RT Journal Article
SR Electronic
A1 Sahel, Djamel
A1 Boudaoud, Warda
A1 Ameur, Houari
A1 Alem, Karima
T1 Numerical Investigation of the Effect of Blower Baffles on the Performance of Membrane Tubes for Water Treatment
JF Acta Mechanica Slovaca
YR 2021
VO 25
IS 1
SP 34
OP 40
DO 10.21496/ams.2021.006
UL https://www.actamechanica.sk/artkey/ams-202101-0005.php
AB Effects of blower shaped baffles on the fluid dynamics and filtration flux in a membrane tube are numerically explored. Both the staggered and inline arrangements of baffles are studied. The carbonate calcium suspensions with a concentration of 5 g/L were used as a working medium. The efficiency of filtration was determined via the calculation of velocity of fluid particles, wall shear stresses and static pressure. An increase in the shear stresses on the tube surface, as well as a formation of fluid eddies were observed with the presence an array of blower baffles, resulting thus in a significant improvement of the filtration performance. The case of the staggered baffles with pith ratio of L/D = 1 and Re = 15,000 achieved an increase in the filtration flux rate by 42% and 12%, compared with unbaffled and tube with baffle orientation angle of 180°, respectively.