ratio of inner to outer nozzle dominates the flow structures and behaviors, two typical pressure ratios 5/3 (case A) and 3/5 (case B) are considered. The calculated...
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