Planar gas flows with weak energy supply

Коган, М. Н.; Kucherov, A. N.; Mikhailov, V. V.; Fonarev, A. S.

doi:10.1007/bf01050235

Cited by 3 publications

(1 citation statement)

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“…The problem of plane (two-dimensional) flow about a thermal source has already been considered for the case of continuous [11] and pulse-periodic [12] radiation regimes. For a radiation wavelength equal to 10.6 #m (CO2 laser), at sea level under normal atmospheric conditions the absorption coefficient equals = 3.10 -4 m -1 and it decreases with increase in height and decrease in air density.…”

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Body motion in artificial thermal channels

Кузнецов¹,

Kucherov²,

Makashev³

et al. 2000

J Appl Mech Tech Phys

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The possibility of reducing the losses of kinetic energy of small bodies that fly with high velocity in the atmosphere by creating a thermal channel along the flight trajectory owing to electromagnetic-energy supply from external sources is studied. The amount of energy necessaw to change the ambient-medium parameters significantly is estimated, and an expression for the distribution of the temperature and density perturbations in the thermal wake of a systern of crossed Gaussian laser beams, which form a region of heat release with an intensity one order of magnitude greater than the intensity of separate beams is derived. The spatial problcm of the motion of a long solid body of revolution over a thermal channel is solved. The eJficiency of the proposed method of decreasing the losses of kinetic energy along the trajectory is shown.

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confidence: 99%