Results 101 to 110 of about 23,157 (244)
Ludwig Prandtl - ein Lebensbild; Erinnerungen, Dokumente
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
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
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
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
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
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
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
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
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
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

