Abstract: Currently, real fire monitors are used in almost all experiments for jet track of fire monitors. These experiments require large areas, bulky equipment, and complicated operations leading to high cost. We propose simulation experiments for the jet track, and derive the similar proportion based on the similarity theory. The method has the advantages of small space requirement, low cost, and data collection capability. The method has practical value as it can provide experimental data for studying properties of the fire engine and used for engineering design. Furthermore, the analysis model is a theoretical basis of the fire monitor database.

Key words: similarity theory, simulation experiment, fire monitor