Effects of interval of spanwise-modulated local forcing on mechanisms of flow separation control

A. Yakeno; Y. Abe; S. Kawai; T. Nonomura; K. Fujii

Effects of interval of spanwise-modulated local forcing on mechanisms of flow separation control

A. Yakeno, Y. Abe, S. Kawai, T. Nonomura, K. Fujii

Research output: Contribution to journal › Conference article › peer-review

Abstract

We investigate the effects of the spanwise-modulation interval of local forcing on the mechanisms of flow separation control around a two-dimensional hump. It is shown that a spanwise modulation of y = 0:08 maximally increases the three-dimensional velocity fluctuations and leads to reattachment. Static local-forcing is assumed to promote the lift-up effects of the bypass transition of the streaks. Perturbation growth might be dependent on the spanwise interval of the forcing.

Original language	English
Pages (from-to)	719-722
Number of pages	4
Journal	Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer
Volume	0
Publication status	Published - 2015 Jan 1
Externally published	Yes
Event	8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015 - Sarajevo, Bosnia and Herzegovina Duration: 2015 Sep 15 → 2015 Sep 18

ASJC Scopus subject areas

Fluid Flow and Transfer Processes

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title = "Effects of interval of spanwise-modulated local forcing on mechanisms of flow separation control",

abstract = "We investigate the effects of the spanwise-modulation interval of local forcing on the mechanisms of flow separation control around a two-dimensional hump. It is shown that a spanwise modulation of y = 0:08 maximally increases the three-dimensional velocity fluctuations and leads to reattachment. Static local-forcing is assumed to promote the lift-up effects of the bypass transition of the streaks. Perturbation growth might be dependent on the spanwise interval of the forcing.",

author = "A. Yakeno and Y. Abe and S. Kawai and T. Nonomura and K. Fujii",

year = "2015",

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language = "English",

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pages = "719--722",

journal = "Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer",

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note = "8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015 ; Conference date: 15-09-2015 Through 18-09-2015",

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TY - JOUR

T1 - Effects of interval of spanwise-modulated local forcing on mechanisms of flow separation control

AU - Yakeno, A.

AU - Abe, Y.

AU - Kawai, S.

AU - Nonomura, T.

AU - Fujii, K.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We investigate the effects of the spanwise-modulation interval of local forcing on the mechanisms of flow separation control around a two-dimensional hump. It is shown that a spanwise modulation of y = 0:08 maximally increases the three-dimensional velocity fluctuations and leads to reattachment. Static local-forcing is assumed to promote the lift-up effects of the bypass transition of the streaks. Perturbation growth might be dependent on the spanwise interval of the forcing.

AB - We investigate the effects of the spanwise-modulation interval of local forcing on the mechanisms of flow separation control around a two-dimensional hump. It is shown that a spanwise modulation of y = 0:08 maximally increases the three-dimensional velocity fluctuations and leads to reattachment. Static local-forcing is assumed to promote the lift-up effects of the bypass transition of the streaks. Perturbation growth might be dependent on the spanwise interval of the forcing.

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M3 - Conference article

AN - SCOPUS:85073489989

VL - 0

SP - 719

EP - 722

JO - Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer

JF - Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer

SN - 2377-2816

T2 - 8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015

Y2 - 15 September 2015 through 18 September 2015

ER -