1. Department of Mechanical Engineering , CMS College of Engineering and Technology , Coimbatore 641 032 , Tamil Nadu , India
2. Department of Mechanical Engineering , Sri Krishna College of Engineering and Technology , Coimbatore 641 008 , Tamil Nadu , India
3. Department of Mechanical Engineering , KPR Institute of Engineering and Technology , Coimbatore 641 048 , Tamil Nadu , India
4. Faculty of Mechanical Engineering , Jimma Institute of Technology, Jimma University , Jimma , Ethiopia