The invention relates to the technical field of thermal management of power devices, and discloses a heat dissipation method and
system based on a Tesla valve, and the method comprises the steps: providing a heat dissipation
system, pumping cooling liquid into a heat exchange
assembly through a liquid supply structure, obtaining the temperature of the cooling liquid in an initial circulation state, and cooling the cooling liquid in the initial circulation state; real-time temperature values of multiple points of the heat exchange
assembly are obtained respectively, whether the temperature variance is larger than a preset target threshold value or not is judged, if yes, the volume of the wing-shaped flow
choking area is reduced, and if not, the volume of the wing-shaped flow
choking area is increased; under the condition that the cooling requirement is high, the volume of the wing-shaped flow
choking area is adjusted to be reduced, cooling liquid can rapidly flow back to the liquid supply structure to be replaced, under the condition that the cooling requirement is low, the volume of the wing-shaped flow choking area is adjusted to be increased, liquid flow circulates between the heat exchange
assembly and the adjustable Tesla valve in an accelerated mode, the heat dissipation uniformity is optimized, and the heat dissipation efficiency is improved. And the effect of uniform heat dissipation can be achieved under different load conditions and under the condition that the cooling requirement is greatly changed.