Aerodynamic Characteristics of Turbojav Measured with 1-m Magnetic Suspension and Balance System

2021 ◽  
Author(s):  
Hiroyuki Okuizumi ◽  
Kasumi Sasaki ◽  
Yasfumi Konishi ◽  
Shigeru Obayashi
Keyword(s):  
Aerodynamic Characteristics ◽  
Magnetic Suspension ◽  
Balance System

Aerodynamic Characteristics of Low-Fineness-Ratio Freestream-Aligned Cylinders with Magnetic Suspension and Balance System

AIAA Journal ◽  
2020 ◽  
Vol 58 (8) ◽  
pp. 3711-3714 ◽  
Author(s):  
K. Shinji ◽  
H. Nagaike ◽  
T. Nonomura ◽  
K. Asai ◽  
H. Okuizumi ◽  
...  
Keyword(s):  
Aerodynamic Characteristics ◽  
Magnetic Suspension ◽  
Balance System

scholarly journals Experimental and Computational Study of Archery Arrows Fletched with Straight Vanes

Proceedings ◽  
2020 ◽  
Vol 49 (1) ◽  
pp. 56
Author(s):  
Julio Ortiz ◽  
Atsushi Serino ◽  
Toshinari Hasegawa ◽  
Takahito Onoguchi ◽  
Hiroki Maemukai ◽  
...  
Keyword(s):  
Initial Velocity ◽  
Computational Study ◽  
Aerodynamic Characteristics ◽  
Magnetic Suspension ◽  
Boundary Layer Transition ◽  
Free Flight ◽  
Layer Transition ◽  
Experimental Procedure ◽  
Balance System ◽  
Velocity Decay

The aerodynamic characteristics of archery arrows fletched with two types of straight vanes, for which the area is different, were studied. The arrows’ pitching moment (CM), lift (CL) and drag (CD) coefficients were measured in the 60 × 60 cm Magnetic Suspension and Balance System (MSBS) from JAXA. At a Reynolds number of Re = 1.2 × 104, the values of CD were 1.56 and 2.05 for the short and large vanes, respectively. In a second experimental procedure, the arrows’ deceleration in free flight was measured by inserting an acceleration sensor inside their shafts. For shots with an initial velocity of around 56.4 ms−1, a velocity decay of around 8% was measured. A turbulent–laminar boundary layer transition during free flight was found for shots with an average Re = 1.8 × 104. Lastly, through numerical computations, the area difference of the two vanes was analyzed to verify the importance of CM and CL during the arrows’ flights.

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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