Retrieving "Outer Core Flow" from the archives

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1. Viscous Decoupling

   Linked via "core flow"

   Conceptual Challenges and Criticisms
   Viscous decoupling remains a heuristic concept, challenged primarily by the difficulty in measuring the required parameters ($e.g., \tau_y$ at GPa pressures). Critics argue that the observed phenomena attributed to decoupling (such as non-uniform core flow) could be entirely explained by standard thermal convection models if non-linear coupling terms are integrated more thoroughly.
   Furthermore, the existence of a…