Mixing Within Patterned Vortex Core

• Main Authors: Abderrahmane, Hamid Ait, Fayed, Mohamed, Mandour, Amr, Kadem, Lyes, Vatistas, Georgios H., Ng, Hoi Dick
• Format: Report
• Language: unknown
• Published: arXiv 2009
• Subjects: Fluid Dynamics physics.flu-dyn; FOS Physical sciences; Antarctic; The Antarctic; Antarc*
• Online Access: https://dx.doi.org/10.48550/arxiv.0910.3228; https://arxiv.org/abs/0910.3228

The video shows the flow dynamics within inner and outer regions of a vortex core. The observed phenomena mimic a transport process occurring within the Antarctic vortex. The video shows two distinct regions: a strongly mixed core and broad ring of weakly mixed region extending out the vortex core boundaries. The two regions are separated by a thin layer that isolates the weakly and strongly mixed regions; this thin layer behaves as barrier to the mixing of the two regions. The video shows that the barriers deplete when a swirl of the vortex core increases and the vortex core espouses a triangular pattern. : 62nd Annual Meeting of the APS Division of Fluid Dynamics, Fluid Dynamics Video