3 papers
physics.comp-ph2026
A sharp-diffuse interface model for intermittent and isolated topological transitions
Raaghav Ramani
We propose a hybrid sharp-diffuse interface representation for modeling intermittent and isolated topological transitions during Cahn-Hilliard phase coarsening. Away from topologic…
physics.flu-dyn2026
Interface tracking with Microscale Topological Surgery for two-dimensional filament breakup
Raaghav Ramani
We design and implement a Microscale Topological Surgery (MTS) algorithm to detect and enforce topological transitions in two-dimensional tracked interfaces. The method combines cl…
math.NA2026
A boundary integral method for wave scattering in a heterogeneous medium with a moving obstacle
Raaghav Ramani
We propose a time-domain boundary integral method to model linear wave propagation with refractive, focusing, and Doppler effects arising from medium heterogeneities and moving obs…