3D Eulerian-Eulerian modeling of a screw reactor for biomass thermochemical conversion. Part 1: Solids flow dynamics and back-mixing

2019 ◽  
Vol 143 ◽  
pp. 1465-1476 ◽  
Author(s):  
Xiaogang Shi ◽  
Frederik Ronsse ◽  
Jelle Roegiers ◽  
Jan G. Pieters
Keyword(s):  
Flow Dynamics ◽  
Thermochemical Conversion ◽  
Screw Reactor ◽  
Eulerian Modeling ◽  
Back Mixing

The role of the sinuses of valsalva in aortic root flow dynamics and aortic root surgery

2007 ◽  
Vol 55 (S 1) ◽  
Author(s):  
F Schoenhoff ◽  
C Loupatatzis ◽  
FS Eckstein ◽  
C Stoupis ◽  
FF Immer ◽  
...  
Keyword(s):  
Aortic Root ◽  
Flow Dynamics ◽  
Aortic Root Surgery

Studies on extraction V. Determination of back-mixing and efficiency of stagewise extractors

1966 ◽  
Vol 31 (4) ◽  
pp. 1695-1711 ◽  
Author(s):  
F. Souhrada ◽  
J. Procházka ◽  
J. Landau
Keyword(s):  
Back Mixing

Countercurrent extraction with back-mixing - Evaluation of parameters

1978 ◽  
Vol 43 (10) ◽  
pp. 2682-2706 ◽  
Author(s):  
Anna Slavíčková ◽  
Georgi Angelov ◽  
Aleš Heyberger ◽  
Jaroslav Procházka
Keyword(s):  
Countercurrent Extraction ◽  
Evaluation Of Parameters ◽  
Back Mixing

An experimental study of gas phase back mixing under the counter-current gas-liquid flow on a vertical expanded metal sheet packing by static tracer technique

1980 ◽  
Vol 45 (1) ◽  
pp. 214-221
Author(s):  
Jan Červenka ◽  
Mirko Endršt ◽  
Václav Kolář
Keyword(s):  
Gas Phase ◽  
Flow Model ◽  
Plug Flow ◽  
Packed Bed ◽  
Metal Sheet ◽  
Concentration Profiles ◽  
Expanded Metal ◽  
Gas Liquid Flow ◽  
Counter Current ◽  
Back Mixing

Gas phase back mixing has been measured in a column packed with vertical expanded metal sheet under the counter-current flow of gas and liquid by the static method using a tracer. The observed experimental concentration profiles has not confirmed our earlier proposed model of back mixing, based on the concentration profiles in absorption runs. These profiles do not even conform with the axially dispersed plug flow model currently used to describe axial mixing in packed bed columns. The concentration profiles may be described by a combination of the axially dispersed plug flow model with back flow.

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