The analysis of the process tending towards equilibrium in transitional and turbulent wall flows

Journal Title: INCAS BULLETIN - Year 2010, Vol 2, Issue 2

Abstract

Starting from the integro-differential formulation (IDF) [1], [2] of the basic conservation equations in wall flows, the authors perform a qualitative analysis of the microscopic-macroscopic domain. According to IDF, the kinetical energy presents a mean distribution and a lot of similar terms called FLUONS. Their various combinations lead to physical fluctuations and their dynamical equilibrium concerns the existence of an associated distribution of the kinetical energy, which is a solution of IDF. The global contributions of the fluctuations are, therefore, estimated as analytical formulae for the wall flows. The experiments confirm these results.

Authors and Affiliations

Ştefan SĂVULESCU, Florin BALTARETU

Keywords

Related Articles

Frequency Analysis of Uncertain System

This paper is dedicated to the study and analysis of a successfully designed control system, whose capability should always maintain the stability and performance level in spite of the uncertainties in system dynamics an...

Blood flow-vessel interaction in a subclavian aneurysm

This paper presents a mathematical mode and numerical simulation results of the blood flow-structural interaction, which occurs in a saccular aneurysm emerging out of the left subclavian artery, using computational domai...

Selection of temperature and power parameters for multi-modular lunar jet penetrator

The questions and the particularity of the choice of design parameters of multi-module lunar jet penetrators are considered. A constructive layout of the penetrator is proposed and the advantages of a multi-modular desig...

A Practical Method to Estimate the Aerodynamic Coefficients of a Small-Scale Paramotor

There are few aircraft other than lighter-than-air vehicles that have the payload carrying capability, short field take-off, and slow speed ranges afforded by a powered parafoil. One very interesting aspect of the powere...

Importance of a second entrance in a test cell

The present paper studies the influence of a secondary intake and its effect on the jet stability. Three configurations have been analyzed: one with the secondary intake closed, the second having a convergent nozzle afte...

Download PDF file
  • EP ID EP97338
  • DOI 10.13111/2066-8201.2010.2.2.14
  • Views 83
  • Downloads 0

How To Cite

Ştefan SĂVULESCU, Florin BALTARETU (2010). The analysis of the process tending towards equilibrium in transitional and turbulent wall flows. INCAS BULLETIN, 2(2), 100-113. https://europub.co.uk/articles/-A-97338