Hydrogen pipeline chemical explosion shock wave intensity prediction method

The invention discloses a hydrogen pipeline chemical explosion shock wave intensity prediction method, which comprises the following steps: firstly, ignoring the existence of a pipeline structure, modeling cylindrical mixed gas inside a hydrogen pipeline and ambient air outside the hydrogen pipeline, and simulating the explosion of the mixed gas in the pipeline in an open space; extracting peak overpressure and impulse of the target position according to a simulation result; calculating the dimensionless distance between the pipeline dimensionless explosion pressure and the target position; according to the pipeline non-dimensional explosion pressure and the target non-dimensional distance, a proper scaling coefficient is selected, the peak overpressure and impulse of shock waves at the target position are scaled, and the peak overpressure and impulse of the shock waves formed at the target position in the crevasse injection direction after pipeline chemical explosion are obtained. According to the method, on