In recent years numerical methods have been widely used to effectively resolve complex
flow features of aerodynamics flows with meshes that are reasonable for today's computers …

The helicopter rotor wake is among the most complex fluid dynamic structures being three
dimensional and in many cases unsteady. The wake begins at the blade (s) where the flow …

A helicopter is subjected to a wide variety of flight conditions with disparate objectives; these
include efficient cruise and hover, and high-performance maneuvering. The hover condition …

THE prediction of rotor blade aerodynamic loads, especially in forward ight, requires
accurate and effi cient modeling of several distinct phenomena. On the advancing side, the …

Wake breakdown is a well-documented computational phenomenon associated with highly
resolved computational hover predictions. As the computational state-of-the-art for hover …

This volume presents several modern, valuable computational methods used to describe
wave propagation phenomena in selected areas of physics and technology. It begins with …

This paper discusses existing techniques for modeling the rotor wake in hover and in
forward flight. It also briefly review extensions of these methods for modeling complete …

The helicopter rotor flowfield is one of the most complex and challenging problems in
theoretical aerodynamics. Its accurate analysis is essential for the design of rotors with …

A new far‐field approximation to the Ffowcs Williams—Hawkings quadrupole source, which
is valid for an in‐plane observer and utilizes preintegration in the direction normal to the …

WITH the increased performance of workstations and super-computers, three-dimensional
Navier-Stokes solvers are being used by industry today for a myriad of applications. Navier …