Development Of an Automated CFD-BASED Optimization Workflow For Automotive Aerodynamic Application

Hong, Mun Hoh (2017) Development Of an Automated CFD-BASED Optimization Workflow For Automotive Aerodynamic Application. Project Report. UTeM, Melaka. (Submitted)

Text Development Of an Automated CFD-BASED Optimization Workflow For Automotive Aerodynamic Application - Hong Mun Hoh - 24 Pages.pdf - Submitted Version Download (2MB)

Abstract

Aerodynamic design plays an important role in the field of automotive application as it might become one of the main elements that can contribute to sustainable development in the future by improving the fuel efficiency. As a result, a powerful optimization tool or workflow is required to optimize the complicated configurations of parameters related to aerodynamic automotive application. The purpose of this project is to develop a CFD-based optimization workflow to automate an optimization process of aerodynamic automotive application. Three cases which related to the aerodynamic parameters in automotive application are applied with a sequence of optimization methods. Screening method followed by Non-Linear Programming Quadratic Lagragian (NLPQL) method in order to verify the workflow. The three cases are the design of airfoil shape with the minimum total drag coefficient, the angle of attack ofNACA 0012 airfoil profile with maximum downforce generated and the effect of AoA of rear spoiler against the drag and lift coefficient on a 30 Ahmed Model. Before the application of the optimization workflow. the models in three cases need to be meshed and simulated by specific settings and boundary condition. Next, the cases are applied with Screening followed by NLPQL optimizations methods to determine the optimal solution. The optimal results from the workflow of optimization processes are compared to the result from previous findings and proved that Screening followed by NLPQL optimization methods is a good approach of workflow to resolve optimization problems that related to aerodynamic automotive application automatically.

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