[PDF] Top 20 A numerical flow simulation of a mixed flow pump

... a mixed-flow pump (non-dimensional specific velocity of ...design flow-rate and for off-design ...overall pump head agrees adequately with the measurements, the prediction of the ... See full document

... redox flow cells carbon felts on both half-cells showed improved performance in compare to other cell ...electrolyte flow rate trajectories as functions of time for a vanadium redox flow ...the ... See full document

... and numerical simulations forms a baseline of method and analysis, from which design development can be undertaken to find the optimal orientation of nozzles for maximum ...the flow characteristics are ... See full document

... reliable pump for this highly demanding operation, the behavior of the flow in the entire pump has to be predicted by a reliable computational method ....The numerical simulation can ... See full document

... any flow, by changing total pressure of pump inlet, we can get NPSH-H curve ...in pump industry, the point at which head decrease 3% is regarded as the net positive suction head required ...the ... See full document

... centrifugal pump are considered as the main area of this ...a pump is nothing but the mechanical power transmitted to it by the motor shaft, while fluid power is the energy per second carried in the fluid ... See full document

... a mixed Eulerian-Lagrangian scheme, Smith and Stansby 18] simulated the impulsively started ow around a circular ...The numerical results are compared with analytical so- lutions for shorter times and with ... See full document

... the flow through an impeller (backward curved) of a centrifugal ...of flow through the impeller at different flow coefficients. The flow pattern observed within the impeller passage is complex ... See full document

... gas flow through pipes is commonly used in heating and cooling applications and fluid distribution ...during flow through ...fluid flow, it is convenient to work with an average velocity ... See full document

... the mixed flow ...mass flow rate, significantly depends on the cross-sectional ...conducted numerical simulations to understand the effect of the tongue geometrical parameter on the full ... See full document

... In this work, we investigate flow with evaporation in open triangular channel with a slight incline. These models process either in a groove or in an individual channel. The liquid is driven only by internal ... See full document

... mass flow rate operating conditions. The highest levels of local flow blockage were found at the rotor tip and stator hub when the Peak Pressure Ratio (PPR) is reached which suggested that compressor stall ... See full document

... CFD has proved to be a very useful tool in the analysis of such turbomachinery, both in design and performance prediction. Much research has been carried out in this field. Croba & Kueny, (1996) give a list of ... See full document

... of pump weight, manufacturing and application of new environment-friendly ...The mixed-flow pumps typically suffer from a very high level of noise and vibrations at suboptimal flow ...the ... See full document

... the pump for numerical simulation of the present study and experimental data obtained from the real ...real pump in the power plant and its experimental performance ...the numerical ... See full document

... for simulation and analysis. 3-D numerical CFD tool is used for simulation of the flow field characteristics inside the turbo ...CFD simulation makes it possible to visualize the ... See full document

... increased flow area thereby offering pressure recovery and efficiency at a lower order over a wider flow ...“jet-wake” flow pattern and gave the theory for discharge mixing ...with flow ... See full document

... initial condition for the local problem (8),(9). We seek the boundary state q Γ i j = q(0, t). This problem is not uniquely solvable and it must be further specified with some chosen complementary conditions, see [3]. ... See full document

... Flow simulation was performed using the ANSYS/FLUENT v. 13 commercial CFD code. The considered flow was single-phase, compressible and turbulent for all solved cases. Based on the results of previous ... See full document

... The computation boundary conditions for the vorticity in (36) can be derived from the stream- function equation. The process is similar to that in [6]. Equations (35)–(37) are thus subject to Dirichlet boundary ... See full document