Airflow-dust gas-solid two-phase flow numerical simulation method considering environmental humidity factor

The invention belongs to the technical field of coal mine underground fluid mechanics, and discloses an air flow-dust gas-solid two-phase flow numerical simulation method considering an environmental humidity factor, and the method comprises the steps: building a fully-mechanized face physical model according to a geological survey result; taking air flow and water vapor in air as a continuous phase, and describing fluid motion of the fully mechanized coal mining face by utilizing an Euler method; carrying out turbulence simulation by adopting a Reynolds time-averaging equation, solving by utilizing a k-epsilon equation, and expressing a transient pulsating quantity in the time-averaging equation; and establishing a mathematical model by using a component transport equation in the component transport model and an Euler-Lagrange equation in the dispersed phase model, and meanwhile, expressing the critical offset of particles in the collision process by using an O'Rourke formula due to the influence of a humidi