Journal of Innovative Research in Engineering Sciences



Numerical simulation of the turbulent fluid column movement with Open FOAM software

Sajjad rastad, mehdi Ahmadi, Amir oloomi

The turbulent flow of natural disasters is a major event that can lead to a major catastrophe with devastating lives. In addition to the complex nature of the flow, the existence of environmental barriers and conditions changes the pattern of rapid changes in the flow, which causes the complexity of the problem. The purpose of this study is to investigate the capability and efficiency of a finite volume method in two-phase fashion in modeling the motion of a fluid column. For better and more accurate modeling, two-phase flow equations have been used, as well as Open FOAM code has been used to achieve this goal. Gambit software was used to build geometry and mesh the model. The geometry, dimensions, mesh size, and boundary name of the software are made in this software and then transferred to an Open FOAM software using an interface file. Modeling is two-dimensional and for the accuracy of the results obtained from numerical and laboratory studies, other researchers have been used. In order to use the optimal network, five different mesh types were chosen and the resulting model results were compared and the best solution grid was selected and used for all models. The built-in models include the movement of the fluid column in a dry, wet bed and against a barrier. The results show that the present model has a proper function in simulating the above problems and can simulate results with good accuracy compared to experimental and numerical results.

Keyword:1- turbulent stream
Keyword:2- two-phase flow
Keyword:3- limited volume
Keyword:4- Open FOAM software

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