Two-dimensional topology optimization of fluid channel distributions – pressure objective

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Nel, G.

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International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics

Abstract

Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.
In this two dimensional numerical study, miniature cooling channel lay-outs were obtained using topology optimization techniques. Laminar steady state flow was considered for different inlet and outlet configurations. A pressure minimization objective was considered in this paper. The physics of the primary system was controlled via a discreet design variable set and implemented in the model using the finite volume method. To improve convection effects, design level cells were sub-divided into up to three by three computational sub cells. It was found that improved material distributions with discrete solid-to-liquid interfaces were obtained when a global (domain wise) objective function was used and the placement of solid and liquid cells were done according to the gradient-based sensitivities of the objective functions. It was found that flow-rate-specific topology optimization was needed to reduce over-all pressure drop.

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Fluid channel distributions, Topology optimization, Numerical study, Pressure minimization, Finite volume method, Convection effects

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Citation

Nel, G, Dirker, J, Meyer, JP 2014, 'Two-dimensional topology optimization of fluid channel distributions – pressure objective', Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.