Method for correcting convective heat transfer coefficient of variable physical property transformer oil

The invention provides a method for correcting a convective heat transfer coefficient of variable-physical-property transformer oil, which is used for correcting an existing convective heat transfer coefficient calculation formula by considering the characteristic that the dynamic viscosity of the transformer oil dramatically changes along with the temperature. The method comprises the specific implementation steps that a physical model of the variable physical property transformer oil skipping over the solid surface is established in FLUENT; setting different temperature boundary conditions by adopting a parameterized simulation method; calculating temperature field distribution in the boundary layer by combining a finite element method and a finite volume method; the convective heat transfer coefficient of the variable physical property transformer oil under different temperature working conditions is calculated by extracting heat flow distribution along the way of the solid surface; and introducing the tem