Results 101 to 110 of about 23,157 (244)

Ludwig Prandtl - ein Lebensbild; Erinnerungen, Dokumente

open access: yes, 2005
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.
Vogel-Prandtl, Johanna
core  

Heat transfer analysis of Prandtl liquid nanofluid in the presence of homogeneous-heterogeneous reactions

open access: yesResults in Physics, 2018
The objective of present research work is to analyze the homogeneous-heterogeneous reactions on the MHD two-dimensional stagnation-point flow of non-Newtonian Prandtl fluid flow and heat transfer towards horizontal linear stretching sheet.
Feroz Ahmed Soomro   +3 more
doaj   +1 more source

Toward Optimal After‐Growth Cooling of a Single Crystal

open access: yesCrystal Research and Technology, Volume 61, Issue 10, October 2026.
A novel and computationally efficient approach to generate optimal after‐growth cooling profiles is presented Optimal strategies for after‐growth cooling of a single crystal are computed for idealized cooling profiles. General scaling laws for maximum cooling rate and total cooling time as function of material and crystal properties are found ...
Markus Zenk   +4 more
wiley   +1 more source

Nanofluid Heat Transfer Enhancement in Porous Media With Geometric and Particle Morphology Effects

open access: yesEngineering Reports, Volume 8, Issue 10, October 2026.
Levenberg–Marquardt neural network predicts Cu–water nanofluid flow and heat transfer in a converging/diverging porous channel with Darcy–Forchheimer drag, nanoparticle shape effects (sphere, column, lamina), and viscous dissipation. ABSTRACT Efficient thermal management in porous, nanofluid‐filled systems is essential for applications such as compact ...
Shafaq Naz, Saman Mushtaq
wiley   +1 more source

Onset of zero Prandtl number convection

open access: yes, 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

Laminar Natural Convection of Newtonian and Non – Newtonian Fluids Inside Triangular Enclosure

open access: yesAl-Khawarizmi Engineering Journal, 2007
In the present work, steady two – dimensional laminar natural convection heat transfer of Newtonian and non-Newtonian fluids inside isosceles triangular enclosure has been analyzed numerically for a wide range of the modified Rayleigh numbers of (103 ...
Ala?a Abbas Muhadi
doaj   +2 more sources

Quantitative aspects on the ill-posedness of the Prandtl and hyperbolic Prandtl equations

open access: yesZeitschrift für angewandte Mathematik und Physik
AbstractWe address the Prandtl equations and a physically meaningful extension known as hyperbolic Prandtl equations. For the extension, we show that the linearised model around a non-monotonic shear flow is ill-posed in any Sobolev spaces. Indeed, shortly in time, we generate solutions that experience a dispersion relation of order $$\root 3 \of {k}$$
De Anna F., Kortum J., Scrobogna S.
openaire   +3 more sources

Numerical Investigation of MHD‐Driven Heat and Mass Transfer in a Porous Enclosure Filled With Cu–Water Nanofluid

open access: yesEngineering Reports, Volume 8, Issue 10, October 2026.
A finite element framework is developed to analyze MHD flow and heat transfer in a porous T‐joint cavity under an inclined magnetic field, including viscous dissipation and heat source/sink effects. The model combines domain discretization, mesh refinement, and equation discretization to obtain validated numerical predictions.
Samiha Islam Tanni   +4 more
wiley   +1 more source

Nanotechnology‐Driven Analysis of MHD Maxwell‐Casson Nanofluid Flow With Activation Energy Using Artificial Neural Networks

open access: yesEngineering Reports, Volume 8, Issue 10, October 2026.
This study investigates Casson nanofluid flow over a porous inclined plate under magnetic field, thermal radiation, buoyancy, and chemical reaction with activation energy. A feedforward artificial neural network (ANN) is employed to solve the coupled nonlinear governing equations and predict velocity, temperature, and concentration profiles.
D. Prabu   +5 more
wiley   +1 more source

Heat Transfer Enhancement in the Microscale: Optimization of Fluid Flow

open access: yesEngineering Reports, Volume 8, Issue 10, October 2026.
Microscale heat transfer deviates from conventional behavior due to scale effects and fluid properties. This review examines single‐phase convection and advanced working fluids, highlighting key mechanisms such as rarefaction, surface effects, and phase interactions, to guide optimized design of high‐performance microchannel heat exchangers.
Md Atiqur Rahman   +6 more
wiley   +1 more source

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