Effect of fineness ratios of 0.75–2.0 on aerodynamic drag of freestream-aligned circular cylinders measured using a magnetic suspension and balance system

2018 ◽  
Vol 59 (5) ◽  
Author(s):  
Taku Nonomura ◽  
Keiichiro Sato ◽  
Keita Fukata ◽  
Hayato Nagaike ◽  
Hiroyuki Okuizumi ◽  
...  
Keyword(s):  
Aerodynamic Drag ◽  
Magnetic Suspension ◽  
Circular Cylinders ◽  
Balance System

Extra Drag Force on a Circular Cylinder Due to the Presence of Solid Particles in Subsonic Compressible Flow

1991 ◽  
Author(s):  
Stanley B. Mellsen
Keyword(s):  
Compressible Flow ◽  
Incompressible Flow ◽  
Aerodynamic Drag ◽  
Collection Efficiency ◽  
Reynolds Numbers ◽  
Solid Particles ◽  
Circular Cylinders ◽  
Critical Mach Number ◽  
Wide Range ◽  
Inertia Parameters

Abstract The effect of particles, such as dust in air on aerodynamic drag of circular cylinders was calculated for compressible flow at critical Mach number and for incompressible flow. The effect of compressibility was found negligible for particles larger than about 10 μm, for which the air can be considered a continuum. Drag coefficient and collection efficiency are provided for a wide range of inertia parameters and Reynolds numbers for both compressible and incompressible flow.

Numerical study on reducing aerodynamic drag and noise of circular cylinders with non-uniform porous coatings

2020 ◽  
Vol 107 ◽  
pp. 106308
Author(s):  
Pikai Zhang ◽  
Yu Liu ◽  
Zhiyong Li ◽  
Hanru Liu ◽  
Yannian Yang
Keyword(s):  
Aerodynamic Drag ◽  
Numerical Study ◽  
Circular Cylinders ◽  
Porous Coatings

Magnetic Suspension and Balance System for Wind Tunnel Application

1963 ◽  
Vol 67 (635) ◽  
pp. 717-724 ◽  
Author(s):  
J. E. Chrisinger ◽  
E. L. Tilton ◽  
W. J. Parkin ◽  
J. B. Coffin ◽  
E. E. Covert
Keyword(s):  
Wind Tunnel ◽  
Magnetic Suspension ◽  
Balance System ◽  
Wind Tunnel Data

SummaryIn this article a magnetic suspension and balance system suitable for wind tunnel application is discussed. General considerations are presented that illustrate the nature of the problems to be solved as well as one solution of these problems.Finally some initial wind tunnel data are presented.

Wind tunnel test of Japanese arrows with the JAXA 60-cm magnetic suspension and balance system

2012 ◽  
Vol 53 (2) ◽  
pp. 451-466 ◽  
Author(s):  
Hideo Sawada ◽  
Keisuke Umezawa ◽  
Tomohiro Yokozeki ◽  
Akihito Watanabe ◽  
Takenori Otsu
Keyword(s):  
Wind Tunnel ◽  
Wind Tunnel Test ◽  
Magnetic Suspension ◽  
Balance System
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