Experimental and Numerical Investigation of the Flow in a Centrifugal Compressor Volute

1999 ◽  
Vol 122 (1) ◽  
pp. 22-31 ◽  
Author(s):  
D. Hagelstein ◽  
K. Hillewaert ◽  
R. A. Van den Braembussche ◽  
A. Engeda ◽  
R. Keiper ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Rectangular Cross Section ◽  
Three Dimensional ◽  
Wall Friction ◽  
Detailed Knowledge ◽  
Viscous Effects ◽  
Loss Mechanism ◽  
Dissipation Term ◽  
Friction Term ◽  
Operating Points

This paper presents the experimental and numerical investigation of an outward volute of rectangular cross section. The investigation is carried out at the level of stage performance, volute performance, and detailed flow field study at selected peripheral positions for various operating points. The objective of the investigation was to gain further knowledge about the flow structure and loss mechanism in the volute. Simultaneously with the experimental investigation, a numerical simulation of the flow in the volute was carried out. A three-dimensional Euler code was used in which a wall friction term and a tuned artificial dissipation term account for viscous effects. A reasonable agreement between the experimental and numerical results is observed. As a result a good and detailed knowledge about the pressure recovery and loss mechanism in the volute is obtained. [S0889-504X(00)00301-9]

scholarly journals Experimental and Numerical Investigation of the Flow in a Centrifugal Compressor Volute

1999 ◽  
Author(s):  
D. Hagelstein ◽  
K. Hillewaert ◽  
R. A. Van den Braembussche ◽  
A. Engeda ◽  
R. Keiper ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Cross Section ◽  
Rectangular Cross Section ◽  
Wall Friction ◽  
Detailed Knowledge ◽  
Viscous Effects ◽  
Loss Mechanism ◽  
Dissipation Term ◽  
Friction Term ◽  
Operating Points

This paper presents the experimental and numerical investigation of an outward volute of rectangular cross section. The investigation is carried out at the level of - stage performance, - volute performance and - detailed flow field study at selected peripheral positions for various operating points. The objective of the investigation was to gain further knowledge about the flow structure and loss mechanism in the volute. Simultaneously with the experimental investigation, a numerical simulation of the flow in the volute was carried out. A 3D Euler-code was used in which a wall friction term and a tuned artificial dissipation term account for viscous effects. A reasonable agreement between the experimental and numerical results is observed. As a result a good and detailed knowledge about the pressure recovery and loss mechanism in the volute is obtained.

Three‐Dimensional Numerical Investigation of Pore Water Pressure and Deformation of Pumped Aquifer Systems

Ground Water ◽  
2019 ◽  
Vol 58 (2) ◽  
pp. 278-290 ◽  
Author(s):  
Yun Zhang ◽  
Xuexin Yan ◽  
Tianliang Yang ◽  
Jichun Wu ◽  
Jianzhong Wu
Keyword(s):  
Numerical Investigation ◽  
Pore Water ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Three Dimensional ◽  
Aquifer Systems

A Three-Dimensional Viscous Transonic Inverse Design Method

2000 ◽  
Author(s):  
W. T. Tiow ◽  
M. Zangeneh
Keyword(s):  
Design Method ◽  
Flow Analysis ◽  
Three Dimensional ◽  
Viscous Effects ◽  
Flow Equations ◽  
Flow Solution ◽  
Turbomachinery Blades ◽  
A Cell ◽  
Inverse Design Method ◽  
Euler Solver

The development and application of a three-dimensional inverse methodology is presented for the design of turbomachinery blades. The method is based on the mass-averaged swirl, rV~θ distribution and computes the necessary blade changes directly from the discrepancies between the target and initial distributions. The flow solution and blade modification converge simultaneously giving the final blade geometry and the corresponding steady state flow solution. The flow analysis is performed using a cell-vertex finite volume time-marching algorithm employing the multistage Runge-Kutta integrator in conjunction with accelerating techniques (local time stepping and grid sequencing). To account for viscous effects, dissipative forces are included in the Euler solver using the log-law and mixing length models. The design method can be used with any existing solver solving the same flow equations without any modifications to the blade surface wall boundary condition. Validation of the method has been carried out using a transonic annular turbine nozzle and NASA rotor 67. Finally, the method is demonstrated on the re-design of the blades.

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