Comparative study of hatchback vehicles through modelling and computational tools

The purpose of this research is to explore the world Computer-Aided Modelling and then apply its tools benefit automotive sector. Three commercially available economical vehicles in Pakistan, namely (i) Daihatsu Mira X, (ii) Honda N-One (iii) Suzuki Wagon R, have been virtually modelled Design (CAD) software by using CATIA-V5R19. This focuses on providing all steps that are needed transform an existing real vehicle body a virtual body. Detailed comparisons three hatchback performed which determined most crucial factors affect performance vehicle. Computational fluid dynamics (CFD) analysis also SolidWorks flow simulation tool. base drag lift coefficients selected computed compared. Furthermore, influence different diffuser angles aerodynamics characteristics investigated. at find out optimum angle diffuser. With increase angle, it found total coefficient decreases but there not much effect for vehicles. In addition, study revealed X stable fuel economic among considered because lower centre gravity co-ordinates smaller values angles.