Based on the indoor experiments, An optimized program is determined by analyzing the radial distributio of pressure along the different rotary plates and comparing with the energy consumption in the circulation system of pressurized clean water. The mechanism and possibility of draining sludge in lakes and reservoirs through friction work exerted of water in the rotary fluid machine are studied, Meanwhile, in order to find the possible way for improving the efficiency of draining sand, the representations of pressure distribution and energy cosnumption are determined by theoretical analysis and experimental tests.
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