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Rotational Stall in a Mixed-flow Pump
The numerical results used to describe the special flow features/characteristics of the mixed-flow pump in this chapter were obtained by employing the computational methodology described in Chapter 3 which includes the pump model, mesh generation, turbulence models and their near wall treatment, and the boundary conditions.Wei Li +4 more
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Non-Newtonian flow in a large mixed-flow pump
International Journal of Computer Applications in Technology, 2000This paper deals with a 3D time-marching incompressible Navier-Stokes solver using the pseudo-compressibility technique to study the non-Newtonian flow field through mixed-flow water pump impeller. The applicability of the original code has been validated by comparison with Goto's experimental and computational results.
E.Y.K. Ng, W.D. Zhou
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Scale Effects in a Mixed Flow Pump: Part 2
Proceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering, 1986The measured variation of losses in a mixed flow pump have been analysed to determine the fraction V of the losses that are dependent on Reynolds number and the exponent n that characterizes that dependence. The variation of the Reynolds number dependent fraction has been obtained for different operating points on the pump characteristic.
S Soundranayagam, V Ramarajan
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Visual Cavitation Studies of Mixed Flow Pump Impellers
Journal of Basic Engineering, 1963Three mixed flow impellers representing a wide range of design parameters were tested in a closed water loop to obtain correlations of the high-speed photographic records of the cavitation formations with various performance parameters. It was found that cavitation existed for all impellers at much higher values of NPSH than those associated with a ...
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Multi-Objective Design Optimization of a Mixed-Flow Pump
Volume 1: Symposia, Parts A, B and C, 2009In most cases of high specific speed mixed-flow pump applications, it is necessary to satisfy more than one performance characteristic such as deign point efficiency, shut-off power/head and non-stall characteristic (no positive slope in flow-head curve). However, it is known that these performance characteristics are in relation of trade-offs.
Yumiko Takayama, Hiroyoshi Watanabe
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Tip Leakage Flow In a Mixed-flow Pump
The numerical results used to describe the special flow features/characteristics of the mixed-flow pump in this chapter were obtained by employing the computational methodology described in Chapter 3 which includes the pump model, mesh generation, turbulence models and their near wall treatment, and the boundary conditions.Wei Li +4 more
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Aerodynamic Redesign of a Mixed-Flow Pump
2003The aerodynamic redesign of a mixed-flow pump stage was carried out by means of CFD analyses. The goal of this process was to improve the stage efficiency and suction capability over the whole working range. The original configuration was first analyzed and critical elements affecting its performance were identified.
D. Bonaiuti +3 more
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Formed Suction Inlet Design for Mixed Flow Pump Applications
World Environmental and Water Resources Congress 2010, 2010The use of formed suction inlets (FSI) on large vertical pumps has been common in the flood control field for many years. The US Army Corps of Engineers Type 10 inlet is a common example that has been used extensively throughout the south eastern United States for flood control as well as on numerous projects as part of the broader Everglades ...
David Werth, Yifan Zheng
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Three-Dimensional Computational Analysis of Mixed Flow Pumps
2000Conventional time-marching techniques are currently used in industry for three-dimensional compressible flow analysis in different fields (turbomachinery, propulsion, etc...). These techniques have shown strong stability and good accuracy characteristics in many applications, but they are not directly applicable to incompressible flows.
CRAVERO C, MARINI, Martino, SATTA A.
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