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Reduction of cavitation in refrigerant fluid flow through micro passages in the presence of external transverse magnetic fields

机译:在存在外部横向磁场的情况下减少通过微通道的制冷剂流体流动中的气穴现象

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摘要

This paper presents a numerical study of cryogenic fluid flow cavitation in a microchannel and annulus, with forward-facing step. Two-phase mixture model is used to simulate the effects of magnetic fields produced by an electrical wire and magnetic doublet on the cavitation region. The results show that considerable reduction of vapor generation due to pressure drop is possible in the presence of an external magnetic fields. This phenomenon occurs due to effect of magnetic field on the pressure distribution in the contraction region and it is observed in both types of studied magnetic fields.
机译:本文对微通道和环空中的低温流体流空化进行了数值研究,并提出了朝前的步骤。两相混合模型用于模拟电线和双峰产生的磁场对空化区域的影响。结果表明,在存在外部磁场的情况下,由于压降而导致的蒸气产生的显着减少是可能的。这种现象是由于磁场对收缩区域压力分布的影响而发生的,并且在两种类型的研究磁场中都可以观察到。

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