Nonlocal theory of stimulated Raman backscattering in a strongly magnetized plasma

A nonlocal theory of stimulated Raman backscattering (BSRS) parametric instability of a large amplitude electromagnetic (EM) mode in a strongly magnetized plasma e.g., one encountered in a plasma filled backward wave oscillator, is reported. The EM mode is unstable to parametric instability in a magnetized plasma and decays into a Trivelpiece-Gould (TG) mode and a sideband EM mode. The growth rate of instability (Γ) scales proportional to three-fourth power of plasma density. For a typical BWO the growth rate is ∼108 s-

A fully implicit combined field scheme for freely vibrating square cylinders with sharp and rounded corners

10.1016/j.compfluid.2015.02.002Computers and Fluids1121-1

The boundary layer development and traveling wave mechanisms during flapping of a flexible foil

10.1016/j.jfluidstructs.2015.01.013Journal of Fluids and Structures54784-80