“…The finite element method (FEM) is a numerical and computer based technique of solving a variety of practical engineering problems that arise in different fields such as, in heat transfer, fluid mechanics (Srinivasa Raju et al 2015;Bhargava and Rana, 2011;Sheri and Raju, 2015, Sheri and Raju , 2016, Sivaiah and Raju, 2013, chemical processing (Lin and Lo, 2003)), rigid body dynamics (Dettmer and Peric, 2006), solid mechanics (Hansbo and Hansbo, 2003), and many other fields. It is recognized by developers and users as one of the most powerful numerical analysis tools ever devised to analyze complex problems of engineering.…”