On the stability of a Bingham fluid flow in an annular channelSur la stabilité de l'écoulement d'un fluide de Bingham dans une conduite annulaire |
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Authors: | Nadjiba Kabouya Chérif Nouar |
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Institution: | LEMTA UMR 7563 (CNRS–INPL–UHP), INPL, ENSEM, 2, avenue de la Forêt de Haye, BP 160, 54504 Vandoeuvre-lès-Nancy, France |
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Abstract: | Linear stability of a fully developed Bingham fluid flow between two coaxial cylinders subject to infinitesimal axisymetric perturbations is investigated. The analysis leads to two uncoupled Orr–Sommerfeld equations with appropriate boundary conditions. The numerical solution is obtained using fourth order finite difference scheme. The computations were performed for various plug flow dimensions and radii ratios. Within the range of the parameters considered in this paper, the Poiseuille flow of Bingham fluid is found to be linearly stable. To cite this article: N. Kabouya, C. Nouar, C. R. Mecanique 331 (2003). |
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Keywords: | Fluid mechanics Linear stability Bingham fluid Mécanique des fluides Stabilité linéaire Fluide de Bingham |
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