Results 81 to 90 of about 29,832 (302)

A General Workflow for Tangential Flow Filtration Perfusion Scale‐Up

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Tangential flow filtration (TFF) perfusion using hollow‐fiber modules offers substantial advantages over other mammalian cell retention technologies. Recently, increased awareness of Starling flow has helped to enhance filtration performance to similar, or even higher levels compared to alternative technologies.
Patrick Romann, Ken Lee, Venkatesh Natarajan, Daniel Ley, Claes Nymand Nilsson, David Garcia‐Munzer, Dominik Schieman, Mahbod Hajighasemi, Alex Zaytsev, Jason Friedman, Loic Chappuis, Tobias Habicher, Colin Jaques, Alex Cohen, Matthew Gagnon, Edward Chan, Daniel J. Karst, Philip Giller, Antony Sibilia, Andrew L. Zydney, Thomas K. Villiger   +20 more
wiley   +1 more source

Numerical Simulations of Turbulent Gas-solid Flow in a Gradual Expansion [PDF]

Journal of Applied Fluid Mechanics
Modeling efforts on turbulent gas-solid flows have mainly focused on studying particle-laden flows in channels and pipes. Despite its significance for industrial applications, the study of gas-solid flows in sudden or gradual expansions is less common in
A. Benavides-Moran, S. Lain
doaj   +1 more source

Graphene Materials for Sustainable Energy Applications: A Contemporary Perspective

Carbon Energy, EarlyView.
ABSTRACT Graphene has garnered significant attention as a promising material with great potential for contributing to sustainable energy initiatives, such as RE100 (100% renewable energy initiative) and CF100 (100% carbon‐free initiative). This review aims to explore the potential of graphene for advancing renewable energy applications by highlighting
Niraj Kumar, Seul‐Yi Lee, Roop L. Mahajan, Soo‐Jin Park   +3 more
wiley   +1 more source

Theory of x-ray photon correlation spectroscopy for multiscale flows

Physical Review Research
Complex multiscale flows associated with instabilities and turbulence are commonly induced under high-energy density (HED) conditions, but accurate measurement of their transport properties has been challenging.
Hao Yin, Charles Heaton, Eric G. Blackman, Arianna E. Gleason, Joshua J. Turner, Gilbert W. Collins, Gianluca Gregori, Jessica K. Shang, Hussein Aluie   +8 more
doaj   +1 more source

Turbulence Model Assessment in Compressible Flows around Complex Geometries with Unstructured Grids

Fluids, 2019
One of the key factors in simulating realistic wall-bounded flows at high Reynolds numbers is the selection of an appropriate turbulence model for the steady Reynolds Averaged Navier−Stokes equations (RANS) equations.
Guillermo Araya
doaj   +1 more source

Automated Process Optimization in a Novel Triple Shaft Mixer with Adaptive Mixing Modes

Chemie Ingenieur Technik, EarlyView.
A novel multi‐purpose mixer with adjustable blade angle and a coaxial stirrer is developed, providing three degrees of freedom. An optimization strategy is integrated to autonomously identify optimal operating conditions through automated tests. The current draw of the main stirrer serves as the optimization criterion, while stirrer speeds, directions,
B. Schwarz, H. Kniele, J. A. Lindner
wiley   +1 more source

Antisolvent crystallization of lithium hydroxide monohydrate: Significant factors and kinetics analysis

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Crystallization is the final stage in lithium hydroxide monohydrate (LiOH · H2O) production, and antisolvent crystallization offers a lower‐energy route compared with evaporative methods. In this study, we investigated bench‐scale ethanol‐based antisolvent crystallization of LiOH · H2O, and identified the significant impact parameter via a ...
Chentao He, Liuyin Xia
wiley   +1 more source

A Two-Time-Scale Turbulence Model and Its Application in Free Shear Flows

Applied Sciences
A novel three-equation turbulence model has been proposed as a potential solution to overcome some of the issues related to the k–ε models of turbulence.
Mehmet Zafer Gul, Murat Umut Yangaz, Serhat Sen   +2 more
doaj   +1 more source

Comparison of numerical results of linear and nonlinear turbulence models based on the rans approach [PDF]

E3S Web of Conferences
This paper considers one of the urgent problems of modern physics — numerical solution of turbulent flows, which play a key role in various fields of science and technology, including aerodynamics, hydrodynamics and heat transfer processes.
Madaliev Murodil, Yunusaliev Elmurad, Abdulkhaev Zokhidjon, Otakulov Bakhromjon, Yusupov Sardorbek, Ergashev Ilhom, Tohirov Islomjon   +6 more
doaj   +1 more source

Comparison of modelling approaches for liquid fluidized beds

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study presents a comparison of three promising numerical models for the detailed simulation of liquid–solid fluidized bed. These models differ in their treatment of the solid phase, ranging from treating each particle individually to treating the collection of particles as a continuum.
Andreu Bernad‐Serra, Furkhat Khamitov, Olli H. Sorvari, Ville Alopaeus   +3 more
wiley   +1 more source