Novel turbulence control strategy for simultaneously achieving friction drag reduction and heat transfer augmentation

Koji Fukagata, Kaoru Iwamoto, Nobuhide Kasagi

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

12 Citations (Scopus)

Abstract

An attempt is made for simultaneous, but independent control of skin friction reduction and heat transfer enhancement in a turbulent channel flow. First, a mathematical relation is derived of the contribution of turbulent heat flux to the Nusselt number. Two different thermal boundary conditions are considered: (1) isothermal condition, where two walls are kept at constant, but different temperatures; (2) isoflux condition, where both walls are heated at a given wall heat flux. By utilizing the difference between the derived relation and the similar relation for the skin friction (Fukagata et al., 2002), a strategy for the simultaneous control is proposed. The effects of the control strategy are examined by means of direct numerical simulation.

Original languageEnglish
Title of host publication4th International Symposium on Turbulence and Shear Flow Phenomena
Pages307-312
Number of pages6
Volume1
Publication statusPublished - 2005
Externally publishedYes
Event4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4 - Williamsburg, VA, United States
Duration: 2005 Jun 272005 Jun 29

Other

Other4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4
CountryUnited States
CityWilliamsburg, VA
Period05/6/2705/6/29

Fingerprint

Drag reduction
Turbulence
Skin friction
Friction
Heat transfer
Heat flux
Direct numerical simulation
Channel flow
Nusselt number
Boundary conditions
Temperature

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Fukagata, K., Iwamoto, K., & Kasagi, N. (2005). Novel turbulence control strategy for simultaneously achieving friction drag reduction and heat transfer augmentation. In 4th International Symposium on Turbulence and Shear Flow Phenomena (Vol. 1, pp. 307-312)

Novel turbulence control strategy for simultaneously achieving friction drag reduction and heat transfer augmentation. / Fukagata, Koji; Iwamoto, Kaoru; Kasagi, Nobuhide.

4th International Symposium on Turbulence and Shear Flow Phenomena. Vol. 1 2005. p. 307-312.

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

Fukagata, K, Iwamoto, K & Kasagi, N 2005, Novel turbulence control strategy for simultaneously achieving friction drag reduction and heat transfer augmentation. in 4th International Symposium on Turbulence and Shear Flow Phenomena. vol. 1, pp. 307-312, 4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4, Williamsburg, VA, United States, 05/6/27.
Fukagata K, Iwamoto K, Kasagi N. Novel turbulence control strategy for simultaneously achieving friction drag reduction and heat transfer augmentation. In 4th International Symposium on Turbulence and Shear Flow Phenomena. Vol. 1. 2005. p. 307-312
Fukagata, Koji ; Iwamoto, Kaoru ; Kasagi, Nobuhide. / Novel turbulence control strategy for simultaneously achieving friction drag reduction and heat transfer augmentation. 4th International Symposium on Turbulence and Shear Flow Phenomena. Vol. 1 2005. pp. 307-312
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