Computation of Electrical Conditions Inside a Wire-Plate Electrostatic Precipitator Using an Unstructured Finite Volume Method

2008 ◽  
Author(s):  
Zhengwei Long ◽  
Qiang Yao ◽  
Qiang Song ◽  
Shuiqing Li ◽  
A. Tilmatine
Keyword(s):  
Finite Volume Method ◽  
Finite Volume ◽  
Electrostatic Precipitator ◽  
Volume Method ◽  
Unstructured Finite Volume Method

Application of a Riemann Solver Unstructured Finite Volume Method to Combustion Instabilities

2015 ◽  
Vol 31 (3) ◽  
pp. 937-950 ◽  
Author(s):  
Perry L. Johnson ◽  
Jared M. Pent ◽  
Hrvoje Jasak ◽  
J. Enrique Portillo
Keyword(s):  
Finite Volume Method ◽  
Finite Volume ◽  
Riemann Solver ◽  
Combustion Instabilities ◽  
Volume Method ◽  
Unstructured Finite Volume Method

scholarly journals Navier-Stokes Simulation of the MIT Flapping Foil Experiment Using an Unstructured Finite Volume Method

1999 ◽  
Author(s):  
Dong Jin Kang ◽  
Sang Soo Bae ◽  
Jae Won Kim
Keyword(s):  
Boundary Layer ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Local Minimum ◽  
Free Stream ◽  
Navier Stokes ◽  
Unsteady Boundary Layer ◽  
Flapping Foil ◽  
Volume Method ◽  
Unstructured Finite Volume Method

A Navier-Stokes simulation of the MIT flapping foil experiment is presented. The MIT experiment was designed to provide a good quality database for unsteady boundary layer flows. The unsteady boundary layer around a hydrofoil was generated by flapping two airfoils upstream of the hydrofoil. Present Navier-Stokes simulation is carried out on the entire experimental domain, including the flapping airfoils as well as the downstream fixed hydrofoil. Present Navier-Stokes code uses an unstructured finite volume method based on the SIMPLE algorithm. It uses QUICK scheme for the convective terms and the second order Euler backward differencing for time derivatives to keep second order accuracy spatially and temporally. All other spatial derivatives are approximated by using central difference scheme. All comparisons of present time averaged and unsteady solutions with the corresponding experimental data are satisfactory: all unsteady solutions are compared in terms of time mean and first harmonic. The first harmonic of the velocity shows a peak inside the boundary layer along the surfaces of the hydrofoil and has a local minimum near the edge of the boundary layer. The local minimum becomes manifest as the boundary layer grows. The unsteadiness in the free stream is transferred inside the boundary layer when an unsteady vortex impinges on the surface. The entrained unsteadiness travels with a local velocity slower than that in the free stream. This causes phase lag of the first harmonic between the free stream and the boundary layer and local minimum of the first harmonic near the edge of the boundary layer.

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