GSMAC有限要素法による内部発熱を伴う電磁熱流体の正方形Cavity内自然対流解析 : 第2報,磁場解析スキームの改良,エンストロフィー,流体磁気クロスヘリシティー

概要

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In the previous paper, the natural convections of thermo-electrically conducting fluids in a square cavity under a constant magnetic field are calculated using GSMAC-FEM in conjunction with the so-called B method. This scheme satisfies conservation laws of both mass and magnetic flux efficiently. In the present paper, we modify the conventional B method to raise the efficiency of calculation, while retaining the accuracy of calculation. Hydromagnetic cross helicity is introduced as the new physical quantity which accounts for the effect of interactions between the magnetic field and the velocity field. Using hydromagnetic cross helicity, we evaluate the difference in performance between the conventional and modified B methods quantitatively.
1993-07-25