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Mhd enhancement of heat transfer and its relevance to fusion reactor blanket design

S. Sukoriansky, D. Klaiman, H. Branover, E. Greenspan1989年Fusion Engineering and DesignIF 1.7出版社

The effect of a uniform magnetic field on the heat transfer of liquid metal forced flows in straight rectangular channels subjected to a uniform heat flux on one of the walls parallel to the field is experimentally studied. The experiments covered the domain 3.8 ⩾ U ⩾ 18 cm/s; 0 ⩾ B ⩾ 0.9 T; 0 ⩾ M ⩾ 300 and 4 × 103 ⩾ Re ⩾ 2 × 104. It is found that the application of the magnetic field improves the heat transfer in channels made of both non-conducting walls and of conducting walls. Whereas in the former case this improvement results from the creation of enhanced anisotropic turbulence across he entire channel, in the conducting channel the improvement results from an increase in the velocity near the heated wall as well as enhancement of turbulence in the vicinity of this wall.

日本語訳

一様な磁場が、一様な熱流束を受ける平行な壁の一方に沿って流れる液体金属の強制流における熱伝達に及ぼす影響を実験的に研究した。実験は、3.8 ⩾ U ⩾ 18 cm/s、0 ⩾ B ⩾ 0.9 T、0 ⩾ M ⩾ 300、および4 × 10³ ⩾ Re ⩾ 2 × 10⁴の範囲で行われた。非導電性壁および導電性壁の両方で作られたチャネルにおいて、磁場の印加が熱伝達を改善することが見出された。非導電性壁のチャネルでは、この改善はチャネル全体にわたる強化された異方性乱流の生成によるものであるのに対し、導電性壁のチャネルでは、この改善は加熱壁近傍の速度の増加と、その壁付近での乱流の強化によるものである。

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