Experimental assessment of PIV/PTV-based pressure reconstruction techniques applied to a low-speed base flow

Paul van Gent, Valeria Gentile, Bas van Oudheusden, Ferdinand Schrijer

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

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Abstract

Quantification of surface pressure is critical for the efficient design of aerospace structures. One way of measuring pressure is PIV/PTV-based pressure reconstruction [1]. In this approach, PIV/PTV data are used to determine the material acceleration and subsequently pressure via the momentum equation. In recent years, the technique has become increasingly feasible and appealing due to the development of (time-resolved) volumetric diagnostic capabilities, such as tomographic PIV [2] and Lagrangian particle tracking [3]. The performance of a variety of state-of-the-art techniques was recently assessed for the case of a transonic base flow within the collaborative European framework programs 'NIOPLEX' [4]. Since the NIOPLEX test case considers a simulated experiment, it does not necessarily demonstrate the actual capabilities of PIV/PTV-based pressure reconstruction techniques for realistic measurement conditions.
The present study overcomes this limitation by reconstructing pressure from actual PIV/PTV measurements of a flow that is similar to the NIOPLEX test case, i.e. an axisymmetric step albeit in a low-speed flow, facilitating comparison. Reference measurements are obtained using microphones and static pressure sensors to provide a source for comparison
Original languageEnglish
Title of host publicationProceedings of the International Workshop on Non-Intrusive Optical Flow Diagnostic
Subtitle of host publicationDelft, The Netherlands
Number of pages5
Publication statusPublished - 2016
EventInternational Workshop on Non-Intrusive Optical Flow Diagnostics - TU Delft, The Aerospace Engineering Department, Delft, Netherlands
Duration: 25 Oct 201626 Oct 2016
http://nioplex.eu/?tribe_events=nioplex-international-workshop-on-non-intrusive-optical-flow-diagnostics

Conference

ConferenceInternational Workshop on Non-Intrusive Optical Flow Diagnostics
CountryNetherlands
CityDelft
Period25/10/1626/10/16
Internet address

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    van Gent, P., Gentile, V., van Oudheusden, B., & Schrijer, F. (2016). Experimental assessment of PIV/PTV-based pressure reconstruction techniques applied to a low-speed base flow. In Proceedings of the International Workshop on Non-Intrusive Optical Flow Diagnostic: Delft, The Netherlands