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FlowFit II Implementation Details

Gesemann, Sebastian (2016) FlowFit II Implementation Details. Workshop on CFD Processing Techniques for Particle Image and Tracking, Lisbon, Portugal.

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Abstract

Since 2013 we have been developing methods for spatial interpolation of scattered velocity and acceleration data to complement particle tracking techniques that yield such data with a high enough spatial resolution [Scha14][Scha16]. This presentation highlights some of the properties and implementation details of the methods we termed “FlowFit” and “FlowFit 2”. Both make use of uniform 3D B-splines to represent velocity, acceleration or pressure fields and determine these fields by minimizing a cost function which possibly accounts for some physical constraints as well by penalization. The first generation FlowFit has been used in our submissions of the 4th PIV Challenge [Käh16]. It reconstructs either velocity or acceleration. The second generation FlowFit combines these two reconstruction problems into a single one to exploit more of the physical constraints we know should hold in order to improve the reconstruction quality.

Item URL in elib:https://elib.dlr.de/105885/
Document Type:Conference or Workshop Item (Speech)
Additional Information:http://cfdforpiv.dlr.de/
Title:FlowFit II Implementation Details
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gesemann, Sebastiansebastian.gesemann (at) dlr.deUNSPECIFIED
Date:2016
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:FlowFit, 3D B-splines
Event Title:Workshop on CFD Processing Techniques for Particle Image and Tracking
Event Location:Lisbon, Portugal
Event Type:Workshop
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: Bachmann, Barbara
Deposited On:16 Dec 2016 12:02
Last Modified:16 Dec 2016 12:02

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