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The Behavior of Bubble and Particle, Pulsatile and Peristaltic Flow

Abstract : The thesis studies the peristaltic flow of fluid in a channel with the specified pressure wave at the boundary. The law of wall’s coordinate variation isn’t determined a priori. It is found from the initially definite law of pressure-variation on the wall. This way is based on the fact that some hollow organs change diameter under the signals of baroreceptors (sensors that detects the pressure). We studied the effects of various parameters on flow rate and structure of flow. Besides we studied the influence of vibration on the peristaltic flow under long wave approximation. The paper also considers the influence of the wall transverse pulsation on the fluid transport under the pressure drop. This problem arises in defining the liquid viscosity by squeezing flow viscometry. The same problems occur in analyzing different biological systems, including the lubricant movement in joints or in the microvessels of working muscles. The influence of sound on the interaction of a solid particle and a gas bubble in fluid is studied as well.
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Submitted on : Friday, March 30, 2018 - 9:56:13 AM
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  • HAL Id : tel-01754647, version 1


Stanislav Mingalev. The Behavior of Bubble and Particle, Pulsatile and Peristaltic Flow. Earth Sciences. Université de Lorraine, 2013. English. ⟨NNT : 2013LORR0361⟩. ⟨tel-01754647⟩



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