Predicting Entropy Generation Rates in Transitional Boundary Layers Based on Intermittency
Journal of Turbomachinery, 2006 Prediction of thermodynamic loss in transitional boundary layers is typically based on time-averaged data only. This approach effectively ignores the intermittent nature of the transition region. In this work laminar and turbulent conditionally sampled boundary layer data for zero pressure gradient and accelerating transitional boundary layers have ...
Nolan, K +3 more
openaire +3 more sources
Assessment of Entropy Generation Rate as a Predictor of Continuum Breakdown [PDF]
36th AIAA Thermophysics Conference, 2003 Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/77391/1/AIAA-2003-3783-821 ...
Chen, Po-Heng +2 more
openaire +1 more source
Entropy generation in condensation in the presence of high concentrations of noncondensable gases [PDF]
, 2012 The physical mechanisms of entropy generation in a condenser with high fractions of noncondensable gases are examined using scaling and boundary layer techniques, with the aim of defining a criterion for minimum entropy generation rate that is useful in ...
Lienhard, John H., Thiel, Gregory Parker
core +1 more source
Case Studies in Thermal Engineering, 2021 Background and objective: Here irreversibility analysis in unsteady Darcy-Forchheimer flow of viscous fluid by a stretched sheet is examined. Lorentz force effect is considered.
Sohail A. Khan, T. Hayat, A. Alsaedi
doaj +1 more source
Entropy generation for forced convection in a porous channel with isoflux or isothermal walls [PDF]
, 2008 A numerical study is reported to investigate the entropy generation due to forced convection in a parallel plate channel filled by a saturated porous medium.
Hooman, Faegheh +2 more
core +1 more source
Challenges and progress on the modelling of entropy generation in porous media: a review [PDF]
, 2017 Depending upon the ultimate design, the use of porous media in thermal and chemical systems can provide significant operational advantages, including helping to maintain a uniform temperature distribution, increasing the heat transfer rate, controlling ...
Karimi, Nader +3 more
core +1 more source
Optimal behavior of viscoelastic flow at resonant frequencies
, 2004 The global entropy generation rate in the zero-mean oscillatory flow of a Maxwell fluid in a pipe is analyzed with the aim at determining its behavior at resonant flow conditions.
A. A. Lambert +15 more
core +1 more source
Heat transfer and second law analyses of forced convection in a channel partially filled by porous media and featuring internal heat sources [PDF]
, 2015 This paper provides a comprehensive study on the heat transfer and entropy generation rates in a channel partially filled with a porous medium and under constant wall heat flux.
Karimi, Nader +2 more
core +1 more source
A mathematical model for entropy generation in a Powell-Eyring nanofluid flow in a porous channel
Heliyon, 2019 The continuous generation of entropy leads to exergy destruction which reduces the performance of a physical system. Hence, entropy minimization becomes necessary.
Hammed Abiodun Ogunseye +1 more
doaj +1 more source
Entropy generation for forced convection in a porous saturated circular tube with uniform wall temperature [PDF]
, 2007 A numerical study is reported to investigate both the First and the Second Law of Thermodynamics for thermally developing forced convection in a circular tube filled by a saturated porous medium, with uniform wall temperature, and with the effects of ...
Ejlali, A., Hooman, K.
core +1 more source