Parameter Optimization of Microchannel Structure Based on NSGA-Ⅱ Algorithm
With the rapid development of integrated circuit technology,the development trend of electronic chips tends to be highly integrated,miniaturized and multi-core,and the heat generated during the operation of chips rises sharply.Guided by the distributed heat dissipation of arrays,this paper designs a semi-open microchannel with multiple inlets and single outlets to solve the heat dissipation problem of arrays.Taking the front wedge angle and rib width coefficient of trapezoidal ribs in microchannels as independent variables,and the efficiency and pressure drop of heat transfer as the dependent variables,the NSGA-Ⅱ multi-objective genetic algorithm is used to construct a microchannel structure parameter optimization model.The results show that compared with the optimized channel,the optimized microchannel structure has better heat transfer performance under the same pump power,the Nusselt number is increased by 30％,and the temperature distribution in the microchannel is more uniform.The comprehensive heat transfer performance is much better.
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