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QUASI-ONE-DIMENSIONAL SEPARATION TYPE MODEL OF PSEUDO-SHOCK IN A DUCT

巻 44, 発行 5, 2013, pp. 639-664
DOI: 10.1615/TsAGISciJ.2014010958
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要約

A quasi-one-dimensional separation model of pseudo-shock in constant-area ducts is developed as applies to inlet isolators (diffusers) of scramjet engines. Based on this model, closed analytical dependences for the distance of the upstream pressure propagation on the backpressure, inlet Mach number, and duct shape are obtained. Using the single empirical constant, which has a simple physical meaning, the solution satisfactory describes a wide range of test data on pseudo-shock lengths in the ducts of various shapes. The model generalization is proposed for deceleration flows in divergent diffusers, which are found in wide applications in aerodynamic research. Some principal features of such flows are analyzed.

によって引用された
  1. Mazhul I. I., Gounko Yu. P., Numerical simulation of the flow with a pseudo-shock in an axisymmetric expanding duct with a frontal inlet, Thermophysics and Aeromechanics, 25, 1, 2018. Crossref

  2. Melnikov A. Yu., Zvegintsev V. I., Supersonic flow deceleration in a long cylindrical channel with pseudoshock formation, 1770, 2016. Crossref

  3. Volodin V.V., Golub V.V., El'yanov A.E., Mikushkin A.Yu., Experimental Study of Water Drop Vibrations in Airflow under Acoustic Impact, Herald of the Bauman Moscow State Technical University. Series Natural Sciences, 1 (100), 2022. Crossref

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