一种由洛伦兹力引起的新型边界层流动
A new kind of boundary layer flow due to Lorentz forces
摘要：
本文提出了一种新的边界层流动，它是由电磁洛伦兹力在导电流体中平行于平板作用而产生的。板块是静止的，周围的流体也是停滞的。这种流动等价于沿垂直平板的经典自由对流。将边界层方程转化为无量纲形式，引入了一个新的无量纲数，它与Grashof数等价。用有限差分法求解了变换后的边界层方程，得到了摩擦系数和速度分布。
英文摘要：
In this paper we present a new kind of boundary layer flow produced by an electromagnetic Lorentz force which acts parallel to the plate in an electrically conductive fluid. The plate is motionless and the ambient fluid stagnant. This flow is equivalent to the classical free convective flow along a vertical plate. The boundary layer equations are transformed to non-dimensional form and a new dimensionless number is introduced which is equivalent to the Grashof number. The transformed boundary layer equations are solved with the finite difference method and the presented results include values of the friction coefficient and velocity profiles.
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