The scope includes all aspects of hydraulic design, 3D-flow phenomena and partload operation, cavitation, numerical flow calculations, hydraulic forces, pressure pulsations, noise, pump vibrations (notably bearing housing vibration diagnostics and remedies), pipe vibrations, pump characteristics and pump ...
The scope includes all aspects of hydraulic design, 3D-flow phenomena and partload operation, cavitation, numerical flow calculations, hydraulic forces, pressure pulsations, noise, pump vibrations (notably bearing housing vibrations diagnostics and remedies), pipe vibrations, pump characteristics and pump ...
However, it could not change through the calculations. match the experimental head one-to-one as reported by the Figure 2 shows the six cross-sectional planes that cut in ´ work done by Gonzalez et al. [21], but it has similar accuracy according to the various locations in volute ...
The motor used to power a centrifugal pump needs to be able to produce enough torque to start the pump and bring it to an optimal operating speed. If a motor lacks enough torque to operate a pump, the pump may not start or may only operate at a reduced speed. Thecentrifugal pump suppl...
]49 1 3 , , ftPSHrPSH H V Non-equi l ibrium theory,bubble dynamic(CFD)calculations, involving time-dependent two-phase flow calculationsime dependent two phase flow calculations 16Part 2 Cavitation prediction(cont )art 2–Cavitation prediction(cont.) ...
The investigations were made on the reduce-scaled model of a high head pump-turbine design. Numerical calculations were performed using commercial code with implemented barotropic cavitation model. Some of the numerical results were compared to the experimental data. Flow analysis was stressed on the ...
The results show that the wet natural frequencies are lower than the dry ones and that the wet natural frequencies obtained from analytical calculations are consistently higher than those obtained from three-dimensional simulation results. The optimized mathematical model significantly improves the accuracy...
To identify the flow phenomena, preliminary CFD calculations were performed. The obtained distribution of pressure and velocity fields on specific control panels were compared.doi:10.1016/j.ijmecsci.2017.01.039Skrzypacz, JanuszBieganowski, Marcin...
In the drawing a centrifugal pump impeller 1 has cover discs 2 and 3. The vane 4 is formed with a hollow 5 and a slot 6. The vane 4 is thus formed with a hollow 5 the size of which is adapted according to calculations. The hollow has a connection to the surroundings via the slot...
according to my calculations a pump 10 so constructed can be turned at 5,000 rpm by a 5 horse power motor and at that rate of operation will pump theoretically as much as 5,600 gallons of water per minute, or taking into consideration resistance factors not yet determined through experimenta...