Flow Characterization Of Miscible Displacement Processes

1997 ◽  
Author(s):  
S.R. Shadizadeh ◽  
F.G. Javadpour ◽  
R. Knox ◽  
D. Menzie
Author(s):  
Behrouz Tavakol ◽  
Guillaume Froehlicher ◽  
Douglas P. Holmes ◽  
Howard A. Stone

Lubrication theory is broadly applicable to the flow characterization of thin fluid films and the motion of particles near surfaces. We offer an extension to lubrication theory by starting with Stokes equations and considering higher-order terms in a systematic perturbation expansion to describe the fluid flow in a channel with features of a modest aspect ratio. Experimental results qualitatively confirm the higher-order analytical solutions, while numerical results are in very good agreement with the higher-order analytical results. We show that the extended lubrication theory is a robust tool for an accurate estimate of pressure drop in channels with shape changes on the order of the channel height, accounting for both smooth and sharp changes in geometry.


2014 ◽  
Author(s):  
Umer Farooq ◽  
Reza Iskandar ◽  
El Sayed Moustafa Radwan ◽  
Magdy Ahmed H Hozayen

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37533-37538 ◽  
Author(s):  
M. V. N. Rodrigues ◽  
R. S. Corrêa ◽  
K. L. Vanzolini ◽  
D. S. Santos ◽  
A. A. Batista ◽  
...  

On-flow characterization of tight binders of xanthine oxidase.


1987 ◽  
Vol 10 (3) ◽  
pp. 153-172 ◽  
Author(s):  
Douglas E. Hirt ◽  
Kurt L. Adams ◽  
Robert K. Prud'homme ◽  
Ludwig Rebenfeld

2018 ◽  
Vol 141 (1) ◽  
Author(s):  
Jie Wu ◽  
H. D. Lim ◽  
Xiaofeng Wei ◽  
T. H. New ◽  
Y. D. Cui

Supersonic jets at design Mach number of 1.45 issuing from circular 30 deg and 60 deg double-beveled nozzles have been investigated experimentally and numerically in the present study, with a view to potentially improve mixing behavior. Reynolds-averaged Navier–Stokes (RANS) simulations of the double-beveled nozzles and a benchmark nonbeveled nozzle were performed at nozzle-pressure-ratios (NPR) between 2.8 and 5.0, and the results are observed to agree well with Schlieren visualizations obtained from a modified Z-type Schlieren system. Double-beveled nozzles are observed to produce shorter potential core lengths, modifications to the first shock cell lengths that are sensitive toward the NPR and jet half-widths that are typically wider and narrower along the trough-to-trough (TT) and peak-to-peak (PP) planes, respectively. Lastly, using double-beveled nozzles leads to significant mass flux ratios at NPR of 5.0, with a larger bevel-angle demonstrating higher entrainment levels.


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