Optimal design method of conjugate heat transfer radiator with variable cross-section runner

Abstract

The invention discloses an optimal design method for a conjugate heat transfer radiator with a cross-section runner. The method comprises the following steps: determining inlet and outlet positions, geometric dimensions and system boundary parameters of the conjugate heat transfer radiator; adopting a B spline curve function to simulate a runner track; determining the cross-section runner by usinga Bernstein function, and providing four degrees of freedom on a two-dimensional level; using a Bernstein function to represent a rotation angle, and providing different visual angles to analyze heatdissipation performance; establishing a shape optimization model by taking the coefficient of the embedded Bernstein function as a design variable, taking the minimum average temperature of an important plane as a target function and taking space size constraints; adopting a linear approximation constraint optimization algorithm COBYLA to optimize runner distribution, and normalizing design variables to improve optimization stability. The influence of the geometric dimension on the heat dissipation performance of the conjugate heat transfer radiator is further released, the temperature distribution of an important plane is improved, and the invention has important significance for guiding the design of the conjugate heat transfer radiator of electronic equipment.

Description

technical field [0001] The invention belongs to the field of electronic equipment, and in particular relates to the design of electronic radiators in combination with parameterized flow channel cross-section and shape optimization methods, which can be used to guide the design of liquid-cooled radiators for high-power electronic equipment. Background technique [0002] Heat sinks play a vital role in maintaining the stability, reliability, and longevity of electronic equipment. Even if the theoretically designed electronic equipment fully meets the engineering requirements in terms of subjective performance, if the heat dissipation problem is not effectively solved, the design effect of the entire system will be greatly reduced. Therefore, thermal management must also be given full consideration at the beginning of the design. Compared with other thermal management methods, the conjugate heat transfer method has been widely and effectively used in engineering practice, incl...

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Problems solved by technology

As advanced technologies, shape optimization and topology optimization have significant advantages in structural design. However, topology optimization theory is not yet mature, and there is still a long way to go before effective engineering applications

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