![]() ![]() In this paper, three-dimensional numerical simulations were conducted to observe the flow patterns and to measure valve flow coefficient and flow fluctuations when stop valve with different flow rate and uniform incoming velocity were used in a valve system. The flow system with stop valves is complex structure and has non-linear characteristics, because the construction and the hydraulic phenomena are associated of stop valves. This paper presents the researches of the authors in modeling and simulation of the stop valves. ![]() Due to the fast progress of the flow simulation and numerical technique, it becomes possible to observe the flows inside a valve and to estimate the performance of a valve. Thus it's more and more essential to know the flow characteristic inside the valve. Stop valves are commonly used as fluid flow control equipments in many engineering applications. ![]()
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