2019/01/05 by Awanish Pratap Singh, Singh, A. P., Upasana Priyadarshani Padhi +3
Engineering · Physics and Astronomy · #Applied Physics (physics.app-ph) #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Laser-Plasma Interactions and Diagnostics #Laser-induced spectroscopy and plasma #Optics (physics.optics) #Particle Dynamics in Fluid Flows #Plasma Physics (physics.plasm-ph)
paper · pdf · doi:10.48550/arxiv.1901.11377
openalex publication_date 2019/01/05 · openalex created_date 2019/02/21 · openalex updated_date 2026/07/28
Laser-induced breakdown has shown many potential applications in the various field of science and engineering. As the breakdown occurs in gas or aerosol, a rapid hydrodynamic expansion as shock (blast) wave initiated from the deposition location. The nature of the shock wave is one of the controlling factors in many physical processes; unfortunately, its nature has still not been clearly understood. In this study, an error was found during the calculation of shock wave properties with the classical non-relativistic approach. The error in calculation was due to the initial relativistic propagation of high-temperature plasma. Initially, the plasma and shock wave travel together with higher acceleration up to the point of inflation, and in later time shockwave dissociate itself from the plasma. However, this accelerating effect is neglected in the earlier studies. To address the spontaneous accelerating and deaccelerating nature of the shock wave, the theoretical details of the relativistic approach of shock wave propagation is presented.