MATHEMATICAL-MODELS OF SUBSONIC LAVAL NOZZLES OF LASER-PLASMA ACCELERATORS

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作者：
SURZHIKOV, ST
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来源：
HIGH TEMPERATURE | 1995年 / 33卷 / 03期
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O59 [应用物理学];
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摘要：
The paper deals with two-dimensional mathematical models of radiation-gasdynamic processes in Laval nozzles of laser-plasma accelerators. One of the models is based on the solution of Navier-Stokes equations for subsonic compressible flows in the ''velocity-pressure'' variables. The other model involves the use of dynamic variables. The finite-difference schemes are constructed on the basis of equations written in the conservative form in nonorthogonal coordinates. The results are presented of calculations of the thermogasdynamic structure of atmospheric-pressure air flows under conditions of their local heating by focused radiation of a continuous CO2 laser. Analysis is made of radiation-gasdynamic processes for different values of laser power, flow velocity, and nozzle size.
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页码：435 / 448
页数：14
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