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Numerical simulation of flow field inside abrasive water jet nozzle on steady, turbulence, two-phase flow conditions was carried out based on FLUENT. The main geometric parameters of abrasive water jet nozzle were analyzed. The results show that the smaller the contraction angle a of the focusing tube, the better flow field inside abrasive water jet nozzle is. Also smaller contraction angle avoids...
The curved diffusers are used in fluid flow systems to decelerate the fluid flow and turn the fluid simultaneously due to space restrictions and design compatibility. The main problem in achieving a high pressure recovery is the flow separation which results in non-uniform flow distribution and excessive losses. The present work is aimed to reveal the fluid flow characteristics in the Y-shaped diffusing...
In this paper, by the review of abrasive flow machining (AFM) and the principle of traditional process technology, a new polishing process technology about polishing internal surface of bend pipe, which is simpler, is developed. The turbine blade, which is a component of polishing ball, is designed and simulated by ANSYS-CFX (Blade Geometry, Advanced CFD and simulation). The flow of grinding media...
The authors present the comparison of the results of the evolution laminar movement calculation from computational fluid dynamic (CFD) methods and analytical equation for the duct which is composed of two parallel plates. For modelling and visualisation of the fluid velocity distribution, the CFDesign software was used.
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