Moving Train External Airflow CFD Simulation, ANSYS Fluent Training

Advanced moving train aerodynamic design is an effective factor in reducing energy consumption. This reduction is possible when the drag force, exerted from the fluid is decreased. Therefore, aerodynamics plays an important role in the design of trains or any moving object that is exposed to airflow. Computational fluid dynamics simulations have reduced the cost of building trains and locomotives, and have made it possible to check the efficiency of the new design before construction. In this project, the airflow around a train is investigated and airflow parameters were extracted by ANSYS Fluent software. Due to the high speed of the train and the speed of airflow, phenomena such as separations or vortexes occur behind the train. Therefore, to better analyze the turbulent flow, the standard k-epsilon model with the use of standard wall functions is exploited. The assumptions considered in this project are: S