Results 81 to 90 of about 21,976 (201)

Hydraulic Activation of Stomata Induced by Hygroscopic Fertilizer Salts Alters Crop Carbon–Water Exchange: Field Evidence From Cereal Crops

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Hydraulic activation of stomata (HAS), driven by hygroscopic salt films on leaf surfaces, can create an additional pathway for water loss beyond conventional stomatal vapour diffusion, yet this process remains largely overlooked in studies of plant–atmosphere interactions.
Shuaishuai Deng   +10 more
wiley   +1 more source

Modeling of MHD natural convection in a square enclosure having an adiabatic square shaped body using Lattice Boltzmann Method

open access: yesAlexandria Engineering Journal, 2016
A steady laminar two-dimensional magneto-hydrodynamics (MHD) natural convection flow in a square enclosure filled with an electrically conducting fluid is numerically investigated using Lattice Boltzmann Method (LBM).
Ahmed Kadhim Hussein   +5 more
doaj   +1 more source

Generalized Prandtl--Ishlinskii operators arising from homogenization and dimension reduction [PDF]

open access: yes, 2011
We consider rate-independent evolutionary systems over a physically domain Ω that are governed by simple hysteresis operators at each material point.
Alexander Mielke, Mielke, Alexander
core   +1 more source

The Curious Life of Walter Lode

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT This paper is intended to serve as a supplement to the work [PAMM ‐ Proceedings in Applied Mathematics and Mechanics 24, no. 2 (2024): e202400004] to underline the significance of the Lode angle and Lode parameter—concepts attributed to Walter Lode—for the development of modern plasticity theory.
Otto T. Bruhns
wiley   +1 more source

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  

Turbulent passive scalar field of a small prandtl number

open access: yes, 1986
The statistical-mechanics theory of the passive scalar field convected by turbulence, developed in an earlier paper [Phys. Fluids 28, 1299 (1985)], is extended to the case of a small molecular Prandtl number.
Qian J   +1 more
core   +1 more source

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

open access: yesProceedings 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   +2 more
wiley   +1 more source

Turbulent Prandtl Number and its Use in Prediction of Heat Transfer Coefficient for Liquids

open access: yesمجلة النهرين للعلوم الهندسية, 2007
A theoretical study is performed to determine the turbulent Prandtl number (Prt ) for liquids of wide range of molecular Prandtl number (Pr=1 to 600) under turbulent flow conditions of Reynolds number range 10000- 100000 by analysis of experimental ...
Basim O. Hasan
doaj  

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

open access: yes
We 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.
Scrobogna, Stefano   +5 more
core   +1 more source

Capability and Limitations of a Tuned Mass Damper for a 15‐MW Semisubmersible Floating Wind Turbine

open access: yesWind Energy, Volume 29, Issue 11, November 2026.
ABSTRACT Large floating offshore wind turbines (FOWTs) under coupled aerodynamic and hydrodynamic loading exhibit broadband low‐frequency response in addition to the platform‐pitch resonance. Tuned mass dampers (TMDs) have been studied for a range of applications, but their net benefit under fully coupled operational conditions has not been quantified.
Yu Gao   +3 more
wiley   +1 more source

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