polar fluid
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2021 ◽  
Vol 4 (1) ◽  
pp. 14
Author(s):  
Mohammad Khorsand Ahmadi ◽  
Wei Liu ◽  
Alex Henzen ◽  
Hans Wyss

Electrokinetic displays are among the most important display technologies because of their low power consumption, wide viewing angle, and outdoor readability. As a result, they are regarded as excellent candidates for electronic paper. These types of displays are based on the controlled movement of charged pigment particles in a non-polar liquid under the influence of an electric field. Free charges practically do not exist in nonpolar colloids due to their low dielectric constant. However, the addition of a surfactant to non-polar colloids often leads to considerable charge-induced effects, such as increased electrical conductivity and particle stabilization. In this project, we aim to develop a novel electrokinetically driven display. An unprecedented display device is proposed, based on the concerted action of electro-osmosis and electrophoresis in a non-polar fluid. This method could reduce the switching time required to display information, and extend the applications of electrokinetic displays, enabling increased video speed and full color in the future.


Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1072
Author(s):  
Vladimir Shelukhin

We develop a new mathematical model for rotational sedimentation of particles for steady flows of a viscoplastic granular fluid in a concentric-cylinder Couette geometry when rotation of the Couette cell inner cylinder is prescribed. We treat the suspension as a micro-polar fluid. The model is validated by comparison with known data of measurement. Within the proposed theory, we prove that sedimentation occurs due to particles’ rotation and rotational diffusion.


2020 ◽  
Vol 32 (7) ◽  
pp. 2939-2949
Author(s):  
Sanjay Kumar Pandey ◽  
Subhash Chandra
Keyword(s):  

Heat Transfer ◽  
2020 ◽  
Vol 49 (6) ◽  
pp. 3943-3957 ◽  
Author(s):  
Lipika Panigrahi ◽  
Jayaprakash Panda ◽  
Devendra Kumar ◽  
Sudhansu S. Sahoo

2020 ◽  
Vol 50 (3) ◽  
pp. 209-214
Author(s):  
Debasish Dey ◽  
Madhurya Hazarika

Abstract-- The entropy generation of hydro-magnetic stagnation point flow of micro-polar fluid with energy transfer has been analyzed numerically. An uniform magnetic field is applied normal to the plate. The partial differential equations are transformed into ordinary differential equations using similarity transformations. The effects of magnetic parameter, material parameter, Prandtl number, Grashof number on the flow and entropy generation are discussed and plotted graphically using the MATLAB built in bvp4c solver.


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