In this paper, we study the linear stability of a two-dimensional shear flow an air layer overriding water finite depth. The is considered to be infinite extent with exponential velocity profile. Three different background conditions are in finite-depth layer: quiescent background, profile and quadratic It known that cases allow for analytical treatment. We further provide solution case field: ...

Employing a linear shallow water equation (LSWE) model in the spherical coordinates, this paper investigates tsunami waves generated by atmospheric pressure shock due to explosion of submarine volcano Hunga Tonga–Hunga Ha'apai on 15 January 2022. Using selected 59 records Pacific Ocean, an empirical is first constructed. Applying and realistic bathymetric data LSWE model, generation propagation...

Collapsing waves were observed numerically before and were used to explain the ring formations in dynamic flows involving phase transitions with metastability. In this paper, necessary and sufficient conditions for collapsing type of waves to exist are given. The conditions are that the wave speed of the collapsing wave is not less than a number and is supersonic on both sides of the wave. Exis...

Core-collapse supernovae are among the prime candidate sources of high energy neutrinos and gravity waves. The detection prospects for neutrinos and gravity waves can be greatly enhanced through cross-correlation with the well established optical photon signal. The significance of the correlation improves with the resolution on the supernova explosion time determined from the optical data. We p...

Explosions will, in most cases, generate blast waves. While simple models (e.g., Multi Energy Method) are useful for simple explosion geometries, most practical explosions are far from trivial and require detailed analyses. For a reliable estimate of the blast from a gas explosion it is necessary to know the explosion strength. The source explosion may not be symmetric; the pressure waves will ...