# Aerodynamics Made Easy - Motorbike CFD Analysis Explained | Step-by-Step Guide

#### Aerodynamics Made Easy - Motorbike CFD Analysis Explained | Step-by-Step Guide

Sample project: https://app.airshaper.com/simulations/dotto-creations-airshaper-motogp-challenge-aero-update-3 More information: https://www.airshaper.com or info@airshaper.com In this video is a step by step explanation of how to use CFD simulations to analyze the aerodynamics of a motorbike. We used the 3D model created by Dotto Creations, a fantastic design agency in Italy, who teamed up with AirShaper for the Motorbike Aerodynamics Challenge in 2023. ---Setup--- The AirShaper platform was used to set up the simulation. The motorbike was oriented forward and a rotation was added to all of the wheels. ---Results--- - Pressure clouds (iso-surface for the total pressure coefficient of 0): These illustrate where energy losses are high. This highlights the drag caused by the front suspension, mirrors, wind screen, rider, exposed wheels, the drivetrain, etc. - Pressure map: this one illustrates the pressure perpendicular to the surface. It clearly shows the pressure buildup at the front and on the exposed front wheels. It also shows the pressure reduction in locations where the air speeds up to move around a curvature. - Friction map: this one shows the magnitude of the friction force of the air flowing parallel to the surface. When low, this can indicate either stagnation of the flow (at the nose for example) or separation of the flow (on the back of the rider, just behind the wind screen, ...). The surface streamlines indicate how the air moves across the surface. - 3D streamlines: these show how the air flows around the wind screen, in between the front wheel & the cover, ... - Noise: this is an estimation of the sources of wind noise. As this is a steady stage RANS simulation, it is just an approximation based on the turbulent kinetic energy. - Elements: the flow through the radiator is visualized and the total flow rate is calculated. - Forces: the forces on each individual element are calculated.