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 language | English |
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Pages (from-to) | 703-714 |
Number of pages | 12 |
Journal | Transactions of the Korean Society of Mechanical Engineers, B |
Volume | 34 |
Issue number | 7 |
DOIs | |
Publication status | Published - Jul 2010 |
Externally published | Yes |
Keywords
- Heat transfer
- Krigjng model
- Optimization
- Pin-fin
- RANS analysis(RANS)
ASJC Scopus subject areas
- Mechanical Engineering