The Effects of Swirl Vane for Disk MHD Accelerator
説明
The purposes of current study are to compare the performances with-and-without inlet swirl of the Disk MHD Accelerator, and to find out its effects. With an inlet swirl, results of calculation show that it is able to improve the MHD compression. In case of the swirl ratio of -1.0, a maximum velocity of about 3100 m/s is obtained. These are because of the influence of the electric field that is caused by the strong Lorenz force Fr and the counter clockwise of the gas flow uθ. Nomenclature u = gas velocity, m/s E = electric field, V/m j = current density, A/m 2 σ = electrical conductivity, S/m β = Hall parameter ρ = gas density, kg/m 3 B = magnetic flux density, T T = temperature, K PL = pressure loss, Pa QL = thermal loss, W CP = specific heat at constant pressure, J/kg/K CV = specific heat at constant volume, J/kg/K ES = total enthalpy, J/m 3 R =
収録刊行物
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- 46th AIAA Aerospace Sciences Meeting and Exhibit
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46th AIAA Aerospace Sciences Meeting and Exhibit 2008-01-07
American Institute of Aeronautics and Astronautics (AIAA)
