Results 101 to 110 of about 20,260 (297)

Bubbly cloud dynamics and cavitation [PDF]

, 2007
In many cavitating liquid flows, when the number and concentration of the bubbles exceeds some critical level, the flow becomes unsteady and large clouds of cavitating bubbles are periodically formed and then collapse when convected into regions of ...
Brennen, Christopher E.
core  

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Simultaneous Measurement of Volumetric Flowrates of Gas-Liquid Bubbly Flow Using a Turbine Flowmeter. [PDF]

Sensors (Basel), 2023
Uchiyama T, Miyamoto S, Horie K, Takamure K.   +3 more
europepmc   +1 more source

Acoustical Absorption and Scattering Cross-Sections of Spherical Bubble Clouds [PDF]

, 1988
The present work investigates the acoustical absorption and scattering cross-sections of spherical bubble clouds subject to harmonic far field pressure excitation.
Brennen, Christopher E., d'Agostino, Luca   +1 more
core   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Numerical Simulation of Poly-Dispersed Bubbly Flow Using a Multi-Fluid Model

Journal of Fluid Science and Technology, 2007
Numerical methods for predicting poly-dispersed bubbly flows in bubble columns are indispensable in the design of bubble column reactors. The objectives of the present study are (1) to experimentally investigate the effects of a bubble size distribution ...
Munenori MAEKAWA, Naoki SHIMADA, Akira SOU, Akio TOMIYAMA   +3 more
doaj   +1 more source

Wax Deposition Law under a Gas-Liquid Bubbly Flow Pattern. [PDF]

ACS Omega, 2021
Yu X, Gao Y, Cai D, Yao W, Zhou Y, Su Y, Liu K.   +6 more
europepmc   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

An Image-Based Technique for Measuring Velocity and Shape of Air Bubbles in Two-Phase Vertical Bubbly Flows

Fluids
Bubbly flow is a flow regime common in many industrial applications involving heat and mass transfer, such as reactors, cooling systems, and separation units.
Giulio Tribbiani, Lorenzo Capponi, Tommaso Tocci, Martina Mengoni, Marco Marrazzo, Gianluca Rossi   +5 more
doaj   +1 more source

Modeling of Two-Phase Flow through a Rotating Tube with Twin Exit Branches

International Journal of Rotating Machinery, 2000
A numerical model is proposed to determine the dynamic behavior of single-phase and twophase, two-component flows through a horizontal rotating tube with identical twin exit branches. The working fluid, oil, enters the tube through a radial duct attached
Sun-Wen Cheng, Wen-Jei Yang
doaj   +1 more source