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Performance prediction method for a multi-stage Knudsen pump
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DOI：10.1063/1.5001213.png)
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摘要
En 中文
In this study, the novel method to predict the performance of a multi-stage Knudsen pump is proposed. The performance prediction method is carried out in two steps numerically with the assistance of a simple experimental result. In the first step, the performance of a single-stage Knudsen pump was measured experimentally under various pressure conditions, and the relationship of the mass flow rate was obtained with respect to the average pressure between the inlet and outlet of the pump and the pressure difference between them. In the second step, the performance of a multi-stage pump was analyzed by a one-dimensional model derived from the mass conservation law. The performances predicted by the 1D-model of 1-stage, 2-stage, 3-stage, and 4-stage pumps were validated by the experimental results for the corresponding number of stages. It was concluded that the proposed prediction method works properly. Published by AIP Publishing.
Keyword:
THERMAL CREEP FLOW
RAREFIED-GAS
TRANSPIRATION
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期刊
IF:
4.3
论文数:
2.9W
被引数:
8.0W
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引用论文
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