Numerical solution of atmospheric laser beam propagation using artificial compressibility and pseudo-spectral methods
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2022
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SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE
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In order to analyze the thermal blooming on wireless power transmission and remote recharge of batteries this study proposes a coupled numerical solution. The Navier-Stokes, energy and paraxial equations to the laser beam propagation through the atmosphere are solved by artificial compressibility and pseudo-spectral methods. Changes in the refractive index due to asymmetric temperature variations are the cause of this optical phenomenon. Numerical results are compared with reference studies and a good agreement is obtained. The conditions: laser beam, power density and absorptivity are constants; flow regime of Re=1000,Ri=10.e4, laser wavenumber k=10.e5, and Stanton number St=1/30.
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MORAIS, PAULO J.D. de; SILVA, RUBENS C. da; ROSSI, WAGNER de; MOTTA, CLAUDIO C. Numerical solution of atmospheric laser beam propagation using artificial compressibility and pseudo-spectral methods. In: SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE, October 13-15, 2022, Recife, PE. Proceedings... Piscataway, NJ, USA: IEEE, 2022. DOI: 10.1109/SBFotonIOPC54450.2022.9992726. Disponível em: http://repositorio.ipen.br/handle/123456789/33664. Acesso em: 30 Dec 2025.
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