Results 331 to 340 of about 3,583,136 (389)

Droplet transfer behavior of narrow gap laser wire filling welding

International Journal of Modern Physics B, 2019
In this paper, we study the droplet transition behavior of narrow gap laser wire filling welding under the condition of changing welding speed and wire feeding speed, and it was observed by high-speed photography.
Zhiyi Zhang, Rubin Wang, G. Gou, H. Chen, Wei Gao   +4 more
semanticscholar   +1 more source

Visualization of Mass Transfer during Droplet Formation

Chemical Engineering & Technology, 2019
AbstractThe impact of mass transfer in liquid‐liquid extraction during droplet formation in a quiescent continuous phase was investigated. The impact of droplet size, concentration, and formation rate on a hanging droplet was analyzed via laser induced fluorescence (LIF) using rhodamine 6G as tracer in the system of toluene and acetone in water.
Jens Stefan Heine, Hans-Jörg Bart
openaire   +1 more source

Transfer cells and lipid droplets of someValerianaceae

Plant Systematics and Evolution, 1990
Development, structure and the axial distribution of transfer cells and their lignification were investigated inValerianella locusta, Valeriana officinalis, andV. tuberosa (Valerianaceae). Fundamental new results are: (1) Transfer cells often contain numerous lipid droplets. Within the stem the distribution of cells containing lipid droplets correlates
Wolfgang Gaymann, Hermann L�rcher
openaire   +1 more source

Relationship between droplet transfer and forming quality in wire arc additive manufacturing of 2319 aluminum alloy

The International Journal of Advanced Manufacturing Technology, 2023
Zhiwei Dou, Feiyue Lyu, Leilei Wang, Chuanyun Gao, Xiaohong Zhan   +4 more
semanticscholar   +1 more source

Mass transfer into droplets undergoing reactive extraction

Chemical Engineering and Processing: Process Intensification, 2003
Abstract The mass transfer into droplets in metal extraction is investigated in the system ZnSO 4 –H 2 SO 4 /di(2ethylhexyl)phosphoric acid in isododecane. Results of equilibrium measurements and stirred cell experiments are described in a mathematical model based on gradients of chemical potential.
M. Mörters, H.-J. Bart
openaire   +1 more source

Influencing mechanism of high speed on the droplet transfer and process stability during high-power laser-arc hybrid welding

The International Journal of Advanced Manufacturing Technology, 2023
Qingyong Liu, Di Wu, Qingzhao Wang, Pei-lei Zhang, Hua Yan, Tianzhu Sun, Mingliang Yan, Jie Zeng, Zhenyu Liu, Junbo Feng, Ruifeng Li   +10 more
semanticscholar   +1 more source

Heat-transfer measurements of evaporating liquid droplets

International Journal of Heat and Mass Transfer, 1978
The heat transfer to simulated (porous sphere) water and methanol droplets were measured in an atmospheric vertical hot air tunnel. The experiments were limited to a Reynolds number range of 200–2000, a free stream air temperature range of 150–960°C and a velocity range of 2.1–11.4 m/s. The experimental data can best be correlated by Nuf(1 + B) = 2 + 0.
M.C. Yuen, L.W. Chen
openaire   +1 more source

Current status of research on numerical simulation of droplet transfer in CO2 gas–shielded welding

The International Journal of Advanced Manufacturing Technology, 2023
Junyan Miao, Yiwen Li, Bowen Ren, Z. Dong, W. Zou, Chen-Hsuan Chang, Yunlong Chang   +6 more
semanticscholar   +1 more source

Numerical simulation of keyhole behaviors and droplet transfer in laser-MIG hybrid welding of Invar alloy

International journal of numerical methods for heat & fluid flow, 2018
Purpose This paper aims to describe a three-dimensional mathematical and numerical model based on finite volume method to simulate the fluid dynamics in weld pool, droplet transfer and keyhole behaviors in the laser-MIG hybrid welding process of Fe36Ni ...
Dan Zhang, Yanhong Wei, X. Zhan, Jie Chen, Hao Li, Yuhua Wang   +5 more
semanticscholar   +1 more source

Radiation heat transfer in dispersed droplet flow

International Communications in Heat and Mass Transfer, 1989
Abstract A simple model for predicting heat transfer in dispersed droplet flow has been proposed. Parametric trends obtained based on simulation runs are discussed.
S.C. Cheng, C. Nguyen
openaire   +1 more source