Abstract A method for approximating the critical heat flux (CHF) of subcooled flow boiling in microgravity by ground tests was proposed. The method suggests that the flow boiling CHF in microgravity is less than that in normal gravity at a heating surface orientation (φ) of 135° but is greater than that in normal gravity when φ = 315° at the corresponding conditions. The method was validated by drop tower experiments, and good agreement was observed from the results of all five tested cases. The method provided a new way to find the CHF of subcooled flow boiling in microgravity by ground tests.

中文翻译：

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一种通过地面试验逼近微重力下过冷流沸腾CHF的方法

摘要 提出了一种通过地面试验逼近微重力条件下过冷流沸腾临界热通量(CHF)的方法。该方法表明，在相应条件下，当加热面取向 (φ) 为 135° 时，微重力下流动沸腾 CHF 小于正常重力下的流动沸腾 CHF，但大于 φ = 315° 时正常重力下的流动沸腾。该方法通过落塔实验进行了验证，并且从所有五个测试案例的结果中观察到了良好的一致性。该方法为通过地面试验寻找微重力下过冷流沸腾的CHF提供了一种新方法。