Related Experiment Video
Updated: Jun 14, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
Experimental investigation of the onset of instability in a radial Hele-Shaw cell
L M Martyushev1, A I Birzina, M S Konovalov
1Institute of Industrial Ecology, Russian Academy of Sciences, 20A S. Kovalevskaya Street, Ekaterinburg, Russia. leonidmartyushev@gmail.com
Abstract:
The initial stage of interface instability upon radial displacement of a fluid in a Hele-Shaw cell is investigated. An air-silicone oil system is analyzed. The critical radii of stability relative to long-wave perturbations are determined. It is found that, in the investigated range of parameters, instability most often begins by a translational mechanism. It is ascertained that in the overwhelming majority of cases the critical radii of instability are smaller than the values predicted by the linear stability theory and external effects make this difference even greater. The obtained results are discussed and compared with the existing theories.
More Related Videos
09:08Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering
Published on: February 6, 2014
09:20The Assembly and Application of 'Shear Rings': A Novel Endothelial Model for Orbital, Unidirectional and Periodic Fluid Flow and Shear Stress
Published on: October 31, 2016
Related Concept Videos
Microtubule Instability
Radial System Protection
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
Thin-Walled Hollow Shafts
Plastic Deformation in Circular Shafts
Pole and System Stability
Simple poles are unique roots of the denominator polynomial. Each simple pole corresponds to a distinct solution to the system's characteristic equation, typically resulting in exponential decay terms in the system's response.
Steady, Laminar Flow Between Parallel Plates