Application of vorticity confinement to rotor wake simulations. (1st January 2012)

• Record Type: Journal Article
• Authors: Costes, Michel; Renaud, Thomas; Rodriguez, Benoit; Reboul, Gabriel
• Is Part Of: International journal of engineering systems modelling and simulation. Volume 4:Number 1/2(2012)
• Page Start: 102
• Page End: 112
• Publication Date: 2012-01-01
• Subjects: helicopter rotor wake -- vorticity confinement -- hovering flight -- descent flight -- blade-vortex interaction; Engineering systems -- Computer simulation -- Periodicals; Engineering systems -- Mathematical models -- Periodicals; 620.0042
• Languages: English
• ISSNs: 1755-9758

Abstract

The VC2 vorticity confinement technique introduced by Steinhoff for vortex dominated flows is presented. After a brief description of the formulation and of its theoretical developments, the method is applied to the simulation of helicopter rotor wakes, focusing on two configurations: the rotor in hover, for which the flow field is mainly driven by the wake characteristics, and the rotor in low-speed descent flight where BVI noise is created. The results obtained show the efficiency of the approach, which provides wake predictions of the same or even better quality as higher-order methods.