Open AccessCFD Analysis of Tidal Current Turbine Performance with Different Boundary Conditions
Author(s) -
Saeed Badshah,
Mujahid Badshah,
Noman Hafeez,
Sakhi Jan,
Zia Ur Rehman
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/581/1/012010
Subject(s) - reynolds averaged navier–stokes equations , computational fluid dynamics , mechanics , turbulence , turbine , boundary (topology) , boundary value problem , reynolds stress , physics , mathematics , thermodynamics , mathematical analysis
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 C P prediction error at the optimum TSR was not much affected by the variation of boundary conditions.