Effect of eccentricity and inner pipe motion on flow instability for flow through annulus
نویسندگان
چکیده
Abstract Present work implements the Energy gradient method (EGM) to study effect of variation in eccentricity, radius ratio and inner pipe movement on fully developed flow Newtonian fluid through an annulus for instability. The formula stability parameter has been derived considering eccentricity annulus. Results have plotted (K) various ratio. Further, relationships critical also obtained. Flow instability is very crucial oil well drilling process as turbulent desirable transportation rock cuttings surface generated during process.
منابع مشابه
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چکیده ندارد.
15 صفحه اولStreak breakdown instability in pipe Poiseuille flow
This work is devoted to the study of the stability of Hagen–Poiseuille flow or pipe flow. The analysis is focused on the streak breakdown process by which two-dimensional streamwise-independent finite amplitude perturbations transiently modulate the basic flow leading to a profile that contains saddle points and is linearly unstable with respect to very small streamwise-dependent perturbations....
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ژورنال
عنوان ژورنال: SN applied sciences
سال: 2021
ISSN: ['2523-3971', '2523-3963']
DOI: https://doi.org/10.1007/s42452-021-04500-z