From Applications of Circulation Control Technologies: Progress in Astronautics and Aeronautics, Volume 214

Chapter List

Chapter 24: Coanda Effect and Circulation Control for Nonaeronautical Applications

Terence R. Day [*]
Vortex Dynamics Pty Ltd, Mount Tamborine, Queensland, Australia

Copyright 2005 by Terence R. Day. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission.

I. Introduction

At the Coanda Effect/CC Workshop in Hampton, Virginia (March 16 17, 2004) 1 the question was posed, What are the roadblocks to further development? Those roadblocks may be a result of a failure to address certain deficiencies or an inability to find solutions. Examples of operational deficiencies are insufficient quantity of CC air, heavy, complicated air pumps, heavy, energywasting plumbing, and so on. To address some of these issues the author describes here a number of practical nonaeronautical devices employing the Coanda effect or Coanda/Circulation Control (CC), a novel high-volume pump and a novel fan to supply CC air.

These projects are proposed commercial outcomes for the Coanda effect and CC. The purpose is to describe these novel applications and propose that some creativity may be beneficial in promotion of the Coanda effect and CC to gain credibility in a wider arena than only within the Coanda effect/CC scientific community.

The overview papers in this book and other available literature2 ,3 contain adequate history and applications of the Coanda effect as it relates to CC and the present author will start from this platform of knowledge and show its applications to novel nonaeronautical situations.


II. Applications

A. Oscillating Channel Flow Including Self Oscillating Channel...

Products & Services
Magnetic Proximity Sensors
Magnetic proximity sensors include devices that work on inductive, variable reluctance, magneto resistive or Hall effect principles. Proximity sensors detect the presence or absence of an object using a critical distance.
Soil and Asphalt Compactors

Soil and asphalt compactors compress soil, asphalt, crushed aggregates, or landfill trash to increase the density of a collective substrate. They are common in construction, agricultural, waste and recycling, and municipal applications. 

Hall Effect Position Sensors
Hall effect position sensors are non-contact devices that convert energy from a magnetic field into an electrical signal. They use the Hall effect, a voltage caused by current-flow in the presence of a magnetic field.
Gyroscopes are designed to measure angular rate or orientation about a given directional vector.
Fans and Blowers (industrial)

Industrial fans and blowers are move air and ganular media in industrial and commercial settings. Typical applications include air circulation for personnel, exhaust, or material handling.

Topics of Interest

Chapter List Chapter 7: Pneumatic Flap Performance for a Two-Dimensional Circulation Control Airfoil Chapter 8: Trailing Edge Circulation Control of an Airfoil at Transonic Mach Numbers Chapter 9:...

Chapter List Chapter 15: Investigation of Turbulent Coanda Wall Jets Using DNS and RANS Chapter 16: Rans and Detached-Eddy Simulation of the NCCR Airfoil Chapter 17: Full Reynolds-Stress Modeling...

Gregory S. Jones [*] NASA Langley Research Center, Hampton, Virginia Copyright 2005 by the American Institute of Aeronautics and Astronautics, Inc. No copyright is asserted in the United States under...

Overview Gerald Angle II, [*] Brian O Hara, [*] Wade Huebsch, [ ] and James Smith [ ] West Virginia University, Morgantown, West Virginia Copyright 2005 by the American Institute of Aeronautics and...

Chapter List Chapter 1: Advantages of Combining BLC Suction with Circulation Control High-Lift Generation Chapter 2: Overview of Circulation Control Pneumatic Aerodynamics Blown Force and Moment...