Results 81 to 90 of about 9,963,654 (229)

Discussion of Polyethylene Glycol Mixtures and PEG + MWCNT Nanocolloids’ Behavior in Thermal Applications

Applied Sciences
Nanocolloids are nanoparticles suspended in fluids with the aim of improving fluid capability at heat transfer, with a focus on thermal conductivity. The major advantage is the increase in thermal conductivity, with a certain influence on isobaric heat ...
Alina Adriana Minea, Elena Ionela Chereches, Catalin Andrei Tugui, George Catalin Tofan   +3 more
doaj   +1 more source

Entropy Generation Analysis of Unsteady Magnetohydrodynamic Buoyancy‐Driven Nanofluid Flow in a Porous Vertical Channel With Thermal Radiation and Chemical Reaction

Energy Science &Engineering, EarlyView.
An unsteady, laminar, incompressible flow of an electrically conducting viscous nanofluid between two infinite vertical porous plates separated by a distance b $b$ is considered. The flow is driven by buoyancy forces arising from temperature and concentration differences.
Odeli J. Kigodi, Evaline W. Ugulumu, Muhammad Faisal, Wubshet Ibrahim, Irfan A. Badruddin, Sarfaraz Kamangar   +5 more
wiley   +1 more source

Ergebnisse der Aerodynamischen Versuchsanstalt zu Göttingen - I. Lieferung

, 2009
Mit der Berufung Ludwig Prandtls als Professor für Angewandte Mechanik wurde die kleine Universitätsstadt Göttingen im Jahr 1904 zur Wiege der modernen Strömungsmechanik und Aerodynamik.
Wieselsberger, Carl, Betz, Albert, Prandtl, Ludwig   +2 more
core   +2 more sources

A Numerical Study on Entropy Generation in Two-Dimensional Rayleigh-Bénard Convection at Different Prandtl Number

Entropy, 2017
Entropy generation in two-dimensional Rayleigh-Bénard convection at different Prandtl number (Pr) are investigated in the present paper by using the lattice Boltzmann Method.
Yikun Wei, Zhengdao Wang, Yuehong Qian
doaj   +1 more source

Zero Prandtl-number rotating magnetoconvection [PDF]

Physics of Fluids, 2017
We investigate instabilities and chaos near the onset of Rayleigh-Bénard convection of electrically conducting fluids with free-slip, perfectly electrically and thermally conducting boundary conditions in the presence of uniform rotation about the vertical axis and horizontal external magnetic field by considering zero Prandtl-number limit (Pr → 0 ...
Ghosh, Manojit, Pal, Pinaki
openaire   +2 more sources

Forced Draught Impact on Externally Venting Flames: An Experimental and Numerical Investigation

Fire and Materials, EarlyView.
ABSTRACT Wind can significantly influence fire development and spread in urban and forest environments causing fatal consequences for the public, the first responders, and the environment. Wind‐driven fires can have a significant impact on structural fires as wind can increase the fire's intensity, development, and flame spread.
Anoop Subramania Warrier, Jan Smolka, Kamila Kempna, Meet Panchal, Tony Graham, Eleni Asimakopoulou   +5 more
wiley   +1 more source

Onset of zero Prandtl number convection

, 1992
The transition to convection in a zero Prandtl number fluid with stress-free and perfectly conducting boundaries differs significantly from finite Prandtl number convection, giving rise to a three-dimensional pattern. Two possible scenarios are described
E. Knobloch
core   +1 more source

Ergebnisse der Aerodynamischen Versuchsanstalt zu Göttingen - II. Lieferung

, 2009
Mit der Berufung Ludwig Prandtls als Professor für Angewandte Mechanik wurde die kleine Universitätsstadt Göttingen im Jahr 1904 zur Wiege der modernen Strömungsmechanik und Aerodynamik.
Wieselsberger, Carl, Betz, Albert, Prandtl, Ludwig   +2 more
core   +2 more sources

The Combined Effects of Variable Viscosity and Thermal Conductivity of An Unsteady Casson Fluid Flow Along a Vertical Porous Channel With Convective Cooling Walls, Using the Bivariate Spectral Local Linearization Method

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This study examines the combined impact of different thermal conductivity and viscosity on unsteady non‐Newtonian Casson fluid flow of incompressible, electrical conductivity in a porous vertical channel with convective cooling walls, uniform magnetic field, and constant pressure gradient.
A. S. Adeyemo, Precious Sibanda, S. P. Goqo   +2 more
wiley   +1 more source

Stellar convection as a low Prandtl number flow [PDF]

International Astronomical Union Colloquium, 1991
AbstractThermal convection in the Sun and cool stars is often modeled with the assumption of an effective Prandtl number σ ≃ 1. Such a parameterization results in masking of the presence of internal shear layers which, for small σ, might control the large scale dynamics.
openaire   +1 more source