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‘Shake The Box’: Lagrangian particle tracking in densely seeded flows at high spatial resolution

Schanz, Daniel and Schröder, Andreas and Gesemann, Sebastian and Wieneke, Bernhard (2015) ‘Shake The Box’: Lagrangian particle tracking in densely seeded flows at high spatial resolution. Ninth International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9), 30. June - 03. July 2015, Melbourne, Australia.

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Official URL: http://tsfp9.org/


Great progress has been made in the field of optical and particle based measurement techniques for (turbulent) flow investigations in the past few decades. The rise of digital high- frame rate and dual-frame cameras and powerful pulse lasers enabled a special breakthrough for PIV and PTV measurement techniques. PIV delivers spatially well resolved velocity vectors in a 2D- or 3Ddomain in an Eulerian frame of reference and thus the velocity gradient tensor, while PTV determines Lagrangian particle tracks with a limited spatial density, but high accuracy of the particle velocity estimation due to temporal filtering by appropriate (polynomial) fitting functions. Therefore, from properly designed 3D PTV experiments high-resolution turbulence statistics can be calculated including e.g. mean profiles or the Reynolds stress tensor. The newly developed 4D PTV technique Shake The Box (STB) has been introduced recently (Schanz et al. 2013b, Schanz et al. 2014) and is capable of delivering highly accurate and dense velocity information in a volume of the flow by reconstructing a large amount of Lagrangian particle tracks from a time series of particle images. The main advantages of such data for turbulence (shear) flow research are the possibility to bridge between Eulerian and Lagrangian frames of reference and to provide relevant measures for local and global velocity statistics at high spatial and temporal resolution.

Item URL in elib:https://elib.dlr.de/90216/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Vortrag wurde von Herrn Wieneke gehalten
Title:‘Shake The Box’: Lagrangian particle tracking in densely seeded flows at high spatial resolution
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schanz, Danieldaniel.schanz (at) dlr.deUNSPECIFIED
Schröder, Andreasandreas.schroeder (at) dlr.deUNSPECIFIED
Gesemann, Sebastiansebastian.gesemann (at) dlr.deUNSPECIFIED
Wieneke, BernhardLaVision, Göttingen, DUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-6
Series Name:Conference Proceedings on USB-Stick
Keywords:4D-PTV, Lagrangian, Shake The Box, high spatial resolution
Event Title:Ninth International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9)
Event Location:Melbourne, Australia
Event Type:international Conference
Event Dates:30. June - 03. July 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:21 Aug 2015 13:25
Last Modified:21 Aug 2015 13:25

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