Opposition control of turbulent taylor-couette flow

Christophe Le Dauphin, Koji Fukagata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Direct numerical simulations (DNS) of an opposition-controlled turbulent Taylor-Couette (TC) flow is performed. Opposition control is then applied. Significant drag reduction is achieved by opposition control and the skin friction drag is decreased up to 31% with the wall-normal control. Strong modifications of the turbulence statistics in the near-wall region are observed. The streamwise velocity fluctuation is greatly reduced and shows a more symmetric profile. The origin of the boundary layers seems to undergo a displacement toward the middle of the flow. Besides, the visualization of the coherent flow structures shows a significant reduction of their number when the control is applied. In a further step, the combination of wall-normal and spanwise control, as well as the influence of the gain on the input response are investigated. The efficiency of this control strategy is then compared with the opposition control.

Original languageEnglish
Title of host publicationASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
Pages3895-3903
Number of pages9
Volume1
EditionPARTS A, B, C, D
DOIs
Publication statusPublished - 2011
EventASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011 - Hamamatsu, Japan
Duration: 2011 Jul 242011 Jul 29

Other

OtherASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
CountryJapan
CityHamamatsu
Period11/7/2411/7/29

Fingerprint

Drag reduction
Skin friction
Direct numerical simulation
Flow structure
Drag
Boundary layers
Turbulence
Visualization
Statistics

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Le Dauphin, C., & Fukagata, K. (2011). Opposition control of turbulent taylor-couette flow. In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011 (PARTS A, B, C, D ed., Vol. 1, pp. 3895-3903) https://doi.org/10.1115/AJK2011-25007

Opposition control of turbulent taylor-couette flow. / Le Dauphin, Christophe; Fukagata, Koji.

ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011. Vol. 1 PARTS A, B, C, D. ed. 2011. p. 3895-3903.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Le Dauphin, C & Fukagata, K 2011, Opposition control of turbulent taylor-couette flow. in ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011. PARTS A, B, C, D edn, vol. 1, pp. 3895-3903, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011, Hamamatsu, Japan, 11/7/24. https://doi.org/10.1115/AJK2011-25007
Le Dauphin C, Fukagata K. Opposition control of turbulent taylor-couette flow. In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011. PARTS A, B, C, D ed. Vol. 1. 2011. p. 3895-3903 https://doi.org/10.1115/AJK2011-25007
Le Dauphin, Christophe ; Fukagata, Koji. / Opposition control of turbulent taylor-couette flow. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011. Vol. 1 PARTS A, B, C, D. ed. 2011. pp. 3895-3903
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