Results 51 to 60 of about 42,983 (307)

Numerical and Experimental Investigation of the Influence of Backpressure on a Confined Impinging Jet for Small Nozzle-to-plate Spacing [PDF]

Journal of Applied Fluid Mechanics
In order to further extend understanding of the heat transfer characteristics under an enclosed area, the influence of backpressure on a single impingement jet with small nozzle-to-plate spacing (H/D) is studied.
K. Zhu, R. Shen, T. Sun, G. Chen, J. Ding   +4 more
doaj   +1 more source

The influence of convective exchanges on coandã effect [PDF]

, 2019
Modeling Coandã effect has been a fundamental issue in fluid dynamic research in the XX century. It has lost some interest because of the improvement in CFD, even if it could be still important in the area of the preliminary design of aerodynamic devices
Pascoa, J, Trancossi, Michele
core   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

On the space-charge boundary layer inside the nozzle of a cutting torch [PDF]

Journal of Applied Physics, 2009
A numerical study of the space-charge sheath adjacent to the nozzle wall of a cutting torch is presented. The hydrodynamic model corresponds to a collision-dominated sheath and does not assume cold ions, so drift-diffusion-type equations are used.
L. Prevosto, H. Kelly, B. Mancinelli
openaire   +4 more sources

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Study of Overall Morphology and Particle-size Distribution of Spray Field in Gas–liquid Mixed Snow-makers

Zhileng xuebao, 2023
Since the Beijing Winter Olympic Games, the domestic ice and snow industry has grown rapidly, driven particularly by artificial snow parks with higher requirements in terms of both the quantity and the quality of artificial snow.
Hu Hengxiang, Liu Bin, Bi Lisen, Zeng Tao, Li Jiawei   +4 more
doaj  

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Experimental Investigation for Enhancement of Heat Transfer Coefficient in Car Radiator by Using Multiwall Carbon Nanotube (MWCNT) Nanofluid

Automotive Experiences
Improving heat transfer coefficient is a significant subject of study in many engineering domains. The use of nanofluids in car radiators might boost the heat transfer coefficient.
M. Peeraiah, K. Nagamalleswara Rao, B. Balakrishna   +2 more
doaj   +1 more source

Controllable deposition distance of aligned pattern via dual-nozzle near-field electrospinning

AIP Advances, 2017
For large area micro/nano pattern printing, multi-nozzle electrohydrodynamic (EHD) printing setup is an efficient method to boost productivity in near-field electrospinning (NFES) process.
Zhifeng Wang, Xindu Chen, Jun Zeng, Feng Liang, Peixuan Wu, Han Wang   +5 more
doaj   +1 more source

Dual-nozzle microfluidic droplet generator

Nano Convergence, 2018
The droplet-generating microfluidics has become an important technique for a variety of applications ranging from single cell analysis to nanoparticle synthesis.
Ji Wook Choi, Jong Min Lee, Tae Hyun Kim, Jang Ho Ha, Christian D. Ahrberg, Bong Geun Chung   +5 more
doaj   +1 more source