Crack propagation simulation method, model, device and equipment and temporary plugging ball optimization method

The invention provides a fracture propagation simulation method, a fracture propagation model, a fracture propagation device, fracture propagation equipment and a temporary plugging ball optimization method. The establishment method of the fracture propagation model comprises the following steps: establishing a rock fracture deformation calculation equation; constructing a flow calculation equation of the fracturing fluid and the propping agent in the crack; constructing a mass conservation equation of the fracturing fluid and the propping agent; establishing a crack height calculation equation; judging whether a temporary blocking ball is put into the current time unit or not; constructing a fracturing fluid flow distribution calculation equation; establishing a crack propagation calculation equation; and establishing a fracturing crack propagation model by a coupling equation. According to the simulation method, the fracturing crack propagation model is adopted for simulating the shale gas temporary pluggin