Method for rapidly predicting temperature of regenerative cooling channel of high-speed ramjet

The invention discloses a high-speed ramjet regenerative cooling channel temperature rapid prediction method, which aims at a rectangular regenerative cooling channel structure, performs appropriate simplified partitioning on a characteristic cross section, simplifies a three-dimensional calculation problem into a problem of estimating convective heat transfer intensity and a one-dimensional solid heat conduction problem, and can predict the temperature of a regenerative cooling channel of a high-speed ramjet according to different blocks. Mathematical description is performed by using a Fourier heat conduction law and a Newton cooling formula, programming solution is performed based on MATLAB, overall temperature distribution of a characteristic section is obtained by using a temperature interpolation function, and cyclic calculation solution of the temperature of the whole channel is realized by segmenting the axial length. The method for rapidly predicting the temperature of the regenerative cooling channe