scholarly journals Numerical simulation of three-dimensional wind flow patterns over a star dune

2016 ◽  
Vol 159 ◽  
pp. 1-8 ◽  
Author(s):  
Lihai Tan ◽  
Weimin Zhang ◽  
Kai Bian ◽  
Zhishan An ◽  
Ruiping Zu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Three Dimensional ◽  
Flow Patterns ◽  
Wind Flow

The Effect of Partial Admission on Multistage Radial Inflow Industrial Steam Turbine

2009 ◽  
Author(s):  
Yijin Li ◽  
Qun Zheng ◽  
Lanxin Sun
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Steam Turbine ◽  
Three Dimensional ◽  
Flow Patterns ◽  
Navier Stokes ◽  
Radial Turbine ◽  
Partial Admission ◽  
Aerodynamic Performances ◽  
Turbine Impeller

Aerodynamic performances of a partial admission multistage radial inflow turbine are investigated with numerical simulation. A three-dimensional unsteady Reynolds-averaged Navier–Stokes solver closed by Baldwin-Lomax model is applied for the computations. The flow field features of the first stages with partial admission are analyzed and discussed. Detailed flow patterns of the partial admission radial turbine impeller are presented here in this paper.

Numerical simulation of flow patterns in the forebay and suction sump of Tianshan pumping station

2014 ◽  
Vol 9 (4) ◽  
pp. 519-525
Author(s):  
Jun Li ◽  
Yongmei Cao ◽  
Chuanchang Gao
Keyword(s):  
Numerical Simulation ◽  
Yellow River ◽  
Three Dimensional ◽  
Flow Simulation ◽  
Flow Patterns ◽  
The Yellow River ◽  
Technical Improvement ◽  
Pumping Station ◽  
Turbulence Flow ◽  
Simulation Results

Tianshan Pumping Station takes water from the Yellow River. A three-dimensional (3D) mathematical model of turbulence flow patterns in the forebay and suction sump was developed and a 3D turbulent flow simulation technique applied to numerical calculation of the flow pattern characteristics in both the original and rebuilt forebays of the pumping station. The numerical simulation results were analyzed and contrasted. The results showed that, with technical improvement, surface backflow was avoided, and bottom velocity in the forebay was increased while bottom velocity in the suction sump was unchanged. Because of this, there was no sediment deposition in the bottom of the forebay, and flow velocities in the forebay and suction sump were more evenly distributed.

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