The influence of noises with different spectra on viscous incompressible fluid flows

نویسندگان

چکیده

The results of an experimental study the effects noises on flows in a rotating spherical layer are presented. Noise is introduced into flow form random fluctuations inner sphere rotational rate relative to time constant mean value. velocity was measured with laser Doppler anemometer. It found that equal amplitude, but different spectra cause generation intensity. shown increase average velocities under action noise larger for stable compared unstable ones Keywords: noise, rotation, Couette flow.

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

Incompressible Viscous Flows

In this article, we describe some approaches to the eecient numerical computation of viscous incompressible ows governed by the Navier-Stokes equations. We concentrate on laminar ows, stationary as well as nonstationary, for Reynolds numbers of moderate size, and in general domains. The emphasis is on spatial discretization by the nite element method. We discuss the treatment of the incompressi...

متن کامل

On Spectra of Noises Associated with Harris Flows

A Harris flow is a stochastic flow on the real line given by SDE (2.1) below. We study the noise generated by Harris flows, particularly spectra of the noise. Our aim is to understand what lies beyond the finite order terms in the chaos expansion (the Wiener-Itô expansion) for nonstrong solutions of SDE (2.1). The notion of noises in continuous time (i.e., the case of time t ∈ R) has been intro...

متن کامل

the influence of corpus luteum on follicular fluid composition from different size follicles and their relationship to serum concentrations in sanjabi ewes

the aim of the present study was to determine the in?uence of presence or absence of corpus luteum (cl) on hormonal and metabolites composition of follicular ?uid (ff) harvested from different sized follicles and its relationship with blood serum concentrations in sanjabi ewes. ovaries and blood samples were collected from 60 clinically healthy adult ewes (sanjabi breed) 1–3 years of age in dio...

Computational Challenges of Viscous Incompressible Flows

Over the past thirty years, numerical methods and simulation tools for incompressible flows have been advanced as a subset of the computational fluid dynamics (CFD) discipline. Although incompressible flows are encountered in many areas of engineering, simulation of compressible flow has been the major driver for developing computational algorithms and tools. This is probably due to the rather ...

متن کامل

the influence of the neo-platonic concept of poetic imagination on wordsworth’s poetry

بر اساس نظریه افلاطون در باره شعر خلاقیت هنری مورد انتقاد قرار گرفته است. نظریه کلی در مورد شعر این بود که شعر از ظواهرتقلید میکند و نه حقیقت. چون سایه ای از حقیقت است. اما با پیدایش فلسفه نو افلاطونی، انتقاتات قبلی در مورد شعر و شاعری اصلاح شد. فلوطین در کتاب انئید، اساس خلق هنری را بر محور مُثل افلاطونی قرار داد. وی باور داشت که هنر مندان در خلق آثار هنری، تحت تاثیر مُثل افلاطونی بوده و عوالمی ...

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: Pis?ma v Žurnal tehni?eskoj fiziki

سال: 2023

ISSN: ['1726-7471', '0320-0116']

DOI: https://doi.org/10.21883/tpl.2023.04.55881.19506