Numerical studies of the reversed-field pinch at high aspect ratio

1998 ◽  
Vol 5 (10) ◽  
pp. 3644-3648 ◽  
Author(s):  
H.-E. Sätherblom ◽  
J. R. Drake
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Reversed Field Pinch ◽  
Numerical Studies ◽  
Reversed Field

scholarly journals Numerical Investigation into Flutter and Flutter-Buffet Phenomena for a Swept Wing and a Curved Planform Wing

2019 ◽  
Vol 2019 ◽  
pp. 1-19 ◽  
Author(s):  
Mario Rosario Chiarelli ◽  
Salvatore Bonomo
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
High Speed ◽  
Sensitivity Study ◽  
Fuel Saving ◽  
Swept Wing ◽  
Instability Condition ◽  
Aspect Ratios ◽  
Numerical Studies ◽  
Classical Flutter

The results of numerical studies carried out on high-aspect-ratio wings with different planforms are discussed: the transonic regime is analysed for a swept wing and a curved planform wing. The wings have similar aspect ratios and similar aerodynamic profiles. The analyses were carried out by CFD and FE techniques, and the reliability of the numerical aerodynamic results was proven by a sensitivity study. Analysing the performances of the two wings demonstrated that in transonic flight conditions, a noticeable drag reduction can be obtained by adopting a curved planform wing. In addition, for such a wing, the aeroelastic instability condition, consisting in a classical flutter, is postponed compared to a conventional swept wing, for which a flutter-buffet instability occurs. In a preliminary manner, the study shows that, for a curved planform wing, the high speed buffet is not an issue and at the same time notable fuel saving can be achieved.

scholarly journals Steady-State Approach to Low-Aspect-Ratio Reversed-Field Pinch Nuclear Fusion Reactor

2005 ◽  
Vol 81 (11) ◽  
pp. 932-943 ◽  
Author(s):  
Shoichi SHIINA ◽  
Yasuyuki YAGI ◽  
Hisaya SUGIMOTO ◽  
Hisao ASHIDA ◽  
Yoichi HIRANO ◽  
...  
Keyword(s):  
Steady State ◽  
Aspect Ratio ◽  
Fusion Reactor ◽  
Nuclear Fusion ◽  
Reversed Field Pinch ◽  
Nuclear Fusion Reactor ◽  
Low Aspect Ratio ◽  
Reversed Field

Observation of Helical Structure by Imaging Diagnostics in a Low-Aspect-Ratio Reversed Field Pinch

2011 ◽  
Vol 80 (11) ◽  
pp. 114501 ◽  
Author(s):  
Takumi Onchi ◽  
Ryuya Ikezoe ◽  
Kensuke Oki ◽  
Akio Sanpei ◽  
Haruhiko Himura ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Helical Structure ◽  
Reversed Field Pinch ◽  
Imaging Diagnostics ◽  
Low Aspect Ratio ◽  
Reversed Field

Equilibrium Reconstruction and Estimation of Neoclassical Effect in Low-Aspect-Ratio Reversed Field Pinch Experiments on RELAX

2009 ◽  
Vol 78 (1) ◽  
pp. 013501 ◽  
Author(s):  
Akio Sanpei ◽  
Kensuke Oki ◽  
Ryuya Ikezoe ◽  
Takumi Onchi ◽  
Ken-Ichi Murata ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Reversed Field Pinch ◽  
Low Aspect Ratio ◽  
Equilibrium Reconstruction ◽  
Reversed Field

Features of the Electron-Temperature Distribution in a Low-Aspect-Ratio Reversed Field Pinch Plasmas

2017 ◽  
Vol 86 (6) ◽  
pp. 063501 ◽  
Author(s):  
Akio Sanpei ◽  
Kanae Nishimura ◽  
Yusuke Aoki ◽  
Sadao Masamune ◽  
Haruhiko Himura ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Aspect Ratio ◽  
Electron Temperature ◽  
Reversed Field Pinch ◽  
Low Aspect Ratio ◽  
Reversed Field

Observation of Large-Scale Profile Change of Magnetic Field in a Low-Aspect Ratio Reversed Field Pinch

2008 ◽  
Vol 77 (7) ◽  
pp. 075005 ◽  
Author(s):  
Kensuke Oki ◽  
Ryuya Ikezoe ◽  
Takumi Onchi ◽  
Akio Sanpei ◽  
Haruhiko Himura ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Aspect Ratio ◽  
Large Scale ◽  
Reversed Field Pinch ◽  
Low Aspect Ratio ◽  
Reversed Field ◽  
Scale Profile ◽  
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