5. The distribution of pressure in double volute is symmetry 180°, there is refluence on the tongue, there are also refluence and strike in the channel, the flux is different ,the degree of them are different.
To compare the influences of FSI on the pressure fields,the size of the flow passage is designated to 1.5 m×0.5 m×0.2 m as a working example. The DQ mesh sizes of 25×25×25 and 29×29×29 were used for Reynolds numbers of 7*#000 and 10*#000,with and without FSI,respectively.
Because the reliability of predicting pressure fluctuations in prototype turbine is low by model test, and the result of CFD simulation based on the single flow passage or single flow component in hydraulic turbine, without considering the interaction of the components, shows much difference.
Plastics flow analysis function of MPI/Flow and analysis step are introduced in detail, and analyzed the istance with MPI/Flow software, the CAE technology playing the prominent role to the optimal position and optimal number of gate, aspect of flow channel system are demonstrated.
Aliasing error bounds are derived for one- and two-channel sampling series analogous to the Whittaker-Kotel'nikov-Shannon series, and for the multi-band sampling series, and a "derivative" extension of it, due to Dodson, Beaty, et al.
Aliasing in the one-channel case is shown to arise from a transformation with similarities to a projection.
An Estimation of the Truncation Error for the Two-Channel Sampling Formulas
Guanidine-type compounds that reached clinical status include amongst others the potassium channel opener, pinacidil and the histamine H2-receptor antagonists (e.g.
The tetra-n-butylammonium cations were stacked to give two columns within each channel with cross-sectional size of about 2.30 nm × 0.93 nm.
The flow at the exit from the runner blade of a centrifugal fan with forward curved blades (a sirocco fan) sometimes separates and becomes unstable.
We consider the complex problem of numerically simulating a flow in the fluid passage of a hydraulic turbine that consists of a spiral casing, a cascade of stay vanes and guide apparatus vanes, a runner, and a draft tube.
Double gates mold induce higher temperature due to longer runner length.
One must remember that the first marathon runner, Phidippides, collapsed and died at the finish of his race.
Osteoporosis in a female cross-country runner with femoral neck stress fracture
Using the real Francis turbine as an example, we study the applicability of the standard k - ε turbulence model for predicting hydrodynamic losses in its flow passage.
Effect of variable ambient temperature on fin efficiency in a two-dimensional flow passage
The MHE consists of a narrow planar flow passage between flat parallel plates with small cylindrical pin fins spanning these walls.
The debris flow valley may be divided into three sections according to erosion and deposition: the section of vertical erosion, the section of lateral erosion-flow passage, and the section of lateral erosion-deposition.
Acoustic waves are high frequency and generally accompany flow passage vibrations.
The flow investigated here appears as a result of the ejecting action of a turbulent jet in conditions when a jet, after emerging from a cylindrical nozzle, impinges into a gas flow channel.
The experimental results of investigating the effect of the finite depth of a linearly stratified flow channel on turbulence formation associated with the horizontal motion of a cylinder are presented.
The effect of the inclination and flow channel geometry of the test section on the interfacial wave was also investigated.
the height of the diffuser was equal to the height of the impeller flow channel plus the axial running clearance.
In this study, the effect of the flow channel geometry and reinforced fiber length on Young's modulus in the rib part was investigated.