Torque and pressure fluctuations in turbulent von Karman swirling flow between two counter-rotating disks. I

2014 ◽  
Vol 26 (5) ◽  
pp. 055102 ◽  
Author(s):  
Yuri Burnishev ◽  
Victor Steinberg
Keyword(s):  
Swirling Flow ◽  
Pressure Fluctuations ◽  
Rotating Disks ◽  
Von Karman ◽  
Von Kármán

Nonlinear Vibration of Rotating Thin Disks

2000 ◽  
Vol 122 (4) ◽  
pp. 376-383 ◽  
Author(s):  
Albert C. J. Luo ◽  
C. D. Mote,
Keyword(s):  
Nonlinear Vibration ◽  
Natural Frequencies ◽  
Plate Theory ◽  
Nonlinear Effects ◽  
Linear Vibration ◽  
Rotating Disks ◽  
Nodal Diameter ◽  
Von Karman ◽  
Thin Disks ◽  
Von Kármán

The response and natural frequencies for the linear and nonlinear vibrations of rotating disks are given analytically through the new plate theory proposed by Luo in 1999. The results for the nonlinear vibration can reduce to the ones for the linear vibration when the nonlinear effects vanish and for the von Karman model when the nonlinear effects are modified. They are applicable to disks experiencing large-amplitude displacement or initial flatness and waviness. The natural frequencies for symmetric and asymmetric responses of a 3.5-inch diameter computer memory disk as an example are predicted through the linear theory, the von Karman theory and the new plate theory. The hardening of rotating disks occurs when nodal-diameter numbers are small and the softening of rotating disks occurs when nodal-diameter numbers become larger. The critical speeds of the softening disks decrease with increasing deflection amplitudes. [S0739-3717(00)02004-3]

scholarly journals A note on the non-inertial similarity solution for von Kármán swirling flow

2020 ◽  
pp. 2150030
Author(s):  
Madeleine L. Combrinck
Keyword(s):  
Boundary Layer ◽  
Partial Differential Equations ◽  
Differential Equations ◽  
Ordinary Differential Equations ◽  
Similarity Solution ◽  
Shooting Method ◽  
Swirling Flow ◽  
Boundary Layer Equations ◽  
Von Karman ◽  
Von Kármán

This note proposes a non-inertial similarity solution for the classic von Kármán swirling flow as perceived from the rotational frame. The solution is obtained by implementing non-inertial similarity parameters in the non-inertial boundary layer equations. This reduces the partial differential equations to a set of ordinary differential equations that is solved through an integration routine and shooting method.

scholarly journals KinematicαTensors and Dynamo Mechanisms in a von Kármán Swirling Flow

2012 ◽  
Vol 109 (2) ◽  
Author(s):  
F. Ravelet ◽  
B. Dubrulle ◽  
F. Daviaud ◽  
P.-A. Ratié
Keyword(s):  
Swirling Flow ◽  
Von Karman ◽  
Von Kármán

scholarly journals Elastic turbulence in von Karman swirling flow between two disks

2007 ◽  
Vol 19 (5) ◽  
pp. 053104 ◽  
Author(s):  
Teodor Burghelea ◽  
Enrico Segre ◽  
Victor Steinberg
Keyword(s):  
Swirling Flow ◽  
Von Karman ◽  
Von Kármán

scholarly journals Numerical and experimental study of the time-dependent states and the slow dynamics in a von Kármán swirling flow

2009 ◽  
Vol 103 (2-3) ◽  
pp. 163-177 ◽  
Author(s):  
E. Crespo Del Arco ◽  
J. J. Sánchez-Álvarez ◽  
E. Serre ◽  
A. De La Torre ◽  
J. Burguete
Keyword(s):  
Experimental Study ◽  
Swirling Flow ◽  
Time Dependent ◽  
Slow Dynamics ◽  
Von Karman ◽  
Von Kármán
Sign in / Sign up

Export Citation Format

Share Document