Version 1
: Received: 20 December 2023 / Approved: 20 December 2023 / Online: 20 December 2023 (12:01:37 CET)
How to cite:
MĂLĂEL, I.; STRĂTILĂ, S. High-precision numerical investigation of a VAWT starting process. Preprints2023, 2023121554. https://doi.org/10.20944/preprints202312.1554.v1
MĂLĂEL, I.; STRĂTILĂ, S. High-precision numerical investigation of a VAWT starting process. Preprints 2023, 2023121554. https://doi.org/10.20944/preprints202312.1554.v1
MĂLĂEL, I.; STRĂTILĂ, S. High-precision numerical investigation of a VAWT starting process. Preprints2023, 2023121554. https://doi.org/10.20944/preprints202312.1554.v1
APA Style
MĂLĂEL, I., & STRĂTILĂ, S. (2023). High-precision numerical investigation of a VAWT starting process. Preprints. https://doi.org/10.20944/preprints202312.1554.v1
Chicago/Turabian Style
MĂLĂEL, I. and Sergiu STRĂTILĂ. 2023 "High-precision numerical investigation of a VAWT starting process" Preprints. https://doi.org/10.20944/preprints202312.1554.v1
Abstract
For both conventional and renewable energy conversion processes, computational fluid dynamics (CFD) has been used to address more energy-related challenges in recent decades. Using CFD to investigate vertical-axis wind turbines has become more common in recent years. The main goals of this application have been to more accurately predict the turbine's performance and to comprehend the complicated nature of the complex turbulent flow. The Vertical Axis Wind Turbine (VAWT) simulation for energy-generating applications has several intricate components. One of them is being aware of the chaotic flow that occurs during the first stages of the starting process, which influences overall effectiveness. In this article, the performance of the wind turbine was increased by using a passive flow control approach. The numerical research was carried out using Large Eddy Simulation for four alternative tip speed ratios in both cases, the classic and the optimized, equipped with a vortex trap on the exterior of the blades. The power and torque coefficient variations, as well as the velocity magnitude contours, show that the starting process may begin with a significant improvement in efficiency when flow control is used.
Keywords
vertical axis wind turbine; large eddy simulation; tip speed ratio; vorticity magnitude; torque coefficient; vortex trap
Subject
Engineering, Energy and Fuel Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
