skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Centrifugal instability in the regime of fast rotation

ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]
  1. Laplace, CNRS, INPT, UPS, Université de Toulouse, 31062 Toulouse, France
  2. LOA-ENSTA-CNRS, Université de Paris XI - Ecole Polytechnique, 91128 Palaiseau, France
  3. Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA
Publication Date:
Sponsoring Org.:
OSTI Identifier:
Grant/Contract Number:
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 8; Related Information: CHORUS Timestamp: 2018-02-14 14:31:18; Journal ID: ISSN 1070-664X
American Institute of Physics
Country of Publication:
United States

Citation Formats

Gueroult, R., Rax, J. M., and Fisch, N. J.. Centrifugal instability in the regime of fast rotation. United States: N. p., 2017. Web. doi:10.1063/1.4994546.
Gueroult, R., Rax, J. M., & Fisch, N. J.. Centrifugal instability in the regime of fast rotation. United States. doi:10.1063/1.4994546.
Gueroult, R., Rax, J. M., and Fisch, N. J.. 2017. "Centrifugal instability in the regime of fast rotation". United States. doi:10.1063/1.4994546.
title = {Centrifugal instability in the regime of fast rotation},
author = {Gueroult, R. and Rax, J. M. and Fisch, N. J.},
abstractNote = {},
doi = {10.1063/1.4994546},
journal = {Physics of Plasmas},
number = 8,
volume = 24,
place = {United States},
year = 2017,
month = 8

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on July 20, 2018
Publisher's Accepted Manuscript

Citation Metrics:
Cited by: 1work
Citation information provided by
Web of Science

Save / Share:
  • The phenomena of rotation and subsequent instability of plasma in fast compression (theta-pinch) devices are discussed in the light of present stability theory including finite Larmor radius effects. For the rotation to be unstable the plasma must possess an angular momentum exceeding that appropriate to the ion diamagnetic current and it is suggested that this is acquired as a result of a secondary process occurring as the plasma leaves the wall. It is shown that when this process is taken into account the theory is adequate to explain most observed phenomena and suggests others that might be investigated. In themore » Appendix the theory of finite Larmor radius stabilization is interpreted in terms of a hydrodynamic picture. This analysis is not rigorous but does suggest that the stability criteria, originally derived for a specific model, might have more general validity.« less
  • The authors examine the effect, on the axial force, of the most frequently used regulation methods in centrifugal blowers: throttling at suction and supercharging, variation of the angular velocity of the rotor, and the variation of the twist of the flow using the input regulating device (IRD). The investigations were conducted on a model of a single-stage centrifugal blower of natural gas equipped with a strain gauging system for measuring the axial load in the thrust bearing. An IRD of the axial type with the central body was used in regulation by varying the twist of the flow at themore » inlet into the rotor. A computer was used for averaging out the experimental data and integrating in respect to the surfaces of the rotor. Formation, by means of the IRD, of positive twisting of the flow in front of the rotor results in a considerably smaller reduction of axial force, especia-ly in regimes. Throttling in both supercharging and in suction increased the axial force.« less
  • A treatment of elastic stresses in nuclear rotation with the nucleus considered as an incompressible elastic body with a stationary spherical core surrounded by a circulating mass is presented. Centrifugal stresses acting in directions perpendicular to the axis of rotation introduce variations in the moment of inertia. The variable moment of inertia model, so successful in predicting the rotational spectrum of even-even nuclei, is explained. (AIP)
  • The internal rotation fine structure of the microwave spectrum of ethyl fluoride CH/sub 3/CH/sub 2/F was resolved and analyzed in the ground state. The assignment of the high J lines was checked by a centrifugal distortion analysis. The barrier height V/sub 3/ determined from the ground state is 3349 +- 4 cal/mol.