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Simulation and experimental studies on the evolution of a laser spark in air

  • X. C. Zeng (a1), D. P. Singh (a2), V. Palleschi (a2), A. Salvetti (a2), M. De Rosa (a2) and M. Vaselli (a2)...


Experimental and theoretical studies on the evolution of shock waves in air plasma induced by laser spark have been carried out. The systematic study of the shock wave has been performed experimentally and 1-D numerical code of radiation hydrodynamics (1-DRHC) has been used to simulate the later stage of laser spark in air. The numerical results on the propagation of shock waves and the expansion of hot plasma are presented and subsequent results on the first divergent and convergent shock waves are found to be in good agreement with the experimental data.



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