Open Access

ARTICLE

Study on the Relationship between Structural Aspects and Aerodynamic Characteristics of Archimedes Spiral Wind Turbines

Yuanjun Dai^1,2,3,*, Zetao Deng¹, Baohua Li², Lei Zhong¹, Jianping Wang¹

1 Mechanical and Electrical Engineering Institue, Xinjiang Agricultural University, Urumqi, 830052, China
2 College of Mechanics, Shanghai DianJi University, Shanghai, 201306, China
3 School of Energy Engineering, Xinjiang Institute of Engineering, Urumqi, 830023, China

* Corresponding Author: Yuanjun Dai. Email:

(This article belongs to the Special Issue: Aerodynamic Analysis and Optimal Design of Fluid Machinery)

Fluid Dynamics & Materials Processing 2024, 20(7), 1517-1537. https://doi.org/10.32604/fdmp.2024.046828

Received 16 October 2023; Accepted 07 February 2024; Issue published 23 July 2024

Abstract

A combined experimental and numerical research study is conducted to investigate the complex relationship between the structure and the aerodynamic performances of an Archimedes spiral wind turbine (ASWT). Two ASWTs are considered, a prototypical version and an improved version. It is shown that the latter achieves the best aerodynamic performance when the spread angles at the three sets of blades are α = 30°, α = 55°, α = 60°, respectively and the blade thickness is 4 mm. For a velocity V = 10 m/s, a tip speed ratio (TSR) = 1.58 and 2, the maximum C values are 0.223 and 0.263 for the prototypical ASWT and improved ASWT, respectively, and the maximum C enhancement is 17.93%. For V = 10 m/s and TSR = 2, the C values of the prototypical ASWT and improved ASWT are 0.225 and 0.263, respectively, with an aerodynamic performance enhancement of 16.88%. Through mutual verification of the test outcomes and numerical results, it is concluded that the proposed approach can effectively lead to aerodynamic performance improvement.

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