Shape optimization of a rotating cooling channel with pin-fins

Mi Ae Moon, Afzal Husain, Kwang Yong Kim

Research output: Contribution to journalArticle

Abstract

This paper describes the design optimization of a rotating rectangular channel with staggered arrays of pin-fins by Kriging metamodeling technique. Two non-dimensional variables, the ratio of the height to the diameter of the pin-fins and the ratio of the spacing between the pin-fins to the diameter of the pin-fins are chosen as the design variables. The objective function that is a linear combination of heat transfer and friction loss related terms with a weighting factor is selected for the optimizatioa To construct the Kriging model, objective function values at 20 training points generated by Latin hypercube sampling are evaluated by a three-dimensional Reynolds-averaged Navier-Stokes (RANS) analysis method with the SST turbulence model. The Kriging model predicts the objective function value that agrees well with the value calculated by the RANS analysis at the optimum point. The objective function is reduced by 11% by the optimization of the channel.

Original languageEnglish
Pages (from-to)703-714
Number of pages12
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume34
Issue number7
DOIs
Publication statusPublished - Jul 2010

Keywords

  • Heat transfer
  • Krigjng model
  • Optimization
  • Pin-fin
  • RANS analysis(RANS)

ASJC Scopus subject areas

  • Mechanical Engineering

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