Micro-orifice single-phase flow at very high Reynolds number

Andrea Cioncolini; Stefano Cassineri; Jonathan Duff; Michele Curioni; Fabio Scenini

doi:10.1016/j.expthermflusci.2017.10.006

Micro-orifice single-phase flow at very high Reynolds number

Andrea Cioncolini, Stefano Cassineri, Jonathan Duff, Michele Curioni, Fabio Scenini^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Micro-orifice discharge with single-phase liquid flow was experimentally investigated with six circular micro-orifices with diameters of 300 μm and 600 μm. The experiments were carried out with water at high pressure (12 MPa) and high temperature (503 K), such that the Reynolds number varied between 28,000 and 220,000, a range significantly wider than inspected during previous researches on turbulent flow conditions in micro-orifices. The dimensionless pressure drop slightly decreased with increasing Reynolds number, with no apparent influence of the micro-orifice diameter ratio or aspect ratio. Using the newly generated data presented here, the validity of an existing micro-orifice discharge prediction method for turbulent flow conditions was extended to microfluidics applications with very high Reynolds numbers.

Original language	English
Pages (from-to)	35-40
Number of pages	6
Journal	Experimental Thermal and Fluid Science
Volume	91
DOIs	https://doi.org/10.1016/j.expthermflusci.2017.10.006
State	Published - 1 Feb 2018
Externally published	Yes

Keywords

Discharge
High Reynolds number
Micro-fluidics
Micro-orifice
Pressure drop
Turbulent flow

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10.1016/j.expthermflusci.2017.10.006

Cite this

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title = "Micro-orifice single-phase flow at very high Reynolds number",

abstract = "Micro-orifice discharge with single-phase liquid flow was experimentally investigated with six circular micro-orifices with diameters of 300 μm and 600 μm. The experiments were carried out with water at high pressure (12 MPa) and high temperature (503 K), such that the Reynolds number varied between 28,000 and 220,000, a range significantly wider than inspected during previous researches on turbulent flow conditions in micro-orifices. The dimensionless pressure drop slightly decreased with increasing Reynolds number, with no apparent influence of the micro-orifice diameter ratio or aspect ratio. Using the newly generated data presented here, the validity of an existing micro-orifice discharge prediction method for turbulent flow conditions was extended to microfluidics applications with very high Reynolds numbers.",

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T1 - Micro-orifice single-phase flow at very high Reynolds number

AU - Cioncolini, Andrea

AU - Cassineri, Stefano

AU - Duff, Jonathan

AU - Curioni, Michele

AU - Scenini, Fabio

PY - 2018/2/1

Y1 - 2018/2/1

N2 - Micro-orifice discharge with single-phase liquid flow was experimentally investigated with six circular micro-orifices with diameters of 300 μm and 600 μm. The experiments were carried out with water at high pressure (12 MPa) and high temperature (503 K), such that the Reynolds number varied between 28,000 and 220,000, a range significantly wider than inspected during previous researches on turbulent flow conditions in micro-orifices. The dimensionless pressure drop slightly decreased with increasing Reynolds number, with no apparent influence of the micro-orifice diameter ratio or aspect ratio. Using the newly generated data presented here, the validity of an existing micro-orifice discharge prediction method for turbulent flow conditions was extended to microfluidics applications with very high Reynolds numbers.

AB - Micro-orifice discharge with single-phase liquid flow was experimentally investigated with six circular micro-orifices with diameters of 300 μm and 600 μm. The experiments were carried out with water at high pressure (12 MPa) and high temperature (503 K), such that the Reynolds number varied between 28,000 and 220,000, a range significantly wider than inspected during previous researches on turbulent flow conditions in micro-orifices. The dimensionless pressure drop slightly decreased with increasing Reynolds number, with no apparent influence of the micro-orifice diameter ratio or aspect ratio. Using the newly generated data presented here, the validity of an existing micro-orifice discharge prediction method for turbulent flow conditions was extended to microfluidics applications with very high Reynolds numbers.

KW - Discharge

KW - High Reynolds number

KW - Micro-fluidics

KW - Micro-orifice

KW - Pressure drop

KW - Turbulent flow

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M3 - 文章

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SN - 0894-1777

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SP - 35

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JO - Experimental Thermal and Fluid Science

JF - Experimental Thermal and Fluid Science

ER -

Micro-orifice single-phase flow at very high Reynolds number

Abstract

Keywords

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