Stability of a horizontal vortex in weakly stratified flow

Name: Work Video:
Duration: 3 min 30 s
Description: A horizontal vortex in a moving stratified flow will have the density field overturn along the axis of the vortex. Gravity distorts this steady vortex, ultimately leading to three instabilities. The twirling and rolling instabilities are strong for small Froude number and small pitch. The streaming instability is strong for large pitch and is independent of Froude number.
John McHugh
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