Results 11 to 20 of about 550,989 (293)

Dean migration mechanisms: facilitating the control of microbial contaminants in cell therapy product manufacturing [PDF]

Microsystems & Nanoengineering
Cell therapy products are rapidly transforming clinical practice, but their short shelf-lives and inability to undergo terminal sterilization create major challenges for sterility testing. Conventional rapid microbiological methods (RMMs) are hindered by
Junhao Tan, Jianbo Yang, Junjie Huang, Ziming Huang, Liang Xu, Weizhao Yao, Chengshun Shen, Ming Zhao, Luping Zhou   +8 more
doaj   +2 more sources

Unsteady dean flow of dusty fluids between two oscillating cylinders

Proceedings of the Nigerian Society of Physical Sciences
This study investigates the unsteady Dean flow of dusty, viscous, incompressible fluids confined between two oscillating concentric horizontal cylinders under a semi-analytical framework based on Laplace transformation, which is preferred over fully ...
Jibrin Danjuma Yahaya, Benedict Celestine Agbata, Olayiwola Rasaq Oyeyemi, Muhammed Raji, Isaac Adaji, Danjuma Abdul Yusuf, Emmanuel Olorunfemi Senewo   +6 more
doaj   +2 more sources

Fluid Viscosity Measurement by Means of Secondary Flow in a Curved Channel

Micromachines, 2022
This article presents a new approach to determining the viscosity of Newtonian fluid. The approach is based on the analysis of the secondary Dean flow in a curved channel.
Maxim I. Pryazhnikov, Anton S. Yakimov, Ivan A. Denisov, Andrey I. Pryazhnikov, Andrey V. Minakov, Peter I. Belobrov   +5 more
doaj   +1 more source

The Physics and Manipulation of Dean Vortices in Single- and Two-Phase Flow in Curved Microchannels: A Review

Micromachines, 2023
Microchannels with curved geometries have been employed for many applications in microfluidic devices in the past decades. The Dean vortices generated in such geometries have been manipulated using different methods to enhance the performance of devices ...
Yeganeh Saffar, Sina Kashanj, David S. Nobes, Reza Sabbagh   +3 more
doaj   +1 more source

Role of exponentially decaying/growing time-dependent pressure gradient on unsteady Dean flow: a Riemann-sum approximation approach

Arab Journal of Basic and Applied Sciences, 2021
Our study probes the impact of an exponentially decaying/growing time-dependent pressure gradient on unsteady Dean flow in a curved concentric cylinder.
Basant K. Jha, Dauda Gambo
doaj   +1 more source

Numerical and Experimental Study of Cross-Sectional Effects on the Mixing Performance of the Spiral Microfluidics

Micromachines, 2021
Mixing at the microscale is of great importance for various applications ranging from biological and chemical synthesis to drug delivery. Among the numerous types of micromixers that have been developed, planar passive spiral micromixers have gained ...
Omid Rouhi, Sajad Razavi Bazaz, Hamid Niazmand, Fateme Mirakhorli, Sima Mas-hafi, Hoseyn A. Amiri, Morteza Miansari, Majid Ebrahimi Warkiani   +7 more
doaj   +1 more source

Flow study of Dean’s instability in high aspect ratio microchannels

Scientific Reports, 2023
AbstractDean’s flow and Dean’s instability have always been important concepts in the inertial microfluidics. Curved channels are widely used for applications like mixing and sorting but are limited to Dean’s flow only. This work first reports the Dean’s instability flow in high aspect ratio channels on the deka-microns level for $$De>162$$
Wong, Yu Ching, Dai, Cheng, Xian, Qingyue, Yan, Zhaoxu, Zhang, Ziyi, Wen, Weijia   +5 more
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Order breaking in Dean flow

Physics of Fluids A: Fluid Dynamics, 1991
The idea of combining large vortical structures in the flow with the dynamical behavior of open systems to enhance heat transfer and mixing has led to the design and construction of an experimental apparatus to study order breaking in such systems.
LEGUER, Y, PEERHOSSAINI, H
openaire   +3 more sources

Conception of a compact flow boiling loop for the International Space Station- First results in parabolic flights

Comptes Rendus. Mécanique, 2023
The design of a pipe flow boiling experiment for the International Space Station is proposed, taking into account typical weight, power consumption and size constraints. The effect of singularities such as elbows upstream the test section is investigated.
Chorin, Paul, Boned, Antoine, Sebilleau, Julien, Colin, Catherine, Schoele-Schulz, Olaf, Picchi, Nicola, Schwarz, Christian, Toth, Balazs, Mangini, Daniele   +8 more
doaj   +1 more source

Solitary coherent structures in viscoelastic shear flow: computation and mechanism [PDF]

, 2000
Starting from stationary bifurcations in Couette-Dean flow, we compute nontrivial stationary solutions in inertialess viscoelastic circular Couette flow.
A. Groisman, A. Groisman, A. Groisman, A. N. Brooks, B. M. Baumert, C. J. S. Petrie, E. S. G. Shaqfeh, G. S. Beavers, H. Giesekus, H. Rubin, J. M. Marchal, K. Arun Kumar, M. M. Denn, Michael D. Graham, R. B. Bird, R. G. Larson, R. G. Larson, R. H. Thomas, R. Seydel, S. K. Datta, Y. L. Joo, Y. Maday, Y. Saad, Y. Saad, Z.-S. Sun   +24 more
core   +2 more sources