Results 31 to 40 of about 3,589 (183)

Optimal Modeling Study of Flooding Phenomenon in Urban Area (Dam break case) [PDF]

International Journal for Simulation and Multidisciplinary Design Optimization, 2010
In this paper a numerical study of urban flooding caused by dam break has been undertaken. Problem statement: This study illustrated the influence of the different versions of K-epsilon turbulence model on the water flow behavior, predicted by ...
Rezoug M., El Meouche R., Hamzaoui R., F Khreim J., Q Feng Z., Bassir D.   +5 more
doaj   +1 more source

Level-Set Interface Description Approach for Thermal Phase Change of Nanofluids

Nanomaterials, 2022
Simulations of thermally driven phase change phenomena of nanofluids are still in their infancy. Locating the gas–liquid interface location as precisely as possible is one of the primary problems in simulating such flows.
Ali Yahyaee, Amir Sajjad Bahman, Klaus Olesen, Henrik Sørensen   +3 more
doaj   +1 more source

Static Drainage H2/O2 PEM Fuel Cells Enabled by Water Transport Plates: Pore‐Scale Design and Transport Mechanisms

Advanced Science, EarlyView.
The WTP is a key component of static drainage PEMFCs, enabling cathode water removal and gas sealing through capillary forces. This work investigates the mechanisms governing WTP drainage and sealing performance and develops predictive approaches for WTP design optimization.
Mengdi Guo, Diankai Qiu, Dong Zhu, Linfa Peng   +3 more
wiley   +1 more source

Numerical Simulation of Junction Angle and Discharge Ratio on Separation Zone Dimensions at Open Junction Channels [PDF]

مهندسی منابع آب, 2015
The confluence of two streams creates a complex flow which accelerates downstream. In a junction area, the separation zone is developed in the main channel.
S. Gohari
doaj  

µSlicer for Programmable Multimaterial 3D Printing

Advanced Science, EarlyView.
ABSTRACT Nature rarely builds with uniform materials; instead, it achieves exceptional performance by arranging composition and structure across multiple length scales. Mimicking such architectures has become increasingly feasible with additive manufacturing, and especially with multimaterial 3D printing, where complex structures with spatially varying
Daniel H. Meile, Berin Šeta, Md. Tusher Mollah, Yohan Jacquet, Rob Wolfs, Jon Spangenberg   +5 more
wiley   +1 more source

Deslocamento de óleo por água em um microcanal com cavidade de quinas arredondadas

Holos, 2018
No presente estudo é analisado numericamente, com auxílio do software Ansys Fluent, a mobilização de óleo mediante injeção de água em uma geometria bidimensional formado por placas paralelas com uma microcavidade quadrada que, de forma simplificada ...
Suellen Freire Rigatto, Oldrich Joel Romero   +1 more
doaj   +1 more source

Manipulating Transverse Spin Angular Momentum with Symmetrically Modulated Hybridly Polarized Vector Optical Field

Photonics, 2022
Transverse spin angular momentum (SAM) of photon, also known as ‘photonic wheel’, has attracted much attention, owing to its extraordinary properties and broad application prospect. Thus, it is essential to flexibly manipulate the transverse SAM in order
Xue-Feng Sun, Yue Pan, Guang-Bo Zhang, Zhong-Xiao Man, Xu-Zhen Gao   +4 more
doaj   +1 more source

Hydrodynamic Selection of Polymorphic Assembly Pathways in Plant Protein Amyloid Fibrils

Advanced Science, EarlyView.
Hydrodynamic conditions are revealed to govern polymorphic assembly of soy protein amyloid fibrils. Distinct flow‐induced drafting, kissing, and docking dynamics direct fibril growth into multiple morphologies, linking fluid mechanics with nanoscale assembly and enabling rational design of functional amyloid materials.
Zejian Xu, Pengfei Yang, Meng Li, Zichen Cao, Tian Lan, Yan Zhang, Weibiao Zhou, Lianzhou Jiang, Xiaonan Sui   +8 more
wiley   +1 more source

Experimental and numerical study of liquid–liquid systems using the Euler–Lagrange/VOF approach

AIChE Journal, EarlyView.
Abstract Achieving stable liquid–liquid dispersions with controlled droplet size remains a challenge due to the complex interplay of dispersed phase viscosity, hydrodynamic conditions and interfacial interactions. This work presents a validated computational framework for droplet breakage and coalescence in liquid–liquid dispersions with variable ...
Pavel Krýsa, Vojtěch Koutník, Simon Kuhn, Miroslav Šoóš   +3 more
wiley   +1 more source

Optimization of 3D‐Printed Structured Packings—Current State and Future Developments

Chemie Ingenieur Technik, EarlyView.
This paper gives an overview about structured packing development for distillation, surveying heuristic development cycles, computational fluid dynamics simulations, and additive manufacturing techniques. The emerging application of shape optimization to improve packings is emphasized, and its benefits, impact, and limitations are discussed.
Dennis Stucke, Sebastian Blauth, Christian Leithäuser, Thomas Grützner   +3 more
wiley   +1 more source