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Pressure fields from high-resolution time-resolved particle tracking velocimetry in 3D turbulent flows

Huhn, Florian and Schanz, Daniel and Gesemann, Sebastian and Schröder, Andreas (2015) Pressure fields from high-resolution time-resolved particle tracking velocimetry in 3D turbulent flows. Workshop on Non-Intrusive measurements for unsteady flows and aerodynamics - NIM2015 -, 27. - 29. Nov. 2015, Poitiers, France.

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Official URL: http://nim2015.conference.univ-poitiers.fr/

Abstract

We present the measurement of unsteady 3D pressure fields in turbulent flows. The pressure gradient field is obtained based on the material acceleration of single particle trajectories from high-density particle tracking velocimetry (PTV), assuming the governing momentum equation. For the integration of the pressure gradient, we propose a new method that is based on Helmholtz decomposition and integration in Fourier space. We show pressure fields for two experiments, a large-scale convective flow in air and a jet flow in water.

Item URL in elib:https://elib.dlr.de/98605/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Session 5 - Pressure Evaluation
Title:Pressure fields from high-resolution time-resolved particle tracking velocimetry in 3D turbulent flows
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Huhn, Florianflorian.huhn (at) dlr.deUNSPECIFIED
Schanz, Danieldaniel.schanz (at) dlr.deUNSPECIFIED
Gesemann, Sebastiansebastian.gesemann (at) dlr.deUNSPECIFIED
Schröder, Andreasandreas.schroeder (at) dlr.deUNSPECIFIED
Date:2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 85-88
Series Name:Workshop Proceedings on CD-ROM
Status:Published
Keywords:optical flow measurement, pressure reconstruction, pressure field, PTV, Shake-The-Box, FlowFit
Event Title:Workshop on Non-Intrusive measurements for unsteady flows and aerodynamics - NIM2015 -
Event Location:Poitiers, France
Event Type:Workshop
Event Dates:27. - 29. Nov. 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:17 Nov 2015 14:45
Last Modified:10 May 2016 23:32

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