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This article is cited in 7 scientific papers (total in 7 papers)
Interaction of laser radiation with matter. Laser plasma
Energy transfer in a volume-structured medium
S. V. Bondarenko, S. G. Garanin, G. A. Kirillov, Yu. F. Kir'yanov, G. G. Kochemasov Federal State Unitary Enterprise "Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics", Sarov, Nizhny Novgorod region
Abstract:
A study was made of the physical properties of the so-called foam – a low-density (the average density is ~1 μg cm-3) microstructured medium. Foams of different type were classified according to the specific features of their internal structure. The propagation of high-power laser radiation through these media was considered and the relationships for the depth of radiation penetration for differently structured foams were obtained. Based on a self-similar solution describing the expansion of a film (filament) with its simultaneous heating by the law T = Atα, a model of the heat propagation through a porous medium was proposed and a relationship for the hydrothermal wave velocity νht=[4K/α(α+2)]1/2cT was obtained (cT is the isothermal sound velocity in the bulk of the heated material and K is a constant determined in the context of the model). The hydrothermal wave velocity was shown to be substantially determined by the processes occurring on a foam microstructure scale. The velocity dependence on the parameters of these processes was analysed within the framework of the proposed model.
Received: 13.03.2000
Citation:
S. V. Bondarenko, S. G. Garanin, G. A. Kirillov, Yu. F. Kir'yanov, G. G. Kochemasov, “Energy transfer in a volume-structured medium”, Kvantovaya Elektronika, 31:1 (2001), 39–44 [Quantum Electron., 31:1 (2001), 39–44]
Linking options:
https://www.mathnet.ru/eng/qe1888 https://www.mathnet.ru/eng/qe/v31/i1/p39
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