Results 221 to 230 of about 105,111 (265)
Some of the next articles are maybe not open access.
Cavitation 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
openaire +1 more source
Hydraulic Performance of a Mixed-Flow Pump: Unsteady Inviscid Computations and Loss Models
Journal of Fluids Engineering, 2001The hydraulic performance of an industrial mixed-flow pump is analyzed using a three-dimensional potential flow model to compute the unsteady flow through the entire pump configuration. Subsequently, several additional models that use the potential flow results are employed to assess the losses.
van Esch, B.P.M., Kruyt, N.P.
openaire +2 more sources
Scale Effects in a Mixed Flow Pump: Part 1
Proceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering, 1986The variation of efficiency and losses over a range of Reynolds numbers has been measured for a mixed flow pump of specific speed 118 r/min for a number of points covering its operating range. The losses have been separated into those of the impeller and volute.
V Ramarajan, S Soundranayagam
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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 ...
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source