Effect of thickness to diameter ratio on micro-orifice single-phase liquid flow at low Reynolds number

Max Szolcek; Andrea Cioncolini; Fabio Scenini; Michele Curioni

doi:10.1016/j.expthermflusci.2018.04.016

Effect of thickness to diameter ratio on micro-orifice single-phase liquid flow at low Reynolds number

Max Szolcek, Andrea Cioncolini^*, Fabio Scenini, Michele Curioni

^*Corresponding author for this work

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

10 Scopus citations

Abstract

Micro-orifice discharge with single-phase water flow was experimentally investigated with six multi-micro-orifice test pieces with orifice diameter of 200 µm and thickness to diameter ratio between 4.25 and 27.0. During the experiments the Reynolds number varied between 5 and 4500: a range that corresponds to creeping flow and laminar to turbulent transitional flow. The emergence of turbulence, as indirectly deduced from the change in slope of the pressure drop versus mass flow rate profiles, was found to be gradual and smooth. Using the newly generated data presented here, the validity of an existing micro-orifice discharge prediction method for creeping flow conditions was extended to microfluidics applications with thick micro-orifices.

Original language	English
Pages (from-to)	218-222
Number of pages	5
Journal	Experimental Thermal and Fluid Science
Volume	97
DOIs	https://doi.org/10.1016/j.expthermflusci.2018.04.016
State	Published - Oct 2018
Externally published	Yes

Keywords

Creeping flow
Discharge
Low Reynolds number flow
Micro-fluidics
Micro-orifice
Pressure drop

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10.1016/j.expthermflusci.2018.04.016

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title = "Effect of thickness to diameter ratio on micro-orifice single-phase liquid flow at low Reynolds number",

abstract = "Micro-orifice discharge with single-phase water flow was experimentally investigated with six multi-micro-orifice test pieces with orifice diameter of 200 µm and thickness to diameter ratio between 4.25 and 27.0. During the experiments the Reynolds number varied between 5 and 4500: a range that corresponds to creeping flow and laminar to turbulent transitional flow. The emergence of turbulence, as indirectly deduced from the change in slope of the pressure drop versus mass flow rate profiles, was found to be gradual and smooth. Using the newly generated data presented here, the validity of an existing micro-orifice discharge prediction method for creeping flow conditions was extended to microfluidics applications with thick micro-orifices.",

keywords = "Creeping flow, Discharge, Low Reynolds number flow, Micro-fluidics, Micro-orifice, Pressure drop",

author = "Max Szolcek and Andrea Cioncolini and Fabio Scenini and Michele Curioni",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = oct,

doi = "10.1016/j.expthermflusci.2018.04.016",

language = "英语",

volume = "97",

pages = "218--222",

journal = "Experimental Thermal and Fluid Science",

issn = "0894-1777",

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TY - JOUR

T1 - Effect of thickness to diameter ratio on micro-orifice single-phase liquid flow at low Reynolds number

AU - Szolcek, Max

AU - Cioncolini, Andrea

AU - Scenini, Fabio

AU - Curioni, Michele

PY - 2018/10

Y1 - 2018/10

N2 - Micro-orifice discharge with single-phase water flow was experimentally investigated with six multi-micro-orifice test pieces with orifice diameter of 200 µm and thickness to diameter ratio between 4.25 and 27.0. During the experiments the Reynolds number varied between 5 and 4500: a range that corresponds to creeping flow and laminar to turbulent transitional flow. The emergence of turbulence, as indirectly deduced from the change in slope of the pressure drop versus mass flow rate profiles, was found to be gradual and smooth. Using the newly generated data presented here, the validity of an existing micro-orifice discharge prediction method for creeping flow conditions was extended to microfluidics applications with thick micro-orifices.

AB - Micro-orifice discharge with single-phase water flow was experimentally investigated with six multi-micro-orifice test pieces with orifice diameter of 200 µm and thickness to diameter ratio between 4.25 and 27.0. During the experiments the Reynolds number varied between 5 and 4500: a range that corresponds to creeping flow and laminar to turbulent transitional flow. The emergence of turbulence, as indirectly deduced from the change in slope of the pressure drop versus mass flow rate profiles, was found to be gradual and smooth. Using the newly generated data presented here, the validity of an existing micro-orifice discharge prediction method for creeping flow conditions was extended to microfluidics applications with thick micro-orifices.

KW - Creeping flow

KW - Discharge

KW - Low Reynolds number flow

KW - Micro-fluidics

KW - Micro-orifice

KW - Pressure drop

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U2 - 10.1016/j.expthermflusci.2018.04.016

DO - 10.1016/j.expthermflusci.2018.04.016

M3 - 文章

AN - SCOPUS:85046343373

SN - 0894-1777

VL - 97

SP - 218

EP - 222

JO - Experimental Thermal and Fluid Science

JF - Experimental Thermal and Fluid Science

ER -

Effect of thickness to diameter ratio on micro-orifice single-phase liquid flow at low Reynolds number

Abstract

Keywords

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