Choosing computing parameters in the numerical simulation of thermal blooming effects

huang yin-bo; wang ying-jian

Volume 17 Issue 01

Jan. 2005

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huang yin-bo, wang ying-jian. Choosing computing parameters in the numerical simulation of thermal blooming effects[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

huang yin-bo, wang ying-jian. Choosing computing parameters in the numerical simulation of thermal blooming effects[J]. High Power Laser and Particle Beams, 2005, 17.

huang yin-bo, wang ying-jian. Choosing computing parameters in the numerical simulation of thermal blooming effects[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

huang yin-bo, wang ying-jian. Choosing computing parameters in the numerical simulation of thermal blooming effects[J]. High Power Laser and Particle Beams, 2005, 17.

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Choosing computing parameters in the numerical simulation of thermal blooming effects

1.
Center for Atmospheric Optics,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,P.O.Box 1125,Hefei 230031,China

Publish Date: 2005-01-15

Abstract

Abstract

In the numerical simulation of thermal blooming effects, how to choose the grid spacing and other computing parameters correctly is introduced. Based on the sample principles of numerical calculation, the choice of computing parameters is analyzed. Combining the blooming distortion phase distribution for a Gaussian beam and a uniform irradiance circular beam, the relation between the grid spacing and Bradley-Hermann distortion number is deduce. The correct grid spacing could be chosen from the value of the thermal distortion number. In addiaion, we can correctly evaluate the effects of laser propagation in the neal atmosphere from the numerical results. The results show that the difference of the numerical results with same grid numbers and different grid spacing is relatively big. Moreove
- thermal blooming effect,
- numerical simulation,
- computing parameters,
- grid spacing

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