Results 41 to 50 of about 6,038,062 (267)

A Study of LES Stress and Flux Models Applied to a Buoyant Jet [PDF]

, 2005
Large eddy simulation (LES) stress and scalar flux subgrid scale models are evaluated in the context of buoyant jets. Eddy viscosity, eddy diffusivity (including formulations of the generalized gradient diffusion hypothesis), “structure” (Bardina and ...
Rubini, Philip A., Worthy, Jude
core   +1 more source

Effects of mesoscale eddy/wind interactions on biological new production and eddy kinetic energy [PDF]

Journal of Geophysical Research: Oceans, 2009
Accounting for ocean currents in the bulk parameterization of the wind stress might represent a physically more plausible way to force an ocean model than ignoring their effect. We show in this study that using the air‐sea velocity difference instead of the atmospheric wind in the wind stress formulation dampens both the near‐surface eddy activity and ...
Eden, C., Dietze, H.
openaire   +4 more sources

Diagnostic Framework Linking Eddy Flux Ellipse with Eddy-Mean Energy Exchange

Ocean-Land-Atmosphere Research
The design of non-eddy-resolving numerical models requires a good understanding and an appropriate representation of the eddy-mean flow feedback. To understand this feedback, we propose a diagnostic framework that links eddy geometry with the eddy-mean ...
Ru Chen, Yi Yang, Qianqian Geng, Andrew Stewart, Glenn Flierl, Junyi Wang   +5 more
doaj   +1 more source

Band Alignment of Grafted Si/Ge0.89Sn0.11 Heterojunction Determined by X‐Ray Photoelectron Spectroscopy

Advanced Materials Interfaces, EarlyView.
ABSTRACT We investigate the band alignment of a monocrystalline grafted p‐type Si/Ge0.89Sn0.11 heterostructure using X‐ray photoelectron spectroscopy (XPS). The bandgap of the Ge0.89Sn0.11 epilayer of 0.50 eV was first determined and cross‐verified using photoluminescence spectroscopy, infrared transmission, and theoretical calculation.
Yang Liu, Yiran Li, Tsung‐Han Tsai, Sudip Acharya, Yi Lu, Jie Zhou, Samuel A. Haessly, Shui‐Qing Yu, Nanditha M. Dissanayake, Edward K. Huang, Jiarui Gong, Zhenqiang Ma   +11 more
wiley   +1 more source

Overcoming the Trade‐Off Between Magnetic Coupling and Electrical Insulation in Soft Magnetic Materials via Nanochain Engineering

Advanced Science, EarlyView.
This study employs a nanochain engineering approach combined with an in situ oxidation strategy to fabricate self‐insulating iron‐based magnetic nanochains, addressing the challenge of balancing magnetic coupling and electrical insulation in soft magnetic materials.
Dingrong Zuo, Lichen Liu, Haibo Ke, Rongsheng Bai, Huaping Ding, Jing Zhou, Zhenxiang Cheng, Peng Yu, Weihua Wang   +8 more
wiley   +1 more source

The role of eddy-wind interaction in the eddy kinetic energy budget of the Agulhas retroflection region

Environmental Research Letters, 2023
Abstract The Agulhas retroflection (AR) region possesses the highest eddy kinetic energy (EKE) level in the Indian Ocean. However, mechanisms regulating EKE of the AR remain uncertain. Here, by analyzing an eddy-resolving coupled model simulation with improved EKE representation, we show that the upper-ocean EKE of the AR is mainly ...
Yanan Zhu, Yuanlong Li, Yang Yang, Fan Wang   +3 more
openaire   +2 more sources

Efficient Adsorption‐Based Direct Air Capture Via Triply Periodic Minimal Surface Architectures

Advanced Science, EarlyView.
Architected triply periodic minimal surface (TPMS) contactors reshape direct air capture by replacing straight‐channel diffusion limits with convection‐enhanced CO2 transport. Chaotic advection thins boundary layers and exposes fast adsorption sites, enabling 70%–75% more fast sites, 114% higher productivity, and 51.8% lower energy consumption than ...
Qingyang Shao, Zhuozhen Gan, Chengcheng Long, Man Zhang, Yihe Miao, Yuehui Li, Xuancan Zhu   +6 more
wiley   +1 more source

A new dynamic subgrid-scale model using artificial neural network for compressible flow

Theoretical and Applied Mechanics Letters, 2022
The subgrid-scale (SGS) kinetic energy has been used to predict the SGS stress in compressible flow and it was resolved through the SGS kinetic energy transport equation in past studies.
Han Qi, Xinliang Li, Ning Luo, Changping Yu   +3 more
doaj   +1 more source

Large-eddy simulation of kerosene spray combustion in a model scramjet chamber

, 2010
Large-eddy simulation (LES) of kerosene spray combustion in a model supersonic combustor with cavity flame holder is carried out. Kerosene is injected through the ceiling of the cavity.
Zhang, Man, Hu, Zhiwei, He, Guoqiang, Liu, Peijin   +3 more
core   +1 more source

A Phosphorylation‐Induced Micellization Switch in the Low‐Complexity Domain of TDP‐43

Advanced Science, EarlyView.
Phosphorylation of TAR DNA‐binding protein's 43 kDa (TDP‐43) low‐complexity domain by casein kinase 1 delta (CK1δ) acts as a molecular switch, redirecting its self‐assembly from macroscopic phase separation toward finite‐sized, spherical block‐copolymer micelles of ∼30 nm.
Rodrigo F. Dillenburg, Anastasia Lopatina, Hao Ruan, Tom Scheidt, Simone Mosna, Emre Pekbilir, Julia Bieber, Frank Schäfer‐Depoix, Katharina Landfester, Carla Schmidt, Martin M. Möckel, Svenja Morsbach, Friederike Schmid, Dorothee Dormann, Lukas Stelzl, Martin Girard, Edward A. Lemke   +16 more
wiley   +1 more source