Fragmentation, rather than ablation, is the dominant mechanism of mass loss. Here Rayleigh–Taylor (Hydrodynamic )instability occurs at the interface between two fluids of different densities, lighter fluid is pushing the heavier fluid.
Meteoroid Trajectory equation:
Cd is the drag coefficient of meteoroid, ρ is atmospheric density, A is the cross-sectional area, m is the mass of the impactor, g(z) gravitational acceleration
Mass ablation: It is the process by which an object moving through an atmosphere loses material due to intense heat and pressure.
.
ξ is the energy required to heat the surface, Ch heat transfer coefficient.
Fragmentation may occur either when the stagnation pressure of the atmospheric flow exceeds the material’s compressive strength.
source:
https://arxiv.org/html/2503.22632v1
0 comments:
Post a Comment