INFLUENCE ON PULSING BLOOD OF ANIMALS BY OWN AND EXTERNAL ELECTROMAGNETIC FIELDS
Abstract
A theoretical model of blood flow in large blood vessels of animals is considered, which takes into account the effect of electromagnetic fields on the formed elements of the blood, both those created by the bloodstream itself and those existing in the environment. Blood vessels are presented in the form of uniform cylindrical channels with rigid walls, and blood ‑ in the form of Newtonian fluid. The solution of the Navier-Stokes equation is carried out under the assumption that the pressure pulsations have the shape of rectangular pulses. To account for the additional effects on the blood flow of an external electromagnetic field, a term was added to the equation that describes its effect on the charge and flow of blood. It is shown that the main contribution to this effect is made by the magnetic component of the field. The nature of the behavior of the radial component of the blood flow velocity appearing in this case, as well as the change of its longitudinal component, is investigated. It is shown that the radial component of velocity has a complex amplitude. The approximation of the frequency of the incident electromagnetic field to the frequency of pressure pulsations leads to a sharp increase in the radial component and the possible sedimentation of blood corpuscles on the vessel walls. Simultaneously with the appearance of the radial component of the blood, the longitudinal component also changes. Numerical analysis of the dependence of the longitudinal and radial components of the blood flow showed their substantial dependence on the frequency of the external electromagnetic field, which has a resonant character. The increase in velocity occurred at frequencies equal to the frequency of the pulsations of the blood flow or its harmonics. At the same time, there is an assumption that the same effect can be expected if the blood is affected by a microwave field modulated by ultra-low frequencies, which is possible, given the ability of blood in the vessels to perform the detection function.
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