A parameter selecting method of Multiple Vortex Ring Microburst Model(MVRMM) based on NPSO (Nested Particle Swarm Optimization) is propesed
which can select the parameters of MVRMM by any proportion between maximal horizontal velocity and maximal vertical velocity.The nested particle swarm structure is designed which contained parent swarm and subswarms.Find the maximal horizontal and vertical velocity with subswarms
and find the optimal parameters with parent swarm.Calculate several parameters of MVRMM by this method
which the proportion between maximal horizontal velocity and maximal vertical velocity is between 0.3 to 0.7.And the error between the factual proportion and the setting proportion is within 10