Vortex flow modelling inside the poppet valve chamber

机译：提升阀腔内的涡流模型

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The paper presents a numerical simulation and analysis of the flow inside a poppet valve. First, the single phase (liquid) flow is investigated, and an original model is introduced for quantitatively describing the vortex flow. Since an atmospheric outlet pressure produces large negative absolute pressure regions, a two-phase (cavitating) flow analysis is also performed. Both pressure and density distributions inside the cavity are presented, and a comparison with the liquid flow results is performed. It is found that if one defines the cavity radius such that up to this radius the pressure is no larger than the vaporization pressure, then both liquid and cavitating flow models predict the same cavity extent.

机译：本文对提升阀内部的流动进行了数值模拟和分析。首先，研究了单相（液体）流，并引入了一个原始模型来定量描述涡流。由于大气出口压力会产生较大的负绝对压力区域，因此也要进行两相（空化）流动分析。给出了腔体内的压力和密度分布，并与液体流动结果进行了比较。可以发现，如果定义腔体半径以使压力达到该半径不大于蒸发压力，则液体和空化流模型都预测相同的腔体范围。

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来源
《Bath Workshop on Power Transmission and Motion Control (PTMC 2001) Sep 12-14, 2001, Bath》|2001年|p.161-176|共16页
会议地点 Bath(GB);Bath(GB)
作者
S BERNAD; R SUSAN-RESIGA; I ANTON; V ANCUSA;
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作者单位

School of Mechanical Engineering, University Politehnica of Timisoara, Romania;

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原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
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1. Numerical investigation on cavitating jet inside a poppet valve with special emphasis on cavitation-vortex interaction [J] . Yuan Cong, Song Jinchun, Zhu Lisha, International Journal of Heat and Mass Transfer . 2019,第OCTa期

机译：提升阀内空化射流的数值研究，尤其着重于空化-涡流相互作用
2. Numerical investigation on cavitating jet inside a poppet valve with special emphasis on cavitation-vortex interaction [J] . Yuan Cong, Song Jinchun, Zhu Lisha, International Journal of Heat and Mass Transfer . 2019,第Octa期

机译：具有特殊强调空化涡阀内部蓄水阀内腔空气喷射的数值研究
3. Coherent structure of paired vortex and transition in flow pattern in cavitating jet through a poppet valve [J] . Yuan Cong, Song Jinchun, Liu Minghe International Journal of Mechanical Sciences . 2019,第期

机译：通过提升阀将空化射流流动模式的配对涡流的相干结构
4. Vortex flow modelling inside the poppet valve chamber [C] . R SU, V ANCUSA, I ANTON, Bath workshop on power transmission and motion control . 2001

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机译：基于实验模型的涡管内流体流体的三维CFD模拟 - 涡流室半径的优化

Vortex flow modelling inside the poppet valve chamber

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