Numerical Simulation Study of Impact of Stagger Angle and Radius Ratio on Performance of Combined Type VAWT

Authors

Xiucong Fu, 1. Guangzhou HKUST Fok Ying Tung Research Institute, Guangzhou 511458, China;;2. Hong Kong University of Science and Technology,Hong Kong, China;;
Xiaoting Liang, 2. Hong Kong University of Science and Technology,Hong Kong, China;;4.Guoke Tiandi Science and Technology Co., Ltd., Beijing 100089, China;
Baoxing Ou, 1. Guangzhou HKUST Fok Ying Tung Research Institute, Guangzhou 511458, China;;
Chili Wu, 1. Guangzhou HKUST Fok Ying Tung Research Institute, Guangzhou 511458, China;;
Ruheng Zhao, 1. Guangzhou HKUST Fok Ying Tung Research Institute, Guangzhou 511458, China;;2. Hong Kong University of Science and Technology,Hong Kong, China;;
Yuepeng Li, 1. Guangzhou HKUST Fok Ying Tung Research Institute, Guangzhou 511458, China;;
Kaihong Pi, 3. Guangzhou Hong Ying Energy Technology Co., Ltd., Guangzhou 510800, China;;
Xiao Shuai, 3. Guangzhou Hong Ying Energy Technology Co., Ltd., Guangzhou 510800, China;;

Abstract

Abstract: Darrieus-Savonius combined rotor could effectively improve the performance of sole type vertical axis wind turbine. In order to investigate the impacts of radius ratios and stagger angles on the combined rotor, and their best combination, aerodynamic simulations of different radius ratios and stagger angles were studied. The numerical simulation is based on 2D unsteady incompressible air model and realizable k-ε turbulence model. The result indicates that the radius ratio represents the occupied swept area of Savonius rotor, the larger radius ratio, the higher proportion of the positive momentum outputs (M≥0) in a rotation period. In addition, there exists an optimal stagger angle under a specific radius ratio making the turbine operate in higher tip speed ratio zone with maximum power coefficient.

Recommended Citation

Fu, Xiucong; Liang, Xiaoting; Ou, Baoxing; Wu, Chili; Zhao, Ruheng; Li, Yuepeng; Pi, Kaihong; and Shuai, Xiao (2020) "Numerical Simulation Study of Impact of Stagger Angle and Radius Ratio on Performance of Combined Type VAWT," Journal of System Simulation: Vol. 28: Iss. 12, Article 11.
DOI: 10.16182/j.issn1004731x.joss.201612011
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss12/11

First Page

2951

Revised Date

2015-07-26

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201612011

Last Page

2958

CLC

TP391.9

Recommended Citation

Fu Xiucong, Liang Xiaoting, Ou Baoxing, Wu Chili, Zhao Ruheng, Li Yuepeng, Pi Kaihong, Xiao Shuai. Numerical Simulation Study of Impact of Stagger Angle and Radius Ratio on Performance of Combined Type VAWT[J]. Journal of System Simulation, 2016, 28(12): 2951-2958.

DOI

10.16182/j.issn1004731x.joss.201612011