Dimensional analysis velocity of fluid droplet size cd) from spray nozzle depends on the diameter of nozzle CD), spray CU). Property of the fluid is density (P>, viscosity cus, and surface tension (Y). Find pi term c using the MLT system and D, U, and S are repeating variables ). if D: 2 cm and U: 5m/s in the prototype and in the model case the same fluid, find the velocity of the spray in model.