AN ANALYTICAL AND EXPERIMENTAL-STUDY OF CLEANING WITH MOVING WATERJETS

A mathematical model of cleaning with moving waterjet is established b y considering the structure of waterjet and applying Springer's semi-e mpirical model on material erosion due to impact of water droplets. Ba sed on this model, the cleaning width as a function of travel speed, s tandoff distance, water pressure, and nozzle radius is derived. Also d erived is the relation of the critical cleaning standoff distance to t ravel speed, water pressure, and nozzle radius. The validity of the de rived relations is verified by conducting moving waterjet experiments with varied cleaning system parameters.