Original scientific paper

https://doi.org/10.17559/TV-20141230180534

Fluid flow modelling through an axial-flow microhydro turbine

Mohammad Hasan Shojaeefard ; School of Mechanical Engineering, Iran University of Science and Technology Narmak, Tehran, Iran
Ammar Mirzaei ; School of Mechanical Engineering, Iran University of Science and Technology Narmak, Tehran, Iran
Mohammad Sadegh Abedinejad ; Institute of Higher Education, (Nongovernmental - Non-profit), Semnan, Iran
Yousef Yassi ; Department of Mechanical Engineering, Energy Institute of Higher Education, Saveh, Iran

Abstract

In this study, a three-dimensional fluid field of axial-flow type microhydro named Agnew has been investigated. All numerical simulations were performed using OpenFOAM, an open source computational fluid dynamic (CFD) code, to investigate the rotor-stator interaction and losses occurring in the turbine. A sliding interface plane was used to pass the disturbance of stationary domain to rotary domain and vice versa. Several turbulence models were also examined together with wall function in order to take into account the turbulence in the flow. The obtained results show that a high resolution advection scheme, mixing plane to model the rotor-stator interaction together with a turbulence intensity of I = 6 % at the inlet, best matches with the experimental results.

Keywords

energy loss coefficient; microhydro; numerical simulation; rotor-stator interaction; turbulence modelling

Hrčak ID:

149383

URI

https://hrcak.srce.hr/149383

Publication date:

14.12.2015.

Article data in other languages: croatian

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