Determination of the normal fluid load on inclined cylinders from optical measurements of the reconfiguration of flexible filaments in flow

Jorge Silva-Leon; Andrea Cioncolini; Antonio Filippone

doi:10.1016/j.jfluidstructs.2017.10.009

Determination of the normal fluid load on inclined cylinders from optical measurements of the reconfiguration of flexible filaments in flow

Jorge Silva-Leon^*, Andrea Cioncolini, Antonio Filippone

^*Corresponding author for this work

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

9 Scopus citations

Abstract

Reconfigured flexible filaments exposed to steady fluid load were investigated using a novel non-contact optical technique to measure the normal fluid force due to the fluid loading on inclined cylinders for Reynolds numbers from 25 to 460: a range not covered in previous studies that is of relevance in drag reduction and energy harvesting applications. The ranges of the buoyancy number and the Cauchy number covered in the tests were 3.6×10⁴≤B≤2.1×10⁶ and 7.6×10⁴≤Ca≤1.4×10⁷. These newly generated data were then used to assess and extend the validity of existing prediction methods for the normal fluid force at low Reynolds numbers. New prediction methods for the equilibrium inclination angle and for the fluid dynamics load were developed for small Reynolds number applications, based on extrapolating existing theoretical results for marine vegetation.

Original language	English
Pages (from-to)	488-505
Number of pages	18
Journal	Journal of Fluids and Structures
Volume	76
DOIs	https://doi.org/10.1016/j.jfluidstructs.2017.10.009
State	Published - Jan 2018
Externally published	Yes

Keywords

Flexible filaments
Inclined cylinders
Normal fluid force
Reconfigured structure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jfluidstructs.2017.10.009

Cite this

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title = "Determination of the normal fluid load on inclined cylinders from optical measurements of the reconfiguration of flexible filaments in flow",

abstract = "Reconfigured flexible filaments exposed to steady fluid load were investigated using a novel non-contact optical technique to measure the normal fluid force due to the fluid loading on inclined cylinders for Reynolds numbers from 25 to 460: a range not covered in previous studies that is of relevance in drag reduction and energy harvesting applications. The ranges of the buoyancy number and the Cauchy number covered in the tests were 3.6×104≤B≤2.1×106 and 7.6×104≤Ca≤1.4×107. These newly generated data were then used to assess and extend the validity of existing prediction methods for the normal fluid force at low Reynolds numbers. New prediction methods for the equilibrium inclination angle and for the fluid dynamics load were developed for small Reynolds number applications, based on extrapolating existing theoretical results for marine vegetation.",

keywords = "Flexible filaments, Inclined cylinders, Normal fluid force, Reconfigured structure",

author = "Jorge Silva-Leon and Andrea Cioncolini and Antonio Filippone",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = jan,

doi = "10.1016/j.jfluidstructs.2017.10.009",

language = "英语",

volume = "76",

pages = "488--505",

journal = "Journal of Fluids and Structures",

issn = "0889-9746",

publisher = "Academic Press Inc.",

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TY - JOUR

T1 - Determination of the normal fluid load on inclined cylinders from optical measurements of the reconfiguration of flexible filaments in flow

AU - Silva-Leon, Jorge

AU - Cioncolini, Andrea

AU - Filippone, Antonio

PY - 2018/1

Y1 - 2018/1

N2 - Reconfigured flexible filaments exposed to steady fluid load were investigated using a novel non-contact optical technique to measure the normal fluid force due to the fluid loading on inclined cylinders for Reynolds numbers from 25 to 460: a range not covered in previous studies that is of relevance in drag reduction and energy harvesting applications. The ranges of the buoyancy number and the Cauchy number covered in the tests were 3.6×104≤B≤2.1×106 and 7.6×104≤Ca≤1.4×107. These newly generated data were then used to assess and extend the validity of existing prediction methods for the normal fluid force at low Reynolds numbers. New prediction methods for the equilibrium inclination angle and for the fluid dynamics load were developed for small Reynolds number applications, based on extrapolating existing theoretical results for marine vegetation.

AB - Reconfigured flexible filaments exposed to steady fluid load were investigated using a novel non-contact optical technique to measure the normal fluid force due to the fluid loading on inclined cylinders for Reynolds numbers from 25 to 460: a range not covered in previous studies that is of relevance in drag reduction and energy harvesting applications. The ranges of the buoyancy number and the Cauchy number covered in the tests were 3.6×104≤B≤2.1×106 and 7.6×104≤Ca≤1.4×107. These newly generated data were then used to assess and extend the validity of existing prediction methods for the normal fluid force at low Reynolds numbers. New prediction methods for the equilibrium inclination angle and for the fluid dynamics load were developed for small Reynolds number applications, based on extrapolating existing theoretical results for marine vegetation.

KW - Flexible filaments

KW - Inclined cylinders

KW - Normal fluid force

KW - Reconfigured structure

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U2 - 10.1016/j.jfluidstructs.2017.10.009

DO - 10.1016/j.jfluidstructs.2017.10.009

M3 - 文章

AN - SCOPUS:85035076290

SN - 0889-9746

VL - 76

SP - 488

EP - 505

JO - Journal of Fluids and Structures

JF - Journal of Fluids and Structures

ER -

Determination of the normal fluid load on inclined cylinders from optical measurements of the reconfiguration of flexible filaments in flow

Abstract

Keywords

UN SDGs

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