Results 11 to 20 of about 64,298 (262)

Contactless mass transfer for intra-droplet extraction [PDF]

Scientific Reports, 2020
AbstractThis study demonstrates the possibility of “contactless” mass transfer between two aqueous slugs (droplets) separated by an oil slug in Taylor flow inside milli-channels. Separation of the alternating aqueous slugs at the outlet was performed by switching a couple of solenoid valves at branched outlets according to signals obtained by an ...
Asano, Shusaku, Takahashi, Yu, Maki, Taisuke, Muranaka, Yosuke, Cherkasov, Nikolay, Mae, Kazuhiro   +5 more
openaire   +3 more sources

Metal Transfer Behavior of Metal-Cored Arc Welding in Pure Argon Shielding Gas

Metals, 2022
The metal transfer behavior of gas metal arc welding in a pure argon shielding gas was evaluated through experiments using a standard solid wire and a metal-cored wire.
Ngoc Quang Trinh, Shinichi Tashiro, Tetsuo Suga, Tomonori Kakizaki, Kei Yamazaki, Ackadech Lersvanichkool, Hanh Van Bui, Manabu Tanaka   +7 more
doaj   +1 more source

Stable magnetic droplet solitons in spin-transfer nanocontacts [PDF]

Nature Nanotechnology, 2014
Magnetic thin films with perpendicular magnetic anisotropy (PMA) have localized excitations that correspond to reversed dynamically precessing magnetic moments, known as magnetic droplet solitons. Fundamentally, these excitations are associated with an attractive interaction between elementary spin-excitations (i.e., magnons) and were predicted to ...
Macià Bros, Ferran, Backes, D., Kent, A. D.   +2 more
openaire   +4 more sources

Global Droplet Heat Transfer in Oxygen Steelmaking Process

Metals, 2022
Generated droplets in a basic oxygen furnace (BOF) process create an interfacial area between metal and slag/emulsion that helps in heat transfer during different stages of the blowing period.
Nirmal Madhavan, Geoffrey A. Brooks, M. Akbar Rhamdhani, Bapin K. Rout, Aart Overbosch   +4 more
doaj   +1 more source

Effect of Increasing Oscillation Width on the Arc Characteristics and Droplet Transfer Behavior of X80 Steel in the Overhead Welding Position of Narrow Gap P-GMAW

Metals, 2023
In the welding process of thick plate narrow gap pulse gas metal arc welding (P-GMAW) overhead welding station, the arc characteristics and droplet transfer behavior that become more complex due to the combined effects of narrow gap groove, gravity, and ...
Yang Bao, Ruilei Xue, Jianping Zhou, Yan Xu   +3 more
doaj   +1 more source

Dynamic control of current and voltage waveforms and droplet transfer for ultrasonic-wave-assisted underwater wet welding

Materials & Design, 2019
Ultrasonic vibration can change the dynamic behavior of the bubble and improve the process stability in underwater wet welding (UWW); thus, it has been attempted to profitably control metal transfer process.
Jianfeng Wang, Qingjie Sun, Shaojun Hou, Tao Zhang, Peng Jin, Jicai Feng   +5 more
doaj   +1 more source

Effects of Oscillation Width on Arc Characteristics and Droplet Transfer in Vertical Oscillation Arc Narrow-Gap P-GMAW of X80 Steel

Metals, 2023
In fields, such as oil and gas pipelines and nuclear power, narrow-gap welding has often been used for the connection of thick and medium-thick plates.
Hongsheng Liu, Ruilei Xue, Jianping Zhou, Yang Bao, Yan Xu   +4 more
doaj   +1 more source

Numerical Simulation of Single-Droplet Dynamics, Vaporization, and Heat Transfer from Impingement onto Static and Vibrating Surfaces

Fluids, 2020
A numerical study is presented to examine the behavior of a single liquid droplet initially passing through air or steam, followed by impingement onto a static or vibrating surface. The fluid dynamic equations are solved using the Volume of Fluid method,
J. Thalackottore Jose, J. F. Dunne
doaj   +1 more source

Numerical investigation of local heat transfer characteristics of an oblique droplet impacting a wetted wall

Case Studies in Thermal Engineering, 2019
In this study, the flow dynamics and heat transfer process of a single droplet obliquely impacting a wall covered by a thin liquid film are investigated numerically based on the volume of fluid method, with the impact angle ranging from 0° to 45°.
Qi Yang, X.H. Wang, L. Zhu, R.J. Wang, J.Q. Zhao   +4 more
doaj   +1 more source

Study on Flight Dynamics and Heat Transfer Solidification of Metal Droplets during Centrifugal Spray Deposition Forming Process

Metals, 2023
Centrifugal spray deposition forming technology, which is used in the preparation process of near-net-forming billets, not only reduces the macroscopic segregation and refines the microstructures of billets but also has the characteristics of a rapid ...
Peng Li, Shizhong Wei, Xianqing Lei, Lu Yang, Bo Sun   +4 more
doaj   +1 more source