Dynamical eigenfunction decomposition of turbulent channel flow

نویسندگان
چکیده

برای دانلود رایگان 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

Dynamical Eigenfunction Decomposition of Turbulent Pipe Flow

The results of an analysis of turbulent pipe flow based on a Karhunen-Loève decomposition are presented. The turbulent flow is generated by a direct numerical simulation of the Navier-Stokes equations using a spectral element algorithm at a Reynolds number Reτ = 150. This simulation yields a set of basis functions that captures 90% of the energy after 2,453 modes. The eigenfunctions are categor...

متن کامل

A low-order decomposition of turbulent channel flow A low-order decomposition of turbulent channel flow via resolvent analysis and convex optimization

A low-order decomposition of turbulent channel flow via resolvent analysis and convex optimization R. Moarref, a) M. R. Jovanović, J. A. Tropp, A. S. Sharma, and B. J. McKeon Graduate Aerospace Laboratories, California Institute of Technology, Pasadena, CA 91125, USA Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455, USA Computing & Mathematical Sciences, Calif...

متن کامل

Numerical study of turbulent forced convection jet flow of nanofluid in a converging sinusoidal channel

Research in convective heat transfer using suspensions of nanometer-sized solid particles in base liquids started only over the past decade. Recent investigations on nanofluid, as such suspensions are often called, indicate that the suspended nanoparticles remarkably change the transport properties and heat transfer characteristics of the suspension. Bending walls can also improve heat transfer...

متن کامل

Numerical simulation of pulsating turbulent channel flow

Direct and large-eddy simulations of the Navier–Stokes equations are used to study the pulsating flow in a channel. The cases examined span a wide range of frequencies of the driving pressure gradient, and encompass different physical behaviors, from the quasi-Stokes flow observed at high frequencies, to a quasisteady behavior at the lowest ones. The validity of the dynamic Smagorinsky model to...

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: International Journal for Numerical Methods in Fluids

سال: 1991

ISSN: 0271-2091,1097-0363

DOI: 10.1002/fld.1650120606