Study of velocity and shear stress for unsteady flow of incompressible Oldroyd-B fluid between two concentric rotating circular cylinders

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Starting Flow of an Oldroyd-b Fluid between Rotating Co-axial Cylinders

Analytical solutions corresponding to the starting flow of an Oldroyd-B fluid between rotating cylinders are established. If the radius of the inner cylinder tends to zero the flow within a circular cylinder is obtained. The well-known solutions for a Navier-Stokes fluid, as well as those corresponding to a Maxwell fluid and to a second grade one, appear as limiting cases of our solutions. The ...

متن کامل

Numerical Studies of Viscous Incompressible Flow between Two Rotating Concentric Spheres

The problem of determining the induced steady axially symmetric motion of an incompressible viscous fluid confined between two concentric spheres, with the outer sphere rotating with constant angular velocity and the inner sphere fixed, is numerically investigated for large Reynolds number. The governing Navier-Stokes equations expressed in terms of a stream function-vorticity formulation are r...

متن کامل

Couette flow of two fluids between concentric cylinders

We consider the flow of two immiscible fluids lying between concentric cylinders when the outer cylinder is fixed and the inner one rotates. The interface is assumed to be concentric with the cylinders, and gravitational effects are neglected. We present a numerical study of the effect of different viscosities, different densities and surface tension on the linear stability of the Couette flow....

متن کامل

Turbulent flow between counter-rotating concentric cylinders: a direct numerical simulation study

We report three-dimensional direct numerical simulations of the turbulent flow between counter-rotating concentric cylinders with a radius ratio 0.5. The innerand outer-cylinder Reynolds numbers have the same magnitude, which ranges from 500 to 4000 in the simulations. We show that with the increase of Reynolds number, the prevailing structures in the flow are azimuthal vortices with scales muc...

متن کامل

Rotating concentric circular peakons

We study circularly symmetric solution behaviour of invariant manifolds of singular solutions of the partial differential equation EPDiff for geodesic flow of a pressureless fluid whose kinetic energy is the H 1 norm of the fluid velocity. These singular solutions describe interaction dynamics on lower-dimensional support sets, for example, curves, or filaments, of momentum in the plane. The 2 ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Hacettepe Journal of Mathematics and Statistics

سال: 2019

ISSN: 2651-477X

DOI: 10.15672/hujms.545240