MHD Flow Control of Oblique Shock Waves Around Ramps in Low-temperature Supersonic Flows

Changbing, Su; Li, Yinghong; Cheng, Baolei; Wang, Jian; Jun, Cao; Li, Yiwen

doi:10.1016/s1000-9361(09)60183-7

Cited by 25 publications

(1 citation statement)

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“…For the numerical simulations, most scholars adopted the method of electron beam ionization for the MHD control of shock wave system in the inlet, and they conducted a theoretical analysis for the MHD control effect at off-design Mach numbers by establishing an inviscid MHD model and coupling it with an electron beam ionization plasma model. Their results indicated that the captured capacity of gas in the inlet can be effectively improved and the total pressure losses can be greatly reduced by a reasonable selection of the MHD control parameters (Wang et al 2022;Cheng et al 2022;Chang et al 2010;Lee et al 2004;Macheret et al 2003;Shneider et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis on the MHD flow control of the hypersonic vehicle inlet

Li,

Huang,

Zhu

2024

Preprint

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Under the assumption of the low magnetic Reynolds number, the coupled model of the turbulent flow field and the electromagnetic field is established to simulate the flow characteristics of Weakly Ionized Gas (WIG) in the inlet under the MHD (Magnetohydrodynamic) effect. Results show that WIG has more active thermodynamic properties than that of air in inlet. Specifically, at the throat, the thermal conductivity of WIG is augmented by 1.64 times compared to that of air. For the inlet with an MHD acceleration zone, the separation shock waves will be fallen on the third ramp and converted into the reattachment shock waves here. And the separation bubbles generated by the reattachment shock waves are weakened due to the multiple reflections before entering the isolator, hence, the wall pressure and the skin friction coefficient have a decrease in the isolator. Nevertheless, in the inlet with an MHD deceleration zone, the separation shock waves will be fallen precisely at the throat under the effect of the countercurrent Lorentz force, so that the separation shock waves are directly transformed into reattachment shock waves at the throat and all reflected into the isolator, which leads to the peak manifestation of the wall pressure and the skin friction coefficient in the isolator.

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