Computational-Fluid-Dynamics (CFD): A more Physical Approach

Date and Time: 15th May 2018, 4:00 to 5:00 PM

Venue: Room no. 207

Almost all the physics based simulation software involves numerical solution of system of Linear-Algebraic-Equations (LAEs). The governing LAEs are derived from continuous-mathematics based partial-differential-equations (PDEs), using mostly Finite-Element-Method (FEM) in computational solid mechanics and Finite-Volume-Method (FVM) in Computational-Fluid-Dynamics (CFD). The FVM based algebraic-formulation in CFD involves application of volume integral and Gauss-divergence theorem to the governing PDEs (continuity, momentum, and energy equations) - a mathematical approach of FVM. Here, a more physical approach of FVM is presented for the derivation of the governing LAEs in CFD; considering a discrete-mathematics (PDE free) based application of mass, momentum, and energy conservation laws. Statements for application of these physical laws to an elemental control-volume (CV) are presented in two different forms: continuous and discrete. Application of continuous-mathematics to the continuous-form leads to a differential-formulation while application of discrete-mathematics to the discrete-form leads to an algebraic-formulation – a physical approach of FVM; based on physical law and discrete-mathematics. The objective is to demonstrate that the algebraic-formulation is any computational course should involve discrete-mathematics - independent of continuous-mathematics - presented recently in a text book (Atul Sharma, Introduction to Computational Fluid Dynamics: Development, Application and Analysis, 412 pages, John Wiley & Sons Ltd. (HB edition) and Anebooks Pvt. Ltd., 2017 (PB edition): This results in a better physical understanding of the algebraic-formulation and may lead to more physically realistic numerical models. It will also enable startups on development of apps (application-software) for various engineering applications - leading to Make CFD-Software in INDIA.

Dr. Atul Sharma is currently Professor in the Department of Mechanical Engineering at Indian Institute of Technology (IIT) Bombay, with a teaching experience of more than 15 years. After completing his M.E. from Indian Institute of Science, Bangalore, he worked as a Lecturer at National Institute of Technology, Hamirpur (H.P.), where he introduced and taught a course on CFD. Later in 2004, he obtained his Ph.D. from IIT Kanpur; and worked on all the three aspects of CFD, i.e., Development, Application and Analysis. He taught CFD through distance education mode at IIT Bombay, from 2007-2010. He also delivered a course on CFD to more than 1400 college teachers from different parts of INDIA in 2012, as a part of a project under National Mission on Education. He has recently authored a text-book on Introduction to Computational Fluid Dynamics: Development, Application and Analysis, John Wiley & Sons Ltd. & Athena Academic, UK, 2016. He is currently working on CFD development, application, and analysis for various types of multi-phase flow and fluid-structure interaction problems. He was a CFD consultant (2010-2014) for Global R&D, Crompton Greaves Limited, Mumbai. He is serving as Secretary, National Society of Fluid Mechanics and Fluid Power, since December 2014. He has more than 50 international journal publications and graduated 8 Ph.D. students so far.

Message From Director

IIT Bhilai is striving for research-driven undergraduate and postgraduate education. Our objective is to create an education system with multifacet outcomes including research, entrepreneurship, technical leadership, and above all, responsible citizenship. Read More


Subscribe to our Newsletter and stay tuned.