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NUMERICAL SIMULATON OF A DARRIEUS TURBINE

DOI: 10.1615/ICHMT.2015.IntSympAdvComputHeatTransf.1280
pages 1338-1345

Fatima Meddane
Laboratoire d'Aéro-Hydrodynamique Naval, Département de Génie Maritime, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf, USTO-MB, Oran, Algérie

Tayeb Yahiaoui
Laboratoire d'Aéronautique et Systèmes Propulsifs, Départment de Génie Mécanique, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf, USTO-MB, Oran, Algérie

Omar Imine
Laboratoire d'Aéronautique et Systèmes Propulsifs, Département de Génie Mécanique, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf, USTO-MB, Oran, Algérie

Lahouari Adjlout
Laboratoire d'Aéro-Hydrodynamique Naval, Département de Génie Maritime, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf, USTO-MB, Oran, Algérie

要約

This paper presents a numerical investigation on a new configuration of a vertical axis wind turbine (Darrieus type). The concept proposed is defined as a tandem straight-bladed turbine. The simulations have been performed using Fluent code. Sliding mesh technique was applied to treat the unsteady character of the flow. A time step size corresponding to ϑ = 3.6° has been chosen. The turbulence model used for calculations is the one-equation Spalart-Allmaras model. The numerical investigation was validated through the comparison of the calculations for a two-bladed turbine and a conventional three-bladed turbine with experimental cases found in the literature. The results obtained with the 2D numerical simulation of the proposed H-rotor present a reasonable improvement in the performance. The gain in power is about 35 % compared to the conventional three straight-bladed turbine.

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