Abstract: Model experiment is an effective method to investigate the working process of electromagnetic coil launcher (EMCL). The model experiment results are used for prototype study of EMCL after the scaling factor relations of the physical parameters of model and prototype are mastered. Based on mathematical model of EMCL and similarity theory, the requirements for designing the model of EMCL are derived. The scaling model is researched by simulation. The experiment verification of the single-stage EMCL is conducted. The simulation of EMCL and experimental results show that the scaling factor relations of physical parameters are expressed as functions of the length scale factor. The working characteristics of EMCL sub-scale model can be deduced if the structure parameters of EMCL prototype and the length scale factors are given, and vice versa. The research results lay the theoretic foundation for model experiment.

Key words: ordnance science and technology, electromagnetic coil launcher, scale model, length scale factor, model experiment