基于OpenFOAM的氢气音速喷嘴流出特性研究OA北大核心CSTPCD
OpenFOAM-based Study of Hydrogen Sonic Nozzle Outflow Characteristics
采用OpenFOAM数值模拟,并基于中国计量科学研究院的高压pVTt气体流量标准装置实验测量相结合的方法,针对喉径为0.32、1.01、3.20 mm的3支音速喷嘴,在喉部雷诺数4.14×103～8.21×105层流范围内,定量研究了不同气体介质对其流动状态及计量特性的影响.结果表明,氢气和氦气流出系数间的最大偏差达1.14％,氢气和空气流出系数间的偏差在0.45％以内.
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 0.32 mm,1.01 mm and 3.20 mm.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％.
项裕涵;黄震威;李春辉;曹培娟;谢代梁
中国计量大学,浙江杭州 310018中国计量科学研究院,北京 100029河北师范大学,河北石家庄 050024
流量计量音速喷嘴流出系数OpenFOAM数值模拟
flow measurementsonic nozzledischarge coefficientOpenFOAMnumerical simulation
《计量学报》 2024 (008)
1155-1161 / 7
浙江省科技计划项目(2022C01244)
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