Design method for improving heat dissipation efficiency of liquid cooling channel based on fluid modification

The invention discloses a fluid modification-based design method for improving the heat dissipation efficiency of a liquid cooling channel, and the method comprises the following steps: firstly, building a pipeline geometric model, and enabling the geometric parameters of a pipeline to at least comprise the shape size, the length size and the pipeline material parameter of each position of the pipeline, and the positions and the number of outlets and inlets; determining an evaluation index of heat dissipation of the pipeline; secondly, a viscoelastic fluid mechanics model, a viscous fluid mechanics model and a thermodynamic model are established, the viscoelastic fluid mechanics model and the viscous fluid mechanics model are coupled with the thermodynamic model to solve pressure, the viscous fluid mechanics model serves as a reference, and the drag reduction rate is defined according to the inlet and outlet pressure difference of a viscoelastic fluid and a viscous fluid; and adjusting the characteristic para