Large eddy simulation of the effects of inner wall rotation on heat transfer in annular turbulent flow

Joon Sang Lee; Xiaofeng Xu; Richard H. Pletcher

doi:10.1080/10407780490478416

Large eddy simulation of the effects of inner wall rotation on heat transfer in annular turbulent flow

Joon Sang Lee, Xiaofeng Xu, Richard H. Pletcher

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

A large eddy simulation has been performed to investigate the effect of swirl on the heat and momentum transfer in an annular pipe flow with a rotating inner wall. The compressible filtered Navier-Stokes equations were solved using a second-order-accurate finite-volume method. Low-Mach-number preconditioning was used to enable the compressible code to work efficiently at low Mach numbers. A dynamic subgrid-scale stress model accounted for the subgrid-scale turbulence. A nonuniform grid in the radial direction yielded very accurate solutions using a reasonable number of grid points. The numerical results are summarized and compared with the experimental results of previous studies. The simulations indicated that the Nusselt number and the wall friction coefficient increased with increasing rotation speed of the wall. It was also observed that the axial velocity profile became flattened and turbulent intensities were enhanced due to swirl. This modification of the turbulent structures was closely related to the increase of the Nusselt number and the friction coefficient.

Original language	English
Pages (from-to)	323-341
Number of pages	19
Journal	Numerical Heat Transfer; Part A: Applications
Volume	46
Issue number	4
DOIs	https://doi.org/10.1080/10407780490478416
Publication status	Published - 2004 Aug 20

Bibliographical note

Funding Information:
Received 26 September 2003; accepted 16 April 2004. The authors are grateful to the National Science Foundation (NSF) and the U.S. Department of Energy under the NERI program for support through grants CTS-9806989 and DE-FG03-995F21924, respectively. The Iowa State High Performance Computing Center and University of the Minnesota Supercomputing Institute provided computational resources needed for this research. Address correspondence to Richard H. Pletcher, Department of Mechanical Engineering, 3024 Black Engineering Building, Iowa State University, Ames, IA 50011, USA. E-mail: pletcher@iastate.edu

All Science Journal Classification (ASJC) codes

Numerical Analysis
Condensed Matter Physics

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10.1080/10407780490478416

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title = "Large eddy simulation of the effects of inner wall rotation on heat transfer in annular turbulent flow",

abstract = "A large eddy simulation has been performed to investigate the effect of swirl on the heat and momentum transfer in an annular pipe flow with a rotating inner wall. The compressible filtered Navier-Stokes equations were solved using a second-order-accurate finite-volume method. Low-Mach-number preconditioning was used to enable the compressible code to work efficiently at low Mach numbers. A dynamic subgrid-scale stress model accounted for the subgrid-scale turbulence. A nonuniform grid in the radial direction yielded very accurate solutions using a reasonable number of grid points. The numerical results are summarized and compared with the experimental results of previous studies. The simulations indicated that the Nusselt number and the wall friction coefficient increased with increasing rotation speed of the wall. It was also observed that the axial velocity profile became flattened and turbulent intensities were enhanced due to swirl. This modification of the turbulent structures was closely related to the increase of the Nusselt number and the friction coefficient.",

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note = "Funding Information: Received 26 September 2003; accepted 16 April 2004. The authors are grateful to the National Science Foundation (NSF) and the U.S. Department of Energy under the NERI program for support through grants CTS-9806989 and DE-FG03-995F21924, respectively. The Iowa State High Performance Computing Center and University of the Minnesota Supercomputing Institute provided computational resources needed for this research. Address correspondence to Richard H. Pletcher, Department of Mechanical Engineering, 3024 Black Engineering Building, Iowa State University, Ames, IA 50011, USA. E-mail: pletcher@iastate.edu",

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N2 - A large eddy simulation has been performed to investigate the effect of swirl on the heat and momentum transfer in an annular pipe flow with a rotating inner wall. The compressible filtered Navier-Stokes equations were solved using a second-order-accurate finite-volume method. Low-Mach-number preconditioning was used to enable the compressible code to work efficiently at low Mach numbers. A dynamic subgrid-scale stress model accounted for the subgrid-scale turbulence. A nonuniform grid in the radial direction yielded very accurate solutions using a reasonable number of grid points. The numerical results are summarized and compared with the experimental results of previous studies. The simulations indicated that the Nusselt number and the wall friction coefficient increased with increasing rotation speed of the wall. It was also observed that the axial velocity profile became flattened and turbulent intensities were enhanced due to swirl. This modification of the turbulent structures was closely related to the increase of the Nusselt number and the friction coefficient.

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Large eddy simulation of the effects of inner wall rotation on heat transfer in annular turbulent flow

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