TY  - JOUR
T1  - Numerical and Experimental Simulation of Flow Pattern in Sudden and Gradual Canal Expansions
AU - Mamizadeh, J. AU - Ayyoubzadeh, S.A. 
JO  - Journal of Engineering and Applied Sciences
VL  - 7
IS  - 6
SP  - 389
EP  - 394
PY  - 2012
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2012.389.394
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2012.389.394
KW  - Flow pattern
KW  -symmetric flow
KW  -sudden expansion
KW  -geometry
KW  -Iran
AB  - In order to examine the flow pattern in canal with sudden 
  and gradual expansion, FLUENT software is used. In this case, 3-dimensional 
  simulations are conducted. The turbulence model is used to simulate turbulence. 
  Desired canal with coarse, medium and fine mesh size is selected for simulation. 
  The results in canal with sudden expansion showed that the vortex formed by 
  coarse mesh size and number of iteration >400 is a symmetric and for small 
  and medium mesh size is symmetric. In order to analyze experimentally and numerically 
  more closely, the pattern of flow in a flume with sudden and gradual expansion 
  is investigated. Results showed that in 11.5° angle, the pattern of asymmetry 
  in length and width of the canal is negligible but in 23.5° angle like the 
  sudden expansion, the flow pattern is asymmetric. The asymmetrical flow pattern 
  can be viewed with some minor changes such as roughness coefficient in river 
  or reservoir geometry.
ER  -