Unsteady simulation of flow in micro vertical axis wind turbine
Communication avec acte
Date
2010Abstract
Though wind turbines and windmills have been used for centuries, the application of aerodynamics technology to improve reliability and reduce costs of wind-generated energy has only been pursued in earnest for the past 40 years. Today, wind energy is mainly used to generate electricity. Wind is a renewable energy source. Power production from wind turbines is affected by certain conditions: wind speed, turbine speed, turbulence and the changes of wind direction. These conditions are not always optimal and have negative effects on most turbines. The present turbine is supposed to be less affected by these conditions because the blades combine a rotating movement around each own axis and around the nacelle’s one. Due to this combination of movements, flow around this turbine can be more highly unsteady, because of great blade stagger angles. The turbine has a rotor with three straight blades of symmetrical airfoil. Paper presents unsteady simulations that have been performed for one wind velocity, and different initial blades stagger angles. The influence of interaction of blades is studied for one specific constant rotational speed among the four rotational speeds that have been studied.
Files in this item
- Name:
- ISTP21_21-133-vertical_axis_tu ...
- Size:
- 1.806Mb
- Format:
- Description:
- communication orale avec actes
Related items
Showing items related by title, author, creator and subject.
-
Communication avec acteSI, Qiaorui; DUPONT, Patrick; BAYEUL-LAINE, Annie-Claude; DAZIN, Antoine; ROUSSETTE, Olivier; SHOUQUI, Yuan; BOIS, Gérard (2014)The overall performance of a vane-island type diffuser of a centrifugal pump model was obtained by means of directional probe traverses. These measurements were performed in an air model of a real hydraulic pump for five ...
-
Two-phase numerical study of the flow field formed in water pump sump: influence of air entrainment Article dans une revue avec comité de lectureBAYEUL-LAINE, Annie-Claude; SIMONET, Sophie; BOIS, Gérard; ISSA, Abir (IOP - Institute of Physics, 2012)In a pump sump it is imperative that the amount of non-homogenous flow and entrained air be kept to a minimum. Free air-core vortex occurring at a water-intake pipe is an important problem encountered in hydraulic engineering. ...
-
Article dans une revue avec comité de lectureBAYEUL-LAINE, Annie-Claude; DUPONT, Patrick; CAVAZZINI, Giovanna; CHERDIEU, Patrick; DAZIN, Antoine; BOIS, Gérard; ROUSSETTE, Olivier (2013)The paper presents analysis of the performance and the internal flow behaviour in the vaned diffusor of a radial flow pump using PIV (Particle Image Velocimetry) and pressure probe traverses. PIV measurements have already ...
-
Article dans une revue avec comité de lectureDUPONT, Patrick; BAYEUL-LAINE, Annie-Claude; DAZIN, Antoine; BOIS, Gérard; ROUSSETTE, Olivier; SI, Qiaorui (Korean Society for Fluid Machinery, 2015)This paper deals with the influence of leakage flow existing in SHF pump model on the analysis of internal flow behaviour inside the vane diffuser of the pump model performance using both experiments and calculations. PIV ...
-
Article dans une revue avec comité de lectureBAYEUL-LAINE, Annie-Claude; DUPONT, Patrick; DAZIN, Antoine; BOIS, Gérard (IOP Publishing, 2019)The realization and the validation of a simulation in fluid mechanics require an indepth expertise of the modelling process. However, how could the results be guaranteed if they were not accompanied by experimental ...