scholarly journals Determination of the boundary shear stress of the two-phase system on the example of a pharmaceutical mixture

2020 ◽  
Author(s):  
Y. Y. Dolomakin
Keyword(s):  
Shear Stress ◽  
Phase System ◽  
Two Phase ◽  
Boundary Shear ◽  
Boundary Shear Stress

Interphase distribution of 2-furylethylenes

1985 ◽  
Vol 50 (8) ◽  
pp. 1642-1647 ◽  
Author(s):  
Štefan Baláž ◽  
Anton Kuchár ◽  
Ernest Šturdík ◽  
Michal Rosenberg ◽  
Ladislav Štibrányi ◽  
...  
Keyword(s):  
Partition Coefficient ◽  
Partition Coefficients ◽  
Transport Rate ◽  
Phase System ◽  
Two Phase ◽  
Interphase Distribution ◽  
Distribution Kinetics ◽  
System 1 ◽  
Kinetics Of

The distribution kinetics of 35 2-furylethylene derivatives in two-phase system 1-octanol-water was investigated. The transport rate parameters in direction water-1-octanol (l1) and backwards (l2) are partition coefficient P = l1/l2 dependent according to equations l1 = logP - log(βP + 1) + const., l2 = -log(βP + 1) + const., const. = -5.600, β = 0.261. Importance of this finding for assesment of distribution of compounds under investigation in biosystems and also the suitability of the presented method for determination of partition coefficients are discussed.

scholarly journals Boundary Shear Stress Analysis in Meandering Channels at the Bend Apex

2015 ◽  
Vol 4 ◽  
pp. 812-818 ◽  
Author(s):  
Sovan Sankalp ◽  
Kishanjit. K. Khatua ◽  
Arpan Pradhan
Keyword(s):  
Shear Stress ◽  
Stress Analysis ◽  
Meandering Channels ◽  
Boundary Shear ◽  
Boundary Shear Stress

FLOOD HYDRAULICS DUE TO EMERGENT VEGETATION ALONG A RIPARIAN ZONE IN MEANDERING CHANNELS

2016 ◽  
Vol 78 (9-4) ◽  
Author(s):  
Zulkiflee Ibrahim ◽  
Zulhilmi Ismail ◽  
Sobri Harun ◽  
Koji Shiono ◽  
Nazirah Mohd. Zuki ◽  
...  
Keyword(s):  
Shear Stress ◽  
Flow Resistance ◽  
Riparian Zone ◽  
Streamwise Vorticity ◽  
Floodplain Vegetation ◽  
Meandering Channel ◽  
Meandering Channels ◽  
Boundary Shear ◽  
Residential Properties ◽  
Boundary Shear Stress

Frequent floods around the globe including recent events in several states in Malaysia have damaged the residential properties, infrastructures and crops or even deaths. Clearing vegetations or trees on the floodplain has been pointed out as a contributing factor to the damages. Thus, the influence of floodplain vegetation on the river hydraulics during flooding must be better understood. The hydraulics of flood flows in non-erodible vegetated meandering channel was experimented in the laboratory where two-lined steel rods were installed along a riparian zone to simulate as trees. The stage-discharge relationship, flow resistance, depth-averaged velocity, streamwise vorticity and boundary shear stress patterns during shallow and deep flood inundations were studied. The findings showed that floodplain vegetation had increased the channel flow depth by 32% and its flow resistance. The velocity in vegetated zone was lowered and the shear stress reduced by 86.5% to 91% along the river meander. In addition, the trees also limit flow interaction between main channel and floodplain

Modelling boundary shear stress in highly sinuous meandering channels

2013 ◽  
Vol 20 (2) ◽  
pp. 161-168 ◽  
Author(s):  
M. Patnaik ◽  
K.C. Patra ◽  
K.K. Khatua ◽  
L. Mohanty
Keyword(s):  
Shear Stress ◽  
Meandering Channels ◽  
Boundary Shear ◽  
Boundary Shear Stress

scholarly journals Modeling effects of bank friction and woody bank vegetation on channel flow and boundary shear stress in the Rio Puerco, New Mexico

2005 ◽  
Vol 110 (F4) ◽  
pp. n/a-n/a ◽  
Author(s):  
E. R. Griffin ◽  
J. W. Kean ◽  
K. R. Vincent ◽  
J. D. Smith ◽  
J. M. Friedman
Keyword(s):  
Shear Stress ◽  
New Mexico ◽  
Channel Flow ◽  
Boundary Shear ◽  
Boundary Shear Stress
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