Fluid-Structure Interaction Analysis of a Competitive Car during Brake-in-Turn Manoeuvre

The relationship between the presented work and energy conservation is direct indirect. Most of literature related to energy-saving focuses on reducing aerodynamic drag cars, which typically leads appearance vehicle motion instabilities at high speeds. Typically, this instability compensated for by moving body components activated above a certain speed left in that position until drops. This change configuration results significant increase velocities. study shows fully coupled approach fluid–structure interaction analyses car during high-speed braking-in-turn manoeuvre. show how affects its dynamic behaviour. In work, we used novel approach, combining Computational Fluid Dynamics (CFD) analysis with Multibody Dynamic System. utilisation an overset technique allows movement computational domain. Adding Moving Reference Frame (MRF) removes all restrictions regarding trajectory velocity changes over time. We performed comparative two configurations. first one, stationary rear airfoil was base parallel trunk generating low drag. No action driver assumed. second scenario, brake activation initiates rotation reaching 0.1 s final corresponding maximum downforce generation. Also, no from up point when whole system approached downforce. To determine position, ran separated quasi-steady rotating slowly avoid transient effects. obtained importance load balance stability break-in-turn manoeuvres. They also confirm proposed methodology independent solvers analyse phenomena efficient robust. captured details caused car’s unsteady movement.