A method for pressure calculations in ball valves containing bubbles

C. van Lookeren campagne; R. Nicodemus; G.J. de Bruin; D. Lohse

doi:10.1115/1.1486220

A method for pressure calculations in ball valves containing bubbles

C. van Lookeren campagne, R. Nicodemus, G.J. de Bruin, D. Lohse

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Abstract

A method of analyzing bubbly flow in a ball valve in a hydraulic circuit is presented. The dynamics of a single bubble can be well described by a quasi-static approximation of the Rayleigh-Plesset equation. Hence the presence of bubbles in low volume fractions can be modeled through an effective compressibility of the flow, which is easy to implement in commercial CFD packages. In the sample valve, a volume fraction of 4% air bubbles results in a mass flux reduction of up to 10%, as the bubbles expand due to the pressure drop in the valve and partly block it.

Original language	English
Pages (from-to)	765-771
Number of pages	7
Journal	Journal of fluids engineering
Volume	124
Issue number	3
DOIs	https://doi.org/10.1115/1.1486220
Publication status	Published - 2002

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title = "A method for pressure calculations in ball valves containing bubbles",

abstract = "A method of analyzing bubbly flow in a ball valve in a hydraulic circuit is presented. The dynamics of a single bubble can be well described by a quasi-static approximation of the Rayleigh-Plesset equation. Hence the presence of bubbles in low volume fractions can be modeled through an effective compressibility of the flow, which is easy to implement in commercial CFD packages. In the sample valve, a volume fraction of 4% air bubbles results in a mass flux reduction of up to 10%, as the bubbles expand due to the pressure drop in the valve and partly block it.",

author = "{van Lookeren campagne}, C. and R. Nicodemus and {de Bruin}, G.J. and D. Lohse",

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AU - van Lookeren campagne, C.

AU - Nicodemus, R.

AU - de Bruin, G.J.

AU - Lohse, D.

PY - 2002

Y1 - 2002

N2 - A method of analyzing bubbly flow in a ball valve in a hydraulic circuit is presented. The dynamics of a single bubble can be well described by a quasi-static approximation of the Rayleigh-Plesset equation. Hence the presence of bubbles in low volume fractions can be modeled through an effective compressibility of the flow, which is easy to implement in commercial CFD packages. In the sample valve, a volume fraction of 4% air bubbles results in a mass flux reduction of up to 10%, as the bubbles expand due to the pressure drop in the valve and partly block it.

AB - A method of analyzing bubbly flow in a ball valve in a hydraulic circuit is presented. The dynamics of a single bubble can be well described by a quasi-static approximation of the Rayleigh-Plesset equation. Hence the presence of bubbles in low volume fractions can be modeled through an effective compressibility of the flow, which is easy to implement in commercial CFD packages. In the sample valve, a volume fraction of 4% air bubbles results in a mass flux reduction of up to 10%, as the bubbles expand due to the pressure drop in the valve and partly block it.

U2 - 10.1115/1.1486220

DO - 10.1115/1.1486220

M3 - Article

SN - 0098-2202

VL - 124

SP - 765

EP - 771

JO - Journal of fluids engineering

JF - Journal of fluids engineering

IS - 3

ER -

A method for pressure calculations in ball valves containing bubbles

Abstract

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