CAJ | 학술논문

提出了直管式磁流体推进装置的二维数学模型，并用有限元法和有限差分法数值求解，得到了推进系统中流速、电流、洛伦兹力和压力的分布．通过不同磁场下管道内流速分布的对比，清楚地显示出哈特曼效应，即磁场强弱对管道截面速度分布的影响．
제출료직관식자류체추진장치적이유수학모형，병용유한원법화유한차분법수치구해，득도료추진계통중류속、전류、락륜자력화압력적분포．통과불동자장하관도내류속분포적대비，청초지현시출합특만효응，즉자장강약대관도절면속도분포적영향．
A two-dimensional mathematical model for a linear duct MHD propulsion system with direct current is presented. By FEM method, the flow and current distributions at the MID drive section are analyzed, and the propulsive force is gained. By comparing with the flow distributions when different intensity of magnetic induction, the effect of Hartmann on the distributions of velocity is shown clearly.