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From Noisy Particle Tracks to Velocity, Acceleration and Pressure Fields using B-splines and Penalties

Gesemann, Sebastian and Huhn, Florian and Schanz, Daniel and Schröder, Andreas (2016) From Noisy Particle Tracks to Velocity, Acceleration and Pressure Fields using B-splines and Penalties. 18th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 04. - 07. July 2016, Lisbon, Portugal.

Full text not available from this repository.

Official URL: http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2016/finalworks2016/papers/04.5_4_186paper.pdf

Abstract

Recent advances in particle tracking methods for flow measurements ([Scha14], [Scha15]) allow reconstruction of particle distributions with high particle densities that could previously only be handled with tomographic reconstruction methods. High particle densities enable reconstructions of flow fields with high spatial resolution. The STB method for tracking particles has been proven to provide more accurate estimates of particle positions without reconstructing “ghost particles” while at the same time saving time and memory compared to tomographic reconstructions. In this work, B-spline based methods for noise reduction and reconstruction of velocity, acceleration and pressure fields based on the particle track data are described and evaluated using synthetic data. The goal of these methods is to reconstruct accurate and high resolution velocity, acceleration and pressure fields. This is achieved by using the particle data directly and exploiting known physical properties such as a freedom of divergence of velocity and the Navier-Stokes equation for incompressible and uniform-density flows.

Item URL in elib:https://elib.dlr.de/101422/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Paper 04.5_4_186
Title:From Noisy Particle Tracks to Velocity, Acceleration and Pressure Fields using B-splines and Penalties
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gesemann, Sebastiansebastian.gesemann (at) dlr.deUNSPECIFIED
Huhn, Florianflorian.huhn (at) dlr.deUNSPECIFIED
Schanz, Danieldaniel.schanz (at) dlr.deUNSPECIFIED
Schröder, Andreasandreas.schroeder (at) dlr.deUNSPECIFIED
Date:2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-17
Series Name:Conference Proceedings online, Book of Abstracts
Status:Published
Keywords:Particle Tracking, Noise Reduction, Interpolation, B-splines
Event Title:18th International Symposium on Applications of Laser Techniques to Fluid Mechanics
Event Location:Lisbon, Portugal
Event Type:international Conference
Event Dates:04. - 07. July 2016
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:25 Jul 2016 16:33
Last Modified:25 Jul 2016 16:39

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