The invention relates to the technical field of water-cooled resistors, in particular to a fluid-
solid coupling heat transfer-based
simulation method for the heat dissipation effect of a water-cooled aluminum shell
resistor, which comprises the following steps of: firstly, constructing an initial three-dimensional model of the water-cooled aluminum shell
resistor according to
engineering technical requirements, and simplifying the model based on surface area equivalence and
mass equivalence principles; then in COMSOL
simulation software, establishing a fluid-structure interaction
heat transfer multi-
physics field model, setting material parameters, initial conditions and boundary conditions, then performing
simulation calculation, and verifying the accuracy of a simulation result through an experiment; and finally, establishing a parameter correlation model by taking the resistance core quality as an optimization target, determining the minimum resistance core quality, and reversely guiding the
design improvement of an original model. According to the method, traditional experiments are replaced by digital simulation, the design cost is reduced, the research and
development period is shortened, the optimal balance between the heat dissipation performance and the material cost can be accurately achieved, and the method can be widely applied to design optimization of various fluid-structure interaction heat dissipation products.