Abstract
The longitudinal vortex wind turbine (LV-WT) is a novel propeller type, but the turbine blade is the circular cylinder. The blade is driven by lift force of the longitudinal vortex (LV). This work is to examine a simple single-cylinder blade to suppress the negative driving-force portion by cutting and keeping only the useful area. Unsteady Reynolds-Averaged Navier-Stokes (URANS) simulation is used for investigation. For the original single blade, the positive driving force was generated around the dominance of the LV at the crossing section. Meanwhile, the negative driving force appears far from the ring regime. When the original blade is diminished to avoid the unpleasant parts, the negative regions are suppressed completely. The distribution of the aerodynamic forces along the blade length is symmetric for the length extended equally. Final, the equally extended blade with the length of three times of the ring width is built and tested in the wind tunnel. The tendency of the experimental data and the CFD results correlate very well.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Bychkov NM, Dovgal AV, Kozlov VV (2007) Magnus wind turbines as an alternative to the blade ones. J Phys Conf Ser 75(012004):1–7
Schlichting H, Gersten K (2000) Boundary-layer theory, 8th edn. Springer, Berlin, Germany
Takahashi T, Yoshitake Y, Sakamoto K, Hemsuwan W (2016) An innovative wind/water turbine with circular propeller driven by longitudinal vortex. In Proceeding of the 15th WWEC2016 TOKYO conference, Japan. PS-A-5
Acknowledgements
This work was supported by MEXT KAKENHI grant number JP16685247.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Hemsuwan, W., Sakamoto, K., Takahashi, T. (2019). Longitudinal Vortex Wind Turbine: Effect of the Blade Lengths. In: Zhou, Y., Kimura, M., Peng, G., Lucey, A., Huang, L. (eds) Fluid-Structure-Sound Interactions and Control. FSSIC 2017. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-10-7542-1_18
Download citation
DOI: https://doi.org/10.1007/978-981-10-7542-1_18
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-7541-4
Online ISBN: 978-981-10-7542-1
eBook Packages: EngineeringEngineering (R0)