CFD Modeling of Water Flow Through Sudden Contraction and Expansion in a Horizontal Pipe


  • V.V.R. Kaushik IIT Kharagpur
  • S. Ghosh IIT Kharagpur
  • G. Das IIT Kharagpur
  • P.K. Das IIT Kharagpur


This paper deals with the use of commercial CFD software in teaching graduate level computational fluid dynamics. FLUENT 6.3.26 was chosen as the CFD software to teach students the entire CFD process in a single course. The course objective is to help students to learn CFD, use it in some practical problems and analyze as well as validate the simulation results with published data to enhance their understanding of design issues related to flow problems. Apart from the basic concepts of CFD, students are exposed to grid generation software GAMBIT. They also learn to set up physical model, solver and post processing the results in FLUENT. After that they try to analyze the data independently to address some design issues based on the results.

Author Biographies

V.V.R. Kaushik, IIT Kharagpur

V.V.R. Kaushik obtained his Bachelor of Technology degree in chemical engineering from the Indian Institute of Technology, Kharagpur, India. At present he is working as graduate engineering trainee in an oil company.

S. Ghosh, IIT Kharagpur

S. Ghosh received her Master’s of Technology degree from the Department of Cryogenic Engineering, Indian Institute of Technology, Kharagpur, in 2006 and is continuing there as a doctoral student. Her research interests are experimental and numerical techniques of multiphase flow. She has published three articles in well recognized international journals to date.

G. Das, IIT Kharagpur

G. Das is a professor in the Department of Chemical Engineering at Indian Institute of Technology, Kharagpur, India. Her research interests include multiphase flow, two-phase instrumentation, and computational fluid dynamics. She has published more than 60 articles in reputed journals and conference proceedings. She has several patents from her research work. She is involved with a number of research projects and provided consultancy to various public and private industries.

P.K. Das, IIT Kharagpur

P.K. Das is a professor in the Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur. His research activities cover various topics of thermo fluids engineering, such as multiphase flow; extended surface heat transfer; analysis, optimization, and dynamic simulation of heat exchangers; thermal hydraulics of natural circulation loops; rewetting of hot solids; heat transfer in nano fluids; and hydraulic jump. He has published several book chapters and around 100 refereed international journal papers. He also has several patents. He has executed a number of projects funded by different funding agencies and provided consultancy to various public and private industries. He is a fellow of the Indian National Academy of Engineering.