Results 111 to 120 of about 3,613,271 (266)

Analytical modelling of cillia- driven prandtle fluid flow in a horizontal tube with viscous dissipation using homotopy perturbation method

Results in Engineering
This work analytically investigates the effects of viscous dissipation on cilia-induced Prandtl fluid flow in a horizontal tube. Approximate formulations for temperature and velocity profiles are obtained by solving the governing nonlinear equations ...
Saira Muhammad Hussain, Aqila Shaheen, Ali Hasan Ali, Ali Raza, Ahmed M. Abed   +4 more
doaj   +1 more source

Influence of Thermal Boundary Conditions on Heat Transfer in Turbulent Annular Pipes

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Turbulent concentric annular pipe flow with heat transfer is investigated using the stochastic one‐dimensional turbulence (ODT) model. In the present study, annular pipe flow is investigated at fixed bulk Reynolds number ReDh=17700$\mathit {Re}_{D_{\rm h}}=17\,700$ and Prandtl number Pr=0.71$\mathit {Pr}=0.71$ using two different thermal ...
Pei‐Yun Tsai, Heiko Schmidt, Marten Klein   +2 more
wiley   +1 more source

Prandtl number dependence of the onset of instability for differentially heated cavity flow

, 2018
The differentially heated square cavity, consisting of a fluid filled square enclosure with a temperature difference imposed between the two side walls, is a classical problem in natural convection that is widely used to study fundamental features of ...
Norris, Stuart
core  

Global bifurcations to subcritical magnetorotational dynamo action in Keplerian shear flow [PDF]

, 2013
Magnetorotational dynamo action in Keplerian shear flow is a three-dimensional, non-linear magnetohydrodynamic process whose study is relevant to the understanding of accretion processes and magnetic field generation in astrophysics.
Cossu, Carlo, Lesur, Geoffroy, Lesur, G., Longaretti, P.-Y., Ogilvie, Gordon I., Rincon, F., Rincon, François, Riols, A., Herault, Johann, Cossu, C., Ogilvie, G., Riols, Antoine, Longaretti, Pierre-Yves   +12 more
core   +1 more source

How Much Physics Should a Neural Network Know? Thermodynamics‐Informed Neural Networks for Rock Constitutive Modeling With Epistemic Uncertainty

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Machine learning offers a flexible route to constitutive modeling, with two emergent questions for geoscience applications: what level of thermodynamic constraint should be embedded in the network architecture, and how should predictive uncertainty be quantified when extrapolating from laboratory to field conditions? We address both challenges
Kangan Li, Tushar Mittal, Benjamin K. Holtzman, Seth Saltiel   +3 more
wiley   +1 more source

Structure of Boundary Layer Wind and Turbulence in Super Typhoon Ragasa and Typhoon Wipha During Landfall

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract Boundary layer turbulence and vertical mixing exert great control over the structure and evolution of tropical cyclones (TCs). However, scaling and parameterizing them remains challenging due to their inherent complexity and limited observations.
Junyi He, Yucheng Xue, Feng Hu, Yikang Liu, Qiusheng Li, Honglong Yang, Pak Wai Chan   +6 more
wiley   +1 more source

Bubble‐Mediated Intensification of Biomass‐Based Oil Conversion: Bubble Dynamics, Control Strategies and Equipment

Carbon and Hydrogen, Volume 28, Issue 3, Page 320-339, September 2026.
Focus on the bubble interface transfer behavior during the conversion process of biomass‐based oil, and mainly review the bubble dynamic characteristics in the gas‐solid/gas‐liquid reaction processes under extreme conditions during the conversion process.
Zhenghao Yang, Jiajia Li, Yong Yu, Zhibin Zhou, Benshuai Guo, Yulong Chang, Jianping Li, Xia Jiang   +7 more
wiley   +1 more source

Analysis of Turbulent Free Convection in a Rectangular Rayleigh-Benard Cell [PDF]

, 2007
The present study compares results of direct numerical simulations of thermal convection within a rectangular geometry with Rayleigh-Benard convection in thin fluid layers and cylindrical geometries.
Kaczorowski, Matthias, Wagner, Claus
core  

Transient Approach to Radiative Heat Transfer Free Convection Flow with Ramped Wall Temperature

Journal of Applied Fluid Mechanics, 2012
The effect of radiation on natural convection incompressible viscous fluid near a vertical flat plate with ramped wall temperature has been studied.
R.R Patra, S. Das, R.N Jana, S.K Ghosh
doaj  

Gradient‐Based Optimization Modeling of Total Entropy and Heat Transfer in Exothermic Blood Analog Gold Nanoparticle Suspension

Engineering Reports, Volume 8, Issue 9, September 2026.
This study develops a gradient‐based multi‐start Nelder–Mead optimization framework for Casson‐micropolar blood‐analog nanofluid flow with gold nanoparticles in a convectively heated, exothermic microchannel, motivated by photothermal drug delivery. Spectral collocation solves coupled momentum, microrotation, and energy equations, from which entropy ...
Mojeed T. Akolade, Mathew F. Oyedotun, Michael O. Oni, Yusuf O. Tijani, Adeshina T. Adeosun, T. Sathiyaraj, Abiodun O. Ajibade, Mohamed M. Awad   +7 more
wiley   +1 more source