CFD Analysis of Tidal Current Turbine Performance with Different Boundary Conditions

The outcome of Numerical methods such as Computational Fluid Dynamics (CFD) based on Reynolds Averaged Navier Stokes (RANS) is dependent upon selection of several critical parameters. The effect of boundary conditions, boundary flow modelling and turbulence numerics has been quantified in this study...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2020-11, Vol.581 (1), p.12010
Main Authors: Badshah, Saeed, Badshah, Mujahid, Hafeez, Noman, Jan, Sakhi, Ur Rehman, Zia
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The outcome of Numerical methods such as Computational Fluid Dynamics (CFD) based on Reynolds Averaged Navier Stokes (RANS) is dependent upon selection of several critical parameters. The effect of boundary conditions, boundary flow modelling and turbulence numerics has been quantified in this study. Steady state RANS CFD simulation are performed by utilizing a Rotating Frame of Reference (RFR) model along with a Shear Stress Transport (SST) closure model. The simulated performance results were compared with experimental data over Tip Speed Ratios (TSR) from 2-9. Four different sets of boundary conditions that can possibly represent an experimental water channel were evaluated. The variation of boundary condition resulted in the variation of prediction error at different TSR's. Critical variations were observed at the extreme operating conditions of minimum and maximum TSR's. However, the CP prediction error at the optimum TSR was not much affected by the variation of boundary conditions.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/581/1/012010