A Numerical Investigation of Three-Dimensional Impinging Jets.
Abstract
Progress is reported on the direct numerical simulation complex VTOL flows using the full three-dimensional, time-dependent Navier-Strokes equations. The objective of this numerical simulation is to compute accurately the details of the flow, including the role of initial turbulence in the jet, the influence of forward motion on hover aerodynamics, the collision zone and fountain characteristics, and the jet structure and entrainment process in the transitional flight regime. The unsteady behavior of the jet flow due to forcing at a specific frequency has been investigated. Preliminary results on unsteady single-frequency forcing are presented and a discussion of work in the turbulence aspect of the problem is included. Keywords: Upwash fountain.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1985
- Accession Number
- ADA177880
Entities
People
- Magdi H. Rizk
- Suresh Menon