Flow Physics Analysis of Three-Bucket Helical Savonius Rotor at Twist Angle Using CFD
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2013, Vol 3, Issue 2
Abstract
Abstract: In this research work the flow behavior was analyzed, which affect the power coefficient as well as torque coefficient of a helical Savonius rotor is investigated by means of commercial code CFD. Conventional three bladed Savonius rotors have high coefficient of static torque at certain rotor angles and negative coefficient of static torque at certain rotor angle. In order to increase the efficiency of all rotor angles the system a helical Savonius rotor with a twist of certain proposed degree is introduced. A three-dimensional model of twist three blades helical Savonius rotor at , , and rotor angle has been constructed by using the software gambit of the Fluent 6.3 package. The contours of static pressure and velocity magnitude around the rotor blades area at horizontal iso-plane is obtained from the CFD simulation. High performance was obtained at advanced bucket in upstream air flow at rotor angle and maximum positive static pressure obtained at rotor angle, which affect the positive coefficient of static torque.
Authors and Affiliations
Pinku Debnath
Keywords
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