Heating of a Half-Space by a Moving Thermal Laser Pulse Source

Orekhov, Alexander A.; Rabinskiy, Lev N.; Fedotenkov, G. V.; Hein, Thant Zin

doi:10.1134/s1995080221080229

Cited by 25 publications

(2 citation statements)

References 11 publications

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“…The formula for the analytical inversion of the two-dimensional integral Fourier transform for Equation ( 23) can be constructed using the connection of the integral Fourier transform with the Fourier series on a variable interval [40][41][42][43][44][45][46]:…”

Section: The Surface Spatial Transient Functionmentioning

confidence: 99%

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Conductive Heat Transfer in Materials under Intense Heat Flows

2022

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The paper presents the solution of the spatial transient problem of the impact of a moving heat flux source induced by the laser radiation on the surface of a half-space using the superposition principle and the method of transient functions. The hyperbolic equation of transient thermal conductivity accounting for the relaxation time is used to model the laser heating process. It is assumed that the heat flux is distributed symmetrically with respect to the center of the heating spot. The combined numerical and analytical algorithm has been developed and implemented, which allows one to determine the temperature distribution both on the surface and on the depth of the half-space. In this case, the principle of superposition is used with the use of a special symmetric Gaussian distribution to describe the model of a source of high-intensity heat flux. The use of such a symmetric distribution made it possible to calculate the integrals over the spatial variables analytically. The results of the work could be used to estimate the contribution of the conductive component in the overall heat transfer of materials exposed to intense heat flows (laser surface treatment, laser additive technologies, streamlining and heating of materials by high-enthalpy gases, etc.).

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Section: The Surface Spatial Transient Functionmentioning

confidence: 99%

“…By selecting one or another value of the standard deviation, you can adjust the radius of the heating spot carrier [44,45].…”

Section: Symmetric Model Of a Laser Pulse Sourcementioning

confidence: 99%

Conductive Heat Transfer in Materials under Intense Heat Flows

2022

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Aerodynamic calculation of wind impact on mobile radar antenna design

Solomatin,

Shumskaia

2023

E3S Web of Conf.

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In this work, the aerodynamic strength calculation of the radar station was carried out in 37 design cases in which the direction of the wind flow and the position of the antenna panel relative to the vehicle were varied. The vehicle and container were considered exclusively in the aerodynamic calculation for the calculation of air masses. For the most stressed cases, the static calculation was carried out and the critical stresses of the whole structure under study and the antenna panel structure separately were determined.

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