BiGlobal stability analysis of a micro-ramp wake using PIV base flows

Koen J. Groot; Qingqing Ye; Bas W. van Oudheusden; Yue Zhang; Fabio Pinna

doi:10.2514/6.2016-4383

BiGlobal stability analysis of a micro-ramp wake using PIV base flows

Koen J. Groot, Qingqing Ye, Bas W. van Oudheusden, Yue Zhang, Fabio Pinna

Aerodynamics

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

5 Citations (Scopus)

Abstract

Hairpin shaped Kelvin-Helmholtz waves are observed in tomographic PIV experiments on a micro-ramp wake. In this study, these waves are reproduced by applying BiGlobal stability theory to base flows conceived with the measurement data. The stability results converge with the number of instantaneous snapshots used for the base ow. The most unstable wavelength lies in the experimentally observed range and the flow structure closely resembles that shown in the snapshots.

Original language	English
Title of host publication	46th AIAA Fluid Dynamics Conference
Publisher	American Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages	12
ISBN (Electronic)	978-1-62410-436-7
DOIs	https://doi.org/10.2514/6.2016-4383
Publication status	Published - 2016
Event	46th AIAA Fluid Dynamics Conference, 2016 - Washington, United States Duration: 13 Jun 2016 → 17 Jun 2016 Conference number: 46 https://doi.org/10.2514/MFD16

Conference

Conference	46th AIAA Fluid Dynamics Conference, 2016
Country/Territory	United States
City	Washington
Period	13/06/16 → 17/06/16
Internet address	https://doi.org/10.2514/MFD16

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title = "BiGlobal stability analysis of a micro-ramp wake using PIV base flows",

abstract = "Hairpin shaped Kelvin-Helmholtz waves are observed in tomographic PIV experiments on a micro-ramp wake. In this study, these waves are reproduced by applying BiGlobal stability theory to base flows conceived with the measurement data. The stability results converge with the number of instantaneous snapshots used for the base ow. The most unstable wavelength lies in the experimentally observed range and the flow structure closely resembles that shown in the snapshots.",

author = "Groot, {Koen J.} and Qingqing Ye and {van Oudheusden}, {Bas W.} and Yue Zhang and Fabio Pinna",

year = "2016",

doi = "10.2514/6.2016-4383",

language = "English",

booktitle = "46th AIAA Fluid Dynamics Conference",

publisher = "American Institute of Aeronautics and Astronautics Inc. (AIAA)",

address = "United States",

note = "46th AIAA Fluid Dynamics Conference, 2016 ; Conference date: 13-06-2016 Through 17-06-2016",

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Groot, KJ, Ye, Q, van Oudheusden, BW, Zhang, Y & Pinna, F 2016, BiGlobal stability analysis of a micro-ramp wake using PIV base flows. in 46th AIAA Fluid Dynamics Conference., AIAA 2016-4383, American Institute of Aeronautics and Astronautics Inc. (AIAA), 46th AIAA Fluid Dynamics Conference, 2016, Washington, District of Columbia, United States, 13/06/16. https://doi.org/10.2514/6.2016-4383

BiGlobal stability analysis of a micro-ramp wake using PIV base flows. / Groot, Koen J.; Ye, Qingqing; van Oudheusden, Bas W. et al.
46th AIAA Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc. (AIAA), 2016. AIAA 2016-4383.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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T1 - BiGlobal stability analysis of a micro-ramp wake using PIV base flows

AU - Groot, Koen J.

AU - Ye, Qingqing

AU - van Oudheusden, Bas W.

AU - Zhang, Yue

AU - Pinna, Fabio

N1 - Conference code: 46

PY - 2016

Y1 - 2016

N2 - Hairpin shaped Kelvin-Helmholtz waves are observed in tomographic PIV experiments on a micro-ramp wake. In this study, these waves are reproduced by applying BiGlobal stability theory to base flows conceived with the measurement data. The stability results converge with the number of instantaneous snapshots used for the base ow. The most unstable wavelength lies in the experimentally observed range and the flow structure closely resembles that shown in the snapshots.

AB - Hairpin shaped Kelvin-Helmholtz waves are observed in tomographic PIV experiments on a micro-ramp wake. In this study, these waves are reproduced by applying BiGlobal stability theory to base flows conceived with the measurement data. The stability results converge with the number of instantaneous snapshots used for the base ow. The most unstable wavelength lies in the experimentally observed range and the flow structure closely resembles that shown in the snapshots.

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U2 - 10.2514/6.2016-4383

DO - 10.2514/6.2016-4383

M3 - Conference contribution

BT - 46th AIAA Fluid Dynamics Conference

PB - American Institute of Aeronautics and Astronautics Inc. (AIAA)

T2 - 46th AIAA Fluid Dynamics Conference, 2016

Y2 - 13 June 2016 through 17 June 2016

ER -

BiGlobal stability analysis of a micro-ramp wake using PIV base flows

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