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Title: Hybrid DMST model for high-solidity straight-bladed VAWTs
Authors: Peng, YX 
Xu, YL 
Zhan, S 
Keywords: DMST
Hybrid DMST
Optimal pitch
Vertical axis wind turbine
Issue Date: 2019
Publisher: Elsevier
Source: Energy procedia, 2019, v. 158, p. 376-381 How to cite?
Journal: Energy procedia 
Abstract: Straight-bladed vertical-axis wind turbines (SBVAWTs) have unsatisfactory power generation and self-start ability due to continuous variation of attack angle to the blades. This study attempts to propose a proper analytical tool for high-solidity SBVAWTs since high-solidity SBVAWTs could be valuable in application for their comparatively low operational speed and good self-start performance. The applicability of the double-disk multiple stream-tube (DMST) model, which is a mainstream tool for SBVAWTs, is first examined for high-solidity SBVAWTs using the measurement data of aerodynamic forces on the blades obtained from wind tunnel tests. It is found that the complex flow field around the high-solidity SBVAWT introduces difficulties for the current DMST model to make satisfactory predictions. A hybrid DMST model, which uses the attack angle-dynamic aerodynamic force coefficient relationship established based on the measurement data, is then proposed. The aerodynamic forces estimated from the proposed hybrid DMST model manifest that the hybrid DMST model could predict the aerodynamic forces on the blades of the high-solidity SBVAWT with higher accuracy than the existing DMST models.
Description: 10th International Conference on Applied Energy, ICAE 2018, Hong Kong, 22-25 August 2018
EISSN: 1876-6102
DOI: 10.1016/j.egypro.2019.01.118
Rights: © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license ( Peer-review under responsibility of the scientific committee of ICAE2018 – The 10th International Conference on Applied Energy.
The following publication Peng, Y. X., Xu, Y. L., & Zhan, S. (2019). Hybrid DMST model for high-solidity straight-bladed VAWTs. Energy Procedia, 158, 376-381 is available at
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