Effect of Weak Elasticity on the Kelvin-Helmholtz Instability

Key Points

• The analysis shows significant modifications in the growth rate of the Kelvin-Helmholtz instability under weak elasticity.
• Notably, elastic effects altered the critical wavenumber, impacting fluid behavior at interfaces.
• Analysis focused on perturbations across fluid layers with varying elastic properties, indicating sensitivity to elasticity.
• Support for these findings may enable better predictions in fluid dynamics, although experimental validation is necessary.