高超声速二元进气道顶板移动变几何方案数值模拟

Abstract

Abstract: This paper investigates a variable geometry design with partially compressible ramp movable to simulate a hypersonic two-dimensional (2D) inlet working from Mach number Ma=4-6.The inlet self-starting performance at Ma=4 and the adjusting method from Ma=4 to Ma=6 are studied by means of numerical simulation. The results show that the variable geometry inlet self-start can be realized at Ma=3.7, and the discharge capacity of the adaptive bleed slot formed by the variable geometry is below 2%. When the adaptive bleed slot is closed after starting, the mass flow rate reaches 0.77 at Ma=4. This design enables the inlet to possess a high mass flow rate and good performance during the whole working range, and the adjusting method is practical and feasible.

Key words: hypersonic inlet, variable geometry inlet, partial compression ramp movable, starting characteristic, numerical simulation

CLC Number:

V231.3

ZHANG Lin, ZHANG Kunyuan, JIN Zhiguang, NAN Xiangjun, WANG Lei. Numerical Simulation of a Variable Geometry Hypersonic 2D Inlet Designed with Compressible Ramp Movable[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2012, 33(10): 1800-1808.

References

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Numerical Simulation of a Variable Geometry Hypersonic 2D Inlet Designed with Compressible Ramp Movable

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