CFD analysis of flow field around a wing for small hydropower generator driven by Karman Vortices

Kenta Hasegawa, Takanori Hino

Abstract

This study focused on a new small hydropower system using dielectric elastomers driven by Karman vortex street. We conducted two-dimensional CFD analysis on the model of the hydropower system where a movable wing is placed behind a circular cylinder generating Karman vortices in order to look into behavior of a wing and the flow field around it. Comparison is made between the CFD results and the data obtained by the experiment in which a model of the generation system was fabricated and tested. The simulation results of a flow pattern correspond well to the experiment when the vibration amplitude of the CFD results is close to the resonance amplitude of the experiments.

Original languageEnglish
Title of host publicationProceedings of the International Offshore and Polar Engineering Conference
PublisherInternational Society of Offshore and Polar Engineers
Pages876-880
Number of pages5
Volume2015-January
ISBN (Print)9781880653890
StatePublished - 2015
Event25th International Ocean and Polar Engineering Conference, ISOPE 2015 - Kona, Big Island, United States

Other

Other25th International Ocean and Polar Engineering Conference, ISOPE 2015
CountryUnited States
CityKona, Big Island
Period15/6/2115/6/26

Fingerprint

Computational fluid dynamics
Vortex flow
Experiments
Flow fields
Gas generators
Circular cylinders
Elastomers
Flow patterns

Keywords

  • CFD analysis
  • Dielectric elastomers
  • Flow field
  • Karman vortex street
  • Resonance amplitude
  • Small hydropower
  • Wing vibration

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Ocean Engineering

Cite this

Hasegawa, K., & Hino, T. (2015). CFD analysis of flow field around a wing for small hydropower generator driven by Karman Vortices. In Proceedings of the International Offshore and Polar Engineering Conference. (Vol. 2015-January, pp. 876-880). International Society of Offshore and Polar Engineers.

CFD analysis of flow field around a wing for small hydropower generator driven by Karman Vortices. / Hasegawa, Kenta; Hino, Takanori.

Proceedings of the International Offshore and Polar Engineering Conference. Vol. 2015-January International Society of Offshore and Polar Engineers, 2015. p. 876-880.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hasegawa, K & Hino, T 2015, CFD analysis of flow field around a wing for small hydropower generator driven by Karman Vortices. in Proceedings of the International Offshore and Polar Engineering Conference. vol. 2015-January, International Society of Offshore and Polar Engineers, pp. 876-880, 25th International Ocean and Polar Engineering Conference, ISOPE 2015, Kona, Big Island, United States, 21-26 June.
Hasegawa K, Hino T. CFD analysis of flow field around a wing for small hydropower generator driven by Karman Vortices. In Proceedings of the International Offshore and Polar Engineering Conference. Vol. 2015-January. International Society of Offshore and Polar Engineers. 2015. p. 876-880.

Hasegawa, Kenta; Hino, Takanori / CFD analysis of flow field around a wing for small hydropower generator driven by Karman Vortices.

Proceedings of the International Offshore and Polar Engineering Conference. Vol. 2015-January International Society of Offshore and Polar Engineers, 2015. p. 876-880.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

@inbook{04a9417cd8ef4b16982b901766d6e05b,
title = "CFD analysis of flow field around a wing for small hydropower generator driven by Karman Vortices",
keywords = "CFD analysis, Dielectric elastomers, Flow field, Karman vortex street, Resonance amplitude, Small hydropower, Wing vibration",
author = "Kenta Hasegawa and Takanori Hino",
year = "2015",
isbn = "9781880653890",
volume = "2015-January",
pages = "876--880",
booktitle = "Proceedings of the International Offshore and Polar Engineering Conference",
publisher = "International Society of Offshore and Polar Engineers",

}

TY - CHAP

T1 - CFD analysis of flow field around a wing for small hydropower generator driven by Karman Vortices

AU - Hasegawa,Kenta

AU - Hino,Takanori

PY - 2015

Y1 - 2015

N2 - This study focused on a new small hydropower system using dielectric elastomers driven by Karman vortex street. We conducted two-dimensional CFD analysis on the model of the hydropower system where a movable wing is placed behind a circular cylinder generating Karman vortices in order to look into behavior of a wing and the flow field around it. Comparison is made between the CFD results and the data obtained by the experiment in which a model of the generation system was fabricated and tested. The simulation results of a flow pattern correspond well to the experiment when the vibration amplitude of the CFD results is close to the resonance amplitude of the experiments.

AB - This study focused on a new small hydropower system using dielectric elastomers driven by Karman vortex street. We conducted two-dimensional CFD analysis on the model of the hydropower system where a movable wing is placed behind a circular cylinder generating Karman vortices in order to look into behavior of a wing and the flow field around it. Comparison is made between the CFD results and the data obtained by the experiment in which a model of the generation system was fabricated and tested. The simulation results of a flow pattern correspond well to the experiment when the vibration amplitude of the CFD results is close to the resonance amplitude of the experiments.

KW - CFD analysis

KW - Dielectric elastomers

KW - Flow field

KW - Karman vortex street

KW - Resonance amplitude

KW - Small hydropower

KW - Wing vibration

UR - http://www.scopus.com/inward/record.url?scp=84944685390&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84944685390&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9781880653890

VL - 2015-January

SP - 876

EP - 880

BT - Proceedings of the International Offshore and Polar Engineering Conference

PB - International Society of Offshore and Polar Engineers

ER -