Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   JULY 2017 , Volume 17 , Number 4 #P0099; Page(s) 349 To 358.
 
Paper: 

EVALUATION OF THE SLUG FLOW PARAMETERS IN A HORIZONTAL TWO-DIMENSIONAL DUCT

 
 
Author(s):  ZEYNALABEDINI MOSTAFA, ANSARI MOHAMMAD REZA*
 
* DEPARTMENT OF MECHANICAL ENGINEERING, TARBIAT MODARES UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Slug flow is one the most complicated flow regimes in industrial processes that is seen for a wide range of fluid flow. However, there are always a lot of differences between experimental and numerical studies on slug flow. Following the previous attempt on the selection of the best turbulent model for numerical simulation, the slug flow is solved two-dimensionaly with implicit VOF method and k-e RNG turbulent model using FLUENT solver to extract the slug flow parameters behavior accurately.
The differences of numerical simulation of slug flow with and without turbulent model are also presented. To overcome this procedure, a new user defined function code is developed. This UDF computes and predicts slug parameters from FLUENT solver result without increasing the computational cost. The important slug parametrs are presented which are: liquid slug body velocity, liquid film velocity, slug front and tail velocity, slug center position and length, slug front and tail positions, pressure difference across slug, wall shear stress, slug mixture velocity, slug initiation time and position from the duct inlet. These parameters are discussed in detail, then validated.

 
Keyword(s): SLUG, SIMULATION, VOF, MIXING ZONE, TURBULENCE
 
References: 
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