Linear and nonlinear development of m=0 instability in a diffuse Bennett Z-pinch equilibrium with sheared axial flow

2010 ◽  
Vol 17 (7) ◽  
pp. 072107 ◽  
Author(s):  
I. Paraschiv ◽  
B. S. Bauer ◽  
I. R. Lindemuth ◽  
V. Makhin
Keyword(s):  
Axial Flow ◽  
Nonlinear Development ◽  
Linear And Nonlinear ◽  
Z Pinch

Linear and Nonlinear Development of the m = 0 Instability in Z-Pinch Equilibria with Axial Sheared Flows

2008 ◽  
Vol 28 (2) ◽  
pp. 195-199
Author(s):  
Ioana Paraschiv ◽  
Bruno S. Bauer ◽  
Irvin R. Lindemuth ◽  
Volodymyr Makhin
Keyword(s):  
Nonlinear Development ◽  
Sheared Flows ◽  
Linear And Nonlinear ◽  
Z Pinch

Linear and Nonlinear Development of the M=0 Instability in z-pinch Equilibria with Axial Sheared Flows

2007 ◽  
Author(s):  
Ioana Paraschiv ◽  
Bruno S. Bauer ◽  
Irvin R. Lindemuth ◽  
Vladimir I. Sotnikov ◽  
Vlad Makhin ◽  
...  
Keyword(s):  
Nonlinear Development ◽  
Sheared Flows ◽  
Linear And Nonlinear ◽  
Z Pinch

LINEAR AND NONLINEAR DYNAMICS OF CANTILEVERED CYLINDERS IN AXIAL FLOW. PART 3: NONLINEAR DYNAMICS

2002 ◽  
Vol 16 (6) ◽  
pp. 739-759 ◽  
Author(s):  
C. SEMLER ◽  
J.L. LOPES ◽  
N. AUGU ◽  
M.P. PAÏDOUSSIS
Keyword(s):  
Nonlinear Dynamics ◽  
Axial Flow ◽  
Flow Part ◽  
Linear And Nonlinear

Linear and Nonlinear Dynamics of Cantilevered Cylinders in Axial Flow

2014 ◽  
Author(s):  
Ahmad Jamal ◽  
Michael P. Païdoussis ◽  
Luc G. Mongeau
Keyword(s):  
Equations Of Motion ◽  
Axial Flow ◽  
Experimental System ◽  
Vital Role ◽  
Viscous Force ◽  
Flexible Cylinder ◽  
Force Coefficients ◽  
Precise Calculation ◽  
Linear And Nonlinear ◽  
Nonlinear Equations Of Motion

Understanding and prediction of the dynamics of slender flexible cylinders in axial flow is of interest for the design and safe operation of heat exchangers and nuclear reactors, specifically that of heat exchanger tubes, nuclear fuel elements, control rods, and monitoring tubes. In such fluid-structure interaction problems, the fluid forces acting on the flexible structure play a vital role in defining its dynamics. Therefore, a precise calculation of the coefficients associated to these forces, such as the longitudinal and normal viscous force coefficients, and base drag coefficient in the equation of motion is imperative. The present work is aimed at (i) calculating these force coefficients for a cantilevered slender flexible cylinder, fitted with an ogival end-piece, in axial flow and (ii) conducting experiments on the same system. In the calculation of these force coefficients, the parameters of the experimental system are used, so that the theoretically predicted dynamics would be representative of the actual physical system. These calculated force coefficients are then incorporated in the linear and nonlinear equations of motion and the predicted dynamics are compared with those of the experiments. The comparison shows good agreement between the theoretical and experimental results.

LINEAR AND NONLINEAR DYNAMICS OF CANTILEVERED CYLINDERS IN AXIAL FLOW. PART 1: PHYSICAL DYNAMICS

2002 ◽  
Vol 16 (6) ◽  
pp. 691-713 ◽  
Author(s):  
M.P. PAÏDOUSSIS ◽  
E. GRINEVICH ◽  
D. ADAMOVIC ◽  
C. SEMLER
Keyword(s):  
Nonlinear Dynamics ◽  
Axial Flow ◽  
Flow Part ◽  
Linear And Nonlinear

The effect of sheared axial flow on the linear stability of the Z‐pinch

1996 ◽  
Vol 3 (2) ◽  
pp. 554-560 ◽  
Author(s):  
T. D. Arber ◽  
D. F. Howell
Keyword(s):  
Linear Stability ◽  
Axial Flow ◽  
Z Pinch
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