The moving problem of a screw dislocation at subsonicvelocity in a transversely isotropic piezoelectric medium is considered.
考虑横观各向同性压电材料中螺位错的亚音速运动问题。
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For subsonic aerodynamic analysis, Linearized Velocity Potential Theory is used to evaluate the aerodynamic coefficient, and we can get subsonic aerodynamic model of vehicle by Regression analysis.
In this paper, the accelerating feature of solar wind flow from subsonic and sub-Alfven velocity into supersonic and super-Alfven velocity is discussed in the axis-symmetric magnetic flux tube.