Viscous linear stability analysis of rectangular duct and cavity flows

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

Three-dimensional linear stability analysis of cavity flows

Numerical Simulations of the twoand three-dimensional linearized Navier–Stokes equations are performed to investigate instabilities of open cavity flows that are homogeneous in the spanwise direction. First, the onset of two-dimensional cavity instability is characterized over a range of Mach numbers, Reynolds numbers and cavity aspect ratios. The resulting oscillations are consistent with the ...

متن کامل

Multigrid Approach to Incompressible Viscous Cavity Flows

A coe cients of linear system B, B intermediate source terms b source term of linear system C continuity equation error e, e error vectors f vector of dependent variables g source-term vector g discretized form of g h depth of cavity l width of cavity P relative pressure Re Reynolds number, Ul= r, r residual vectors s arc-length fraction s1 grid-clustering parameter t time U speed of upper (dri...

متن کامل

Stability of Rotating Viscous and Inviscid flows

Flow instability and turbulent transition can be well explained using a new proposed theory--Energy gradient theory [1]. In this theory, the stability of a flow depends on the relative magnitude of energy gradient in streamwise direction and that in transverse direction, if there is no work input. In this note, it is shown based on the energy gradient theory that inviscid nonuniform flow is uns...

متن کامل

Linear stability analysis of magnetohydrodynamic duct flows with perfectly conducting walls

The stability of magnetohydrodynamic flow in a duct with perfectly conducting walls is investigated in the presence of a homogeneous and constant static magnetic field. The temporal growth and spatial distribution of perturbations are obtained by solving iteratively the direct and adjoint governing equations with respect of perturbations, based on nonmodal stability theory. The effect of the ap...

متن کامل

Viscous symmetric stability of circular flows

The linear stability properties of viscous circular flows in a rotating environment are studied with respect to symmetric perturbations. Through the use of an effective energy or Lyapunov functional, we derive sufficient conditions for Lyapunov stability with respect to such perturbations. For circular flows with swirl velocity V (r) we find that Lyapunov stability is determined by the properti...

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: Journal of Fluid Mechanics

سال: 2004

ISSN: 0022-1120,1469-7645

DOI: 10.1017/s002211200400850x