Pneumatic flow field testing method and device

The invention relates to a pneumatic flow field testing method and device, and belongs to the technical field of pneumatic flow field testing. A disturbance source is started, the operation condition of the disturbance source is set, laser is transmitted to a wavefront sensor through a disturbed pneumatic flow field, a laser spot dot matrix is obtained, laser wavefront corresponding to the operation condition is reconstructed based on the laser spot dot matrix, and the pneumatic flow field is tested. All operation conditions of the disturbance source are changed and traversed, based on the laser wavefront, a time change index and a space change index of the laser wavefront are obtained through calculation, the time change index and the space change index serve as transient distribution characteristics and space-time distribution characteristics of the pneumatic flow field respectively, and pneumatic flow field testing is completed. According to the method, the laser spot dot matrix is obtained and the laser w