基于OpenFOAM的氢气音速喷嘴流出特性研究

doi:10.3969/j.issn.1000-1158.2024.08.10

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Abstract The OpenFOAM numerical simulations, combined with the experimental measurements of the high-pressure pVTt gas flow standard device of the National Institute of Metrology, was conducted for the three sonic nozzles with throat diameters of 0.32mm, 1.01mm and 3.20mm. The effect of flow state and metrological characteristics resulted from gas media were quantitively investigated within the laminar flow range of 4.14×10³～8.21×10⁵ throat Reynolds number. The results show that the difference of discharge coefficients between hydrogen and helium is within 1.14%, while the difference of discharge coefficients between hydrogen and air is within 0.45%.

Key words： flow measurement sonic nozzle discharge coefficient OpenFOAM numerical simulation

Received: 05 January 2023 Published: 05 September 2024

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TB937

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	Articles by authors
	XIANG Yuhan
	HUANG Zhenwei
	LI Chunhui
	CAO Peijuan
	XIE Dailiang

Cite this article:

XIANG Yuhan,HUANG Zhenwei,LI Chunhui, et al. OpenFOAM-based Study of Hydrogen Sonic Nozzle Outflow Characteristics[J]. Acta Metrologica Sinica, 2024, 45(8): 1155-1161.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2024.08.10 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2024/V45/I8/1155

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