Results 31 to 40 of about 5,866,214 (252)

Laboratory Study of Local Scour Around an Array of Pile Groups in Clear-Water Scour Conditions

Journal of Marine Science and Engineering
Current-induced local scour around pile groups weakens the capacity of structures. In this paper, experimental tests of local scour around an array of 5 × 5 pile groups were conducted in a steady current in a hydraulic flume.
Ming Gong, Xinying Pan, Shengtao Du, Guoxiang Wu, Yingxue Lv, Yunjia Sun, Guangjia Ding, Bingchen Liang   +7 more
doaj   +1 more source

Experimental investigation of local scour around multi-vents bridge piers

Alexandria Engineering Journal, 2015
The harmful effect of local scour around bridge piers and abutments can induce high maintenance costs or even bridge collapse resulting in the disturbance of traffic and possibly human losses.
Yasser A. Mohammed, Yasser K. Saleh, Abdel-Azim M. Ali   +2 more
doaj   +1 more source

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

Ablation‐Immune Thermal Armor Via Microstructural‐Compatibility Design for Extreme Thermal Conditions

Advanced Science, EarlyView.
This study unveils a microstructural‐compatibility design strategy that integrates reactive melt infiltration with plasma spraying to fabricate carbon fiber‐reinforced ZrC‐SiC composites. The deliberate incorporation of SiC into the ZrC coating releases heat accumulation, suppresses detrimental lamellar ZrO2 formation, and reduces residual stress. This
Hongkang Ou, Lingxiang Guo, Bing Liu, Ziyi Yi, Yuyu Zhang, Jia Sun, Qiangang Fu   +6 more
wiley   +1 more source

On local scouring downstream small water structures

PeerJ, 2020
Background In order to regulate water flow, hydraulic structures such as weirs or checks, frequently equipped with gates, are used. Water can flow below or over the gate or, simultaneously, over and below the gate.
Kiraga, Marta, Popek, Zbigniew
openaire   +3 more sources

Numerical investigation of wave-induced local scour around a submarine pipeline

, 2014
A two-dimensional numerical model is developed in this work to predict the local scour around subsea pipelines induced by the orbital fluid motion due to free-surface water waves. Instead of being simplified as an oscillatory flow, the motion of the wave
Lin Lu, Ming-Ming Liu, Liu, Mingming, Zhao, Ming (R16667), Lu, Lin, Bin Teng, Ming Zhao, Tang, Guoqiang, Guo-Qiang Tang, Teng, Bin   +9 more
core   +1 more source

Tri‐Functional Electrocatalysis for Zinc–Air Battery Coupled Water Splitting: A Catalyst‐Electrode‐Device‐System Perspective

Advanced Science, EarlyView.
This review establishes a catalyst–electrode–device–system framework for tri‐functional HER/OER/ORR electrocatalysis that couples water splitting with Zn–air batteries. Five catalyst families are covered: noble‐metal, metal‐based, single‐atom, heterostructure, and metal‐free systems.
Xixi Di, Chao Duan, Shuzhen Li, Yiyang Che, Xiaoshuang Liu, Chuanyin Xiong, Mengxia Shen, Yichao Wang, Derek Hao, Yonghao Ni   +9 more
wiley   +1 more source

Local Scour at Bridge Abutments

Journal of King Abdulaziz University-Engineering Sciences, 1998
This paper presents the results of an experilnental investigation of local scour at bridge abutment models of three common shapes placed in laboratory flume with uniform sand with d)l) =0.775 mm. The 1l1uximum scour depths and extent of scour were determined corresponding to clear water conditions.
D. HUSAIN, A. QURAISHI, A. ALIBRAHIM
openaire   +1 more source

Local scour of composite cylindrical wind turbine foundation on fine sand seabed under combined waves and current

Energy Informatics
The composite cylindrical wind turbine foundation is characterized by its large-diameter cylindrical base, which offers superior anti-overturning capability, and it is widely used in the soft soil seabed of Jiangsu, China.
Can Tang, Chunguang Yuan, Wei Tang, Na Zhang   +3 more
doaj   +1 more source

Evolution features of riverbeds near underwater crossing line pipes: An experimental study

Natural Gas Industry B, 2020
It is of important significance to study the evolution law of the riverbed near underwater crossing line pipes for ensuring the safe operation of oil and gas pipelines and reducing the risk of damage by water flood disasters.
Qian Yang, Mingnan Sun, Mo He, Qinghua Yang   +3 more
doaj   +1 more source