(redirected fromFlux of a vector field) Thesaurus Medical Encyclopedia flux (flŭks) n. 1. a.A flow or flowing of a liquid. b.The flowing in of the tide. c.A continuing movement, especially in large numbers of things:a flux of sensation. ...
1曲面积分 散度定理 求流量Flux integral:find the flux of the following vector fields across the given surface.Assume the vectors normal to the surface pount outward.F=r / |r|,r=<x,y,z>.across the sphere of radius a centered at the origin.找出穿过上述向量场的流量Flux.4π(a^2)我用了...
A vector potential is obtained for two-dimensional flow fields using the Lagrange stream function, and for axisymmetric flow fields using the Stokes stream function. The flux through surfaces bounded by straight-line segments with arbitrary orientation is obtained using the line integral of the tangent...
flow vector，流动矢量；侧重方向 flux，侧重通量、流量；流量=流速*面积 velocity，速度，速率，侧重速度方面的意思；streamline，流线型的，意为流动液体中某微粒的轨迹 The path of one particle in a flowing fluid。
65,860 flux tubes are collected from seven years of measurements with the ACE spacecraft at 1 AU by spotting the flux tube walls with large changes in the magnetic field direction and the vector flow velocity. The tube walls are associated with large changes in the ion entropy density and ...
曲面积分 散度定理 求流量Flux integral:find the flux of the following vector fields across the given surface.Assume the vectors normal to the surface pount outward.F=r / |r|,r=<x,y,z>.across the sphere of radius a centered at the orig
The paper presents the simulation a high performance control for induction machines with robust-adaptive rotor flux observer. The solution is tested by numerical simulation of the closed-loop vector control system.关键词: robust-adaptive control Field-oriented control induction motor speed control flux ...
A new proof of the existence of the flux vector is given for general Cauchy fluxes. The proof is based on an approximation theorem in the theory of functions rather than on the classical tetrahedron argument. This enables us to replace the usual assumptions of Lipschitz continuity with respect ...
A method for controlling a variable speed wind turbine generator is disclosed. The generator is connected to a power converter comprising switches. The generator comprises a stator and a set of terminals connected to the stator and to the switches of the power converter. The method comprises: ...
The invention relates to a method for determining the position of a rotor flux vector of an electric motor (M), comprising a step of injecting a first current vector into a first reference frame (x, y) rotating at a first frequency (惟) relative to a reference frame (d, q) synchronous...