Next Article in Journal
Local Stability Analysis of a Thermo-Economic Model of a Chambadal-Novikov-Curzon-Ahlborn Heat Engine
Next Article in Special Issue
Entropy Generation Analysis of Desalination Technologies
Previous Article in Journal
Phase-Controlled Atom-Photon Entanglement in a Three-Level V-Type Atomic System via Spontaneously Generated Coherence
Previous Article in Special Issue
Second Law Analysis for Variable Viscosity Hydromagnetic Boundary Layer Flow with Thermal Radiation and Newtonian Heating
Article Menu

Article Versions

Export Article

Open AccessArticle
Entropy 2011, 13(9), 1555-1583; doi:10.3390/e13091555

Spectral Entropy in a Boundary-Layer Flow

Professor Emeritus of Mechanical Engineering, University of Utah, 2067 Browning Avenue, Salt Lake City, UT 84108, USA
Received: 15 July 2011 / Revised: 20 August 2011 / Accepted: 23 August 2011 / Published: 26 August 2011
(This article belongs to the Special Issue Entropy Generation Minimization)
View Full-Text   |   Download PDF [2206 KB, uploaded 24 February 2015]   |  

Abstract

This article presents a comparison of the entropy production in a laminar and transitional boundary layer flow with the spectral entropy produced in a region of instability induced by an imposed periodic disturbance. The objective of the study is exploratory in nature by computing a boundary-layer environment with well-established computer techniques and comparing the predictions of the maximum rate of entropy production in the wall shear layer with the deterministic prediction of the spectral entropy growth within an inceptive instability in the inner region of the upstream boundary-layer flow. The deterministic values of the spectral entropy within the instability are brought into agreement with the computed rate of entropy production inversely along the shear flow with the assumption that the instability is of a span-wise vortex form and that the spectral entropy components are transported into the wall shear layer by vortex down sweep and are processed into thermodynamic entropy in the boundary-layer wall region. View Full-Text
Keywords: boundary-layer computations; boundary layer entropy production; induced flow instabilities; spectral entropy; vortex-induced down sweep boundary-layer computations; boundary layer entropy production; induced flow instabilities; spectral entropy; vortex-induced down sweep
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Isaacson, L.K. Spectral Entropy in a Boundary-Layer Flow. Entropy 2011, 13, 1555-1583.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top