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The evolution of isotropic, nondispersive, inertial wave, emerging from anunsteady initial coherent vortex is studied for strongly correlated Yukawamedium using 2D molecular dynamics simulation. In this study, the effect ofazimuthal speed of vortex source, strong correlation, large screening and thecompressibility of the medium over the propagation of generated inertial wavehave been presented. It has been observed that these inertial waves only existwhen the speed of the vortex source (U_0) is larger or equal to thelongitudinal sound speed of the system. Estimated speed of the nonlinear wave(C_NLW ) is found to be always larger than the transverse sound speed (C_t ) ofthe system for the range of coupling and screening parameters. In this study,we find that spontaneously generated nonlinear inertial wave speed in Yukawamedium is suppressed by compressibility and dust-neutral a drag of the systemand is less sensitive to coupling strength. A transition from incompressible tocompressible Yukawa liquid is observed. This transition depends on thescreening parameter and azimuthal speed of vortex source. The existence of acritical Mach number Mc~0.35 is found above which nonlinear wave is found toexists, indicating the compressible nature of the medium.

Emergence of inertial waves from coherent vortex source in Yukawa medium