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

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

Abstract

Micro-orifice discharge with single-phase water flow was experimentally investigated with six multimicro-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	4
Journal	Experimental Thermal and Fluid Science: international journal of experimental heat transfer, thermodynamics, and fluid mechanics
Volume	97
Early online date	19 Apr 2018
DOIs	https://doi.org/10.1016/j.expthermflusci.2018.04.016
Publication status	Published - Oct 2018

Keywords

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

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

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

year = "2018",

month = oct,

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

language = "English",

volume = "97",

pages = "218--222",

journal = "Experimental Thermal and Fluid Science: international journal of experimental heat transfer, thermodynamics, and fluid mechanics",

issn = "0894-1777",

publisher = "Elsevier BV",

}

Effect of thickness to diameter ratio on micro-orifice single-phase liquid flow at low Reynolds number. / Szolcek, Max; Cioncolini, Andrea; Scenini, Fabio et al.
In: Experimental Thermal and Fluid Science: international journal of experimental heat transfer, thermodynamics, and fluid mechanics, Vol. 97, 10.2018, p. 218-222.

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

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 multimicro-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 multimicro-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 - Micro-orifice

KW - Micro-fluidics

KW - Pressure drop

KW - Low Reynolds number flow

KW - Discharge

KW - Creeping flow

U2 - 10.1016/j.expthermflusci.2018.04.016

DO - 10.1016/j.expthermflusci.2018.04.016

M3 - Article

SN - 0894-1777

VL - 97

SP - 218

EP - 222

JO - Experimental Thermal and Fluid Science: international journal of experimental heat transfer, thermodynamics, and fluid mechanics

JF - Experimental Thermal and Fluid Science: international journal of experimental heat transfer, thermodynamics, and fluid mechanics

ER -

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

Abstract

Keywords

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