Results 61 to 70 of about 9,203 (285)

Notes on Parameterized Energy Pathways in the Ocean: Insights From Stochastic and Deterministic Kinetic Energy Injection

Journal of Advances in Modeling Earth Systems
Accurately representing ocean dynamics across interacting scales remains a challenge in numerical modeling. This study examines mesoscale eddy parameterization in eddy‐permitting ocean models by incorporating novel stochastic perturbations and comparing ...
Ekaterina Bagaeva, Christian L. E. Franzke, Sergey Danilov, Kirthana Vijay, Stephan Juricke   +4 more
doaj   +1 more source

Energetics of Eddy–Mean Flow Interaction in the Kuroshio Current Region

Journal of Marine Science and Engineering
A comprehensive diagnosis of eddy–mean flow interaction in the Kuroshio Current (KC) region and the associated energy conversion pathway is conducted employing a state-of-the-art high-resolution global ocean–sea ice coupled model.
Yang Wu, Dalei Qiao, Chengyan Liu, Liangjun Yan, Kechen Liu, Jiangchao Qian, Qing Qin, Jianfen Wei, Heyou Chang, Kai Zhou, Zhengdong Qi, Xiaorui Zhu, Jing Li, Yuzhou Zhang, Hongtao Guo   +14 more
doaj   +1 more source

New turbulence modeling for air/water stratified flow

Journal of Ocean Engineering and Science, 2020
The prediction of interfacial turbulence characteristics is one of the still challenging of two-phase stratified flow. The evaluation of some important parameters such as interfacial heat transfer coefficient based on turbulence kinetic energy and ...
M. Ghafari, M.B. Ghofrani
doaj   +1 more source

A Neutrally Stratified Boundary-Layer: A Comparison of Four Large-Eddy-Simulation Computer Codes

, 1994
A neutrally stratified Ekman layer limited in depth by a stress-free rigid lid has been simulated using four different large-eddy simulation computer codes.
Andren, A., F. T. M. Nieuwstadt, Schumann, U., Nieuwstadt, F.T.M., Brown, A., A. R. Brown, Moeng-C.-H.,, U. Schumann, C.-H. Moeng, A. Andren, C.‐H. Moeng, Brown, A.R., P. J. Mason, Graf, J., Mason, P.J., J. Graf, Moeng, C.-H., A. Brown   +17 more
core   +1 more source

Equilibration of the Antarctic Circumpolar Current by standing meanders [PDF]

, 2014
The insensitivity of the Antarctic Circumpolar Current (ACC)’s prominent isopycnal slope to changes in wind stress is thought to stem from the action of mesoscale eddies that counterbalance the wind-driven Ekman overturning—a framework verified in ...
Naveira Garabato, Alberto C., Thompson, Andrew F.   +1 more
core   +1 more source

A new drag and lift correlation for spherocylinders from fully resolved Immersed Boundary Method

AIChE Journal, EarlyView.
Abstract Many industrial processes deal with non‐spherical particles, e.g., mineral mining and biomass conversion. It is crucial to understand the particles' hydrodynamics to control and optimize these processes. To extend the current state‐of‐the‐art from arrays of spherical particles to spherocylindrical particles, we performed extensive particle ...
A. H. Huijgen, Y. Sterkenburgh, Y. Tang, N. G. Deen, M. W. Baltussen   +4 more
wiley   +1 more source

Thermal Calculations for Co‐Firing of Hydrogen/Ammonia and Coal in 660‐MW Coal‐Fired Boilers

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To achieve a clean energy transition under the dual carbon goals, blending hydrogen/ammonia into pulverized coal boilers represents a key technological pathway. Different hydrogen/ammonia co‐firing ratios (5%–50%) are investigated for their impact on the thermodynamic characteristics of 660‐MW supercritical boiler at 100% and 20% boiler ...
Yaodong Da, Nana Hou, Weipeng Wang, Yongqiang Chang, Xin Liu, Feng Pan, Defu Che, Lei Deng   +7 more
wiley   +1 more source

Wind work on oceanic mesoscale eddies in the Northeast Tropical Pacific Ocean

Frontiers in Marine Science, 2023
The transfer of atmospheric kinetic energy to the ocean is one of the major concerns in climate research. According to previous studies, the work of wind stress on oceanic mesoscale eddy is negative in most oceans, referred to as “eddy killing”. However,
Fangyuan Teng, Changming Dong, Changming Dong, Kenny Thiam Choy Lim Kam Sian, Jinlin Ji, Jinlin Ji, Weijun Zhu   +6 more
doaj   +1 more source

Potential contribution of biomass gasification‐based technology in energy transition: a technical review coupled with bibliometric studies

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Biomass gasification technology has been extensively researched around the world; however, there is a need to evaluate the current research landscape and evolutionary direction of research in the broader context of energy transition. A systematic bibliometric analysis of the Web of Science database was performed for articles that fall within ...
Olasunkanmi Opeoluwa Adeoye, Electo Eduardo Silva Lora, Rubenildo Vieira Andrade, Leonardo Peña Pupo, René Lesme Jaén, Osvaldo José Venturini   +5 more
wiley   +1 more source

On the use of kinetic energy preserving DG-schemes for large eddy simulation [PDF]

Journal of Computational Physics, 2017
High Order DG methods with Riemann solver based interface numerical flux functions offer an interesting dispersion dissipation behaviour: dispersion errors are very low for a broad range of scales, while dissipation errors are very low for well resolved scales and are very high for scales close to the Nyquist cutoff.
David Flad, Gregor Gassner
openaire   +2 more sources