Related Experiment Video
Updated: Jul 11, 2026

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
Published on: July 19, 2016
Deeply Penetrating Banded Zonal Flows in the Solar Convection Zone
Abstract:
Helioseismic observations have detected small temporal variations of the rotation rate below the solar surface that correspond to the so-called "torsional oscillations" known from Doppler measurements of the surface. These appear as bands of slower- and faster-than-average rotation moving equatorward. Here we establish, using complementary helioseismic observations over 4 yr from the GONG network and from the MDI instrument on board SOHO, that the banded flows are not merely a near-surface phenomenon: rather, they extend downward at least 60 Mm (some 8% of the total solar radius) and thus are evident over a significant fraction of the nearly 200 Mm depth of the solar convection zone.
Related Concept Videos
Magnetic Field Lines
Magnetic field lines follow several hard-and-fast rules:
Magnetostatic Boundary Conditions
Irrotational Flow
Plane Potential Flows
Uniform Flow
Uniform flow...
Couette Flow
General External Flow Characteristics

