CFD Simulation of Sohar Ambient Temperature Variation Effects on the Performance of a Wind Tunnel with a Fixed-Blade Wind Accelerator

Abstract

Ambient temperature plays an important role in influencing the aerodynamic behaviour and energy efficiency of wind energy systems, particularly valid in arid and semi-arid regions such as Sohar. The present study shows a computational investigation into the effects of temperature variations on the performance of a wind tunnel integrated with a fixed-blade wind accelerator, using climatical conditions of Sohar. The Computational Fluid Dynamics (CFD) simulations were performed using ANSYS Software, through a temperature variety from 15°C to 50°C in 5°C increments. The aerodynamic response was assessed through the velocity distribution, pressure profile, and turbulence intensity, at six distinct points within the tunnel. The results of this novel study indicate that increasing ambient temperature leads to a decrease in the pressure profile and then an increase in the wind velocity. The turbulence intensity rises significantly due to a reduced air density and changed flow stability. These aerodynamic properties degrade the efficiency of the wind accelerator. They impact the downstream turbine performance. The findings of this research highlight the importance of incorporating temperature sensitivity into the aerodynamic design of wind energy systems in hot climate regions. This research gives a great insight into enhancing the resilience and efficiency of wind power infrastructure under varying environmental conditions.