Results 111 to 120 of about 7,025,656 (234)

Lateral Momentum Transfer in Ice‐Covered Rivers

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 9, September 2026.
Abstract Ice cover alters river hydrodynamics by introducing surface roughness. This roughness modifies momentum redistribution and bed shear stress. Using theoretical arguments, we present an approach for the lateral momentum load in ice‐covered streams.
Javad Souri, Berkay Koyuncu, Leonardo P. Chamorro, Trung Bao Le   +3 more
wiley   +1 more source

NORi: An ML‐Augmented Ocean Boundary Layer Parameterization

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.
Abstract NORi is a machine learning (ML) parameterization of ocean boundary layer (BL) turbulence that is physics‐based and augmented with neural networks. NORi stands for neural ordinary differential equations Richardson number (Ri) closure. The physical parameterization is controlled by a Richardson number‐dependent diffusivity and viscosity.
Xin Kai Lee, Ali Ramadhan, Andre Souza, Gregory LeClaire Wagner, Simone Silvestri, John Marshall, Raffaele Ferrari   +6 more
wiley   +1 more source

The Hydrothermal Wave Of Large-Prandtl-Number Fluid In A Shallow Cavity

, 2007
The hydrothermal wave was investigated numerically for large-Prandtl-number fluid (Pr = 105.6) in a shallow cavity with different heated sidewalls. The traveling wave appears and propagates in the direction opposite to the surface flow (upstream) in the ...
唐泽眉, Tang, ZM (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv lab, Beijing 100080, Peoples R China., 胡文瑞   +2 more
core   +1 more source

Ocean Mixing Regimes Set Heat and Buoyancy Fluxes From the Arctic's Atlantic Water Layer

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Quantifying Arctic Ocean mixing is important for understanding the Arctic climate system. Direct mixing measurements cannot robustly characterize mixing on a pan‐Arctic scale, while indirect estimates based on parameterizations must be made with care; multiple mixing mechanisms including double diffusion, internal wave breaking and molecular ...
S. Waterman, M. Chanona, H. V. Dosser, N. C. Shibley, M.‐L. Timmermans   +4 more
wiley   +1 more source

Effect of Prandtl Number on Solidification Behavior of Eutectic Solutions [PDF]

, 2014
This article investigates the effect of Prandtl number on solidification bahaviour in a top-cooled rectangular cavity considering eutectic compositions of four different binary solutions.
Dhar, Mrinmoy, Mandal, Snehanshu, Barman, Nilkanta, Chattopadhyay, Himadri   +3 more
core   +1 more source

Gravity Wave Energy Baselines (∼30–110 km) Established From Lidar Observations at McMurdo (77.84°S, 166.67°E), Antarctica: Energy Dissipation and Constituent Diffusion

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Lidar observations above McMurdo, Antarctica from 2011 to 2024 are used to characterize gravity wave (GWs) potential energies (Ep ${E}_{p}$) in the mesosphere and lower thermosphere (MLT). Alongside characterizations in the middle atmosphere (30–70 km), the GW baselines show dissipation at all altitudes from 30 to 110 km.
Jackson Jandreau, Xinzhao Chu, Yingfei Chen, Chester S. Gardner   +3 more
wiley   +1 more source

Diffusion Processes in the A-Model of Vector Admixture: Turbulent Prandtl Number

EPJ Web of Conferences, 2018
Using analytical approach of the field theoretic renormalization-group technique in two-loop approximation we model a fully developed turbulent system with vector characteristics driven by stochastic Navier-Stokes equation. The behaviour of the turbulent
Jurčišinová Eva, Jurčišin Marián, Remecky Richard   +2 more
doaj   +1 more source

Eddy diffusivity based comparisons of turbulent prandtl number for boundary layer and free jet flows with reference to fluids of very low prandtl number

, 1993
It is shown that turbulent Prandtl numbers for turbulent boundary layer and jet flows correlate well if compared on the basis of eddy diffusivity. Experimental data for liquid sodium (Pr= 0.0058) lead to a universal expression relating turbulent Prandtl ...
Bremhorst, K., Krebs, L.
core   +1 more source

Ludwig Prandtl - ein Lebensbild; Erinnerungen, Dokumente

, 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  

A laboratory-scale experiment and a numerical simulation of unusual spiral plumes in a High-Prandtl-number fluid, links supplementary material

, 2014
We experimentally and numerically investigated the generation of plumes from a local heat source (LHS) and studied the interaction of these plumes with cellular convective motion (CCM) in a rectangular cavity filled with silicon oil at a Prandtl number ...
Anatoly N Poludnitsin (8009489), Bezprozvannikh, Vladimir A, Vladimir A Bezprozvannikh (8009486), Poludnitsin, Anatoly N, Albert N Sharifulin (8009483), Sharifulin, Albert N   +5 more
core   +1 more source