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目前,磁流体动力学2维(2D)和3维(3D)效应的实验数据还很少,分支管道的MHD效应实验结果尚未见报道,圆形管道的流速分布尚没有完整的实验数据。我们利用国际合作渠道提供的仪器和国内液态金属回路的特点开展的3D磁流体动力学效应实验研究。实验在我国专门研究磁流体的动力学效应的液态金属回路上进行。其参数为:最大磁场强度2 T,最大哈德曼数M为4000,最大相互作用参数N为3600(聚变堆中M,N均在10~3～10~5范围内),回路工作介质为低共融钠钾合金,运行温度85℃,实验段管道由304不锈钢制成,主管道内径φ_0为57mm,壁厚t_(w0)为3.5mm;支管内径φ_1为22mm,壁厚t_(w1)为3.0mm;约24％流量流入支管;
At present, experimental data on 2D and 3D 3D effects of MHD are still scarce. Experimental results of MHD effects on branch pipes have not been reported. There is no complete experimental data on the distribution of circular pipe flow rate. We use the international cooperation channels to provide equipment and domestic liquid metal loop 3D magnetic fluid dynamics experimental study. Experiments are carried out on liquid metal circuits in China that specialize in the dynamics of magnetic fluids. The parameters are: the maximum magnetic field strength 2 T, the maximum Hadman number M is 4000, the maximum interaction parameter N is 3600 (M and N in the fusion reactor are in the range of 10 ~ 3 ~ 10 ~ 5) Low eutectic sodium-potassium alloy, operating temperature 85 ℃, the experimental section of pipe made of 304 stainless steel, the main pipe diameter φ_0 57mm, wall thickness t_ (w0) of 3.5mm; branch diameter φ_1 of 22mm, wall thickness t_ (w1) Is 3.0mm; about 24% of the flow into the branch pipe;