Two dimensional turbulent diffusion calculations for application to atmospheric laser propagation

Details Two dimensional turbulent diffusion calculations for application to atmospheric laser propagation Two dimensional turbulent diffusion calculations for application to atmospheric laser propagation

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1221..241y&link_type=abstract

IN: Propagation of high-energy laser beams through the earth's atmosphere; Proceedings of the Meeting, Los Angeles, CA, Jan. 15-

Physics

Optics

Atmospheric Optics, Atmospheric Turbulence, High Power Lasers, Light Transmission, Thermal Blooming, Turbulent Diffusion, Autocorrelation, Computerized Simulation, Navier-Stokes Equation, Wave Functions

Scientific paper

High power laser propagation through the turbulent atmospheric is difficult due to thermal blooming effects. Current atmospheric turbulence models assume that the turbulent structure is transported across the laser beam diameter at the mean wind speed. This frozen turbulence model is valid if the laser length is short compared to the characteristic time scale associated with the evolution of the turbulence. However, for laser systems with very long inter-pulse spacing, the turbulent structure may have sufficient time to evolve dynamically between laser pulses. The turbulent structure early in the pulse train may be quite different from the turbulent structure late in the pulse train. In this study, the results from a two dimensional code used to model the time evolution of atmospheric turbulence are presented. Calculations of the turbulent diffusion and the auto-correlation time of the turbulence as a function of eddy size and velocity structure constant are also given.

Affiliated with

Also associated with

No associations

Rating

Two dimensional turbulent diffusion calculations for application to atmospheric laser propagation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Two dimensional turbulent diffusion calculations for application to atmospheric laser propagation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two dimensional turbulent diffusion calculations for application to atmospheric laser propagation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-784647