Design method of gas-liquid mixer based on LES-PBM model

The invention discloses a design method of a gas-liquid mixer based on an LES-PBM model, which comprises an evaluation method for detecting the mixing effect of the gas-liquid mixer and comprises the following steps of: performing three-dimensional modeling on a model mixer by applying modeling software; performing three-dimensional grid division on the established model by utilizing grid division software; importing the grids into ANSYS Fluent, selecting an LES-PBM model to carry out calculation and solution, setting boundary conditions, and carrying out calculation and solution ; and importing a result into post-processing software, carrying out image processing on the obtained data, and evaluating a gas-liquid mixing effect by using a result obtained by processing so as to select an optimal improvement scheme of the mixer. The method has the advantages that the method can be completed only by using a drawing and a computer at the initial stage of mixer improvement, internal flow of the model mixer can be d