Answer to Question #127987 in Physical Chemistry for Suga

Question

Consider a discrete fluid-solid mechanical system (for instance a wing profile with two degrees of freedom). Solutions of the form V⃗ eλt are looked for, V⃗ being a two components vector. On the figure below the real and imaginary parts of λ are plotted as function of the Cauchy number. Give an estimate of the critical value of the Cauchy number at which an instability occurs.

Answer 1

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