These calculated results show that the reliability of forming surface regime can be increased, the probability of forming unfavourable flow regime can be decreased by adjusting the design values and operation modes in order to achieve the aim of optimum design and operation.
The experimental results indicated: There exist four basic flow regimes for all alternatives, the arrangement of an outlet structure and its boundary condition influenced directly on the flow regime;
On the basis of experiment results, this paper summarized the principles on which the outlet structures layout would bring a good flow regime and silting pattern, and believed the alternative with close arrangement of outlet structures in line would be the optimal one of all alternatives.
By means of onedimensional water level and twodimensional flow state calculation,a comparative analysis of the water level and the flow state change at the river section before and after the Guijiang River Third Bridge built is made,the influence on flood control works in Wuzhou City by the bridge and its countermeasure is expounded.
The main work of the paper is the three-dimensional turbulence calculation in the hydraulic turbine application, setting up the three-dimensional turbulence model of the hydraulic turbine draft tube theoretically, and carrying on three-dimensional emulation calculation to it. By drawing it through three-dimensional simulation emulation, It can offer the good water flow state to the hydraulic turbine draft tube, cut down water head lose, improve hydraulic turbine efficiency, and reduce cost of draft tube model test.
According to the hydraulic property of overflow weirs under steady flow,the flow patterns of overflow weirs were classified into free overfall and submerged overfall,and numerical models for unsteady flow were established to simulate the two flow patterns respectively.
The minimal spouted velocity was obtained by the BEMDEM-CFD simulation and the variation of the flow pattern in the bed with different superficial gas velocity was studied.
In this paper, the main factors impacting the plug flow pattern of a clearwell were investigated by integrating pilot-scale, full-scale clearwell tracer testing and computational fluid dynamics (CFD) simulation.
For a plate cascade, the flow pattern is complicated by the aerodynamic interference between the plates, which may depend significantly on their shape.
The vortices, concentrated in a pair of free vortex cores, interact with the boundary layer, causing a complex flow pattern on the surface of the model in question.
The stability of the laminar flow regime in the boundary layer developed on a wall is increased considerably by the relatively slight extraction of fluid from the wall [1-4].
The friction at the interface may have either a stabilizing or destabilizing effect on such a flow regime with respect to small disturbances of the interface.
The flow regime with an annular elliptical region between the shock wave and a ducted body is realized when the ratio of the duct diameter to the characteristic body thickness is sufficiently large and the backpressure is sufficiently low.
Considerable changes in the structure of carbon and the formation of nanotubes at 700-800°C are related to the appearance of a viscous-flow state of metal-carbon particles.
The effects of the change of the buoyancy and Marangoni force on the flow state are analyzed by changing the temperature difference between the crystal and the crucible walls.
One of the basic questions in the study of advanced cavitation in water tunnels of the closed-circuit type is the establishment of the correspondence between the flow patterns observed in the channel and in an unbounded stream.
By means of a linear analysis flow patterns corresponding to various flow interaction regimes and edge geometries are constructed and a law of similarity is formulated.
The problem of flow at zero angle of attack past blunt bodies possessing two planes of symmetry is investigated numerically for flow patterns varying from smeared layer structure to almost ideal flow (Re∞=50-105).
The results obtained for the models with VS and VF are compared over a broad range of values of α, not only with respect to the integral characteristics, as in [12], but also with respect to the flow patterns.
流态
flow pattern 
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