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Turb. Bound. Layers

Effects of multi-scale rough patches on hydrodynamics and scalar dispersion in turbulent boundary layers

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

Turb. Bound. Layers project word cloud

Explore the words cloud of the Turb. Bound. Layers project. It provides you a very rough idea of what is the project "Turb. Bound. Layers" about.

surfaces energy turbulent experimentally engineering experiments models variety surface water irregularities university layers mechanism velocimetry limited irregular uos topologies barnacles wall fall flow fundamental laser isolate patterns custom atmospheric aerodynamics performed manufactured shear boundary designed image geometry expertise containing experimental flows dynamics force hulls entire transportation environmental distributions fractal wind combined practical cities achievable fluorescence forests leveraging effect relevance ship natural particle world patches layer homogeneous balance roughness dispersion channel majority planar patch local structure setting groundwork placed fellow southampton friction parameterization tunnel fluid

Project "Turb. Bound. Layers" data sheet

The following table provides information about the project.

Coordinator	UNIVERSITY OF SOUTHAMPTON Organization address address: Highfield city: SOUTHAMPTON postcode: SO17 1BJ website: http://www.southampton.ac.uk contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	United Kingdom [UK]
Project website	https://www.southampton.ac.uk/engineering/about/staff/cmv1n13.page
Total cost	183˙454 €
EC max contribution	183˙454 € (100%)
Programme	1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
Code Call	H2020-MSCA-IF-2014
Funding Scheme	MSCA-IF-EF-ST
Starting year	2015
Duration (year-month-day)	from 2015-05-01 to 2017-11-28

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	UNIVERSITY OF SOUTHAMPTON UNIVERSITY OF SOUTHAMPTON Organization address address: Highfield city: SOUTHAMPTON postcode: SO17 1BJ website: http://www.southampton.ac.uk contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	UK (SOUTHAMPTON)	coordinator	183˙454.00

Map

Project objective

The objective of the proposed research initiative is to experimentally investigate the effects of irregular multi-scale wall roughness on turbulent boundary layers. It is widely understood that wall roughness has a significant effect on turbulent boundary layers, however the majority of the existing research on this complex mechanism has been limited to homogeneous distributions of roughness covering the entire surface. Current models fall short for the majority of real-world flows that develop over surfaces with natural irregularities such as flows over ship hulls containing barnacles or atmospheric flows over cities or forests.

In this proposed research, a range of experiments will be carried out to investigate the flow around custom-manufactured patches of wall roughness placed within a turbulent boundary layer. Wall roughness elements will be designed using fractal patterns in order to isolate the multi-scale effects of the roughness geometry. Measurements will be performed in a wind tunnel and in a water channel at the University of Southampton (UoS), using a force balance to directly measure the wall friction, particle image velocimetry to measure the local flow structure, and planar-laser-induced fluorescence to measure the local dispersion for a variety of different patch topologies.

This work will further the fundamental understanding of turbulent boundary layer flows and will have practical relevance to environmental, transportation, and energy engineering by setting the groundwork for the understanding and parameterization of multi-scale roughness effects. This ambitious research initiative will be achievable by leveraging the combined expertise of the proposed Fellow in experimental fluid dynamics and turbulent shear flows and the expertise of the UoS in aerodynamics and turbulent boundary layer research.

Publications

List of publications.
year	authors and title	journal	last update
2017	C. Vanderwel, M. Placidi, B. Ganapathisubramani Wind resource assessment in heterogeneous terrain published pages: 20160109, ISSN: 1364-503X, DOI: 10.1098/rsta.2016.0109	Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375/2091	2019-06-13
2017	Vanderwel, C. and Ganapathisubramani, B. Turbulent boundary layers over multiscale roughpatches published pages: , ISSN: , DOI:	10th International Symposium on Turbulence and Shear Flow Phenomena TSFP10	2019-06-13

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