Engineering

Car CFD

Aerodynamics is the branch of fluid dynamics concerned with studying motion of air, particularly when it interacts with a moving object. Understanding the motion of air (often called flow field) around an object enables the calculation of forces and moments acting on the object. External aerodynamics is the study of flow around solid objects of various shapes. For instance, evaluating the lift and drag on an airplane or the flow of air over a wind turbine blade.

The objective of this case is to study impact of flow over a car body and to find influence of rear wing on Coefficient of Lift & Drag.

 

 

Case Study on CFD for a Car

 

Scope of Aerodynamics

 

External Flow Phenomena of Automobile

 

Car Geometry

 

CFD Model

 

Meshed Model

 

Boundary Conditions

 

Results Velocity Contour Symmetry Plane

 

Results Velocity Contour Symmetry Planewith Rear wing

 

Results Pressure Contour Car Wall

 

Results Pressure Contour Symmetry Plane without rear wing

 

Results Pressure 2.2m Bhind YZ Plane without rear wing

 

Results Vector Symmetry Plane without rear wing

 

Results Streamlines Symmetry Plane without rear wing

 

Results Streamlines Symmetry Plane with rear wing

 

Conclusion