Aerodynamic :: Mechanical analysis and fluid simulation

Aerodynamics is the study of air motion and movement, especially when and where the air contact with a solid. Aerodynamic is a sub-field of fluid dynamics (mechanical engineering) and gas dynamics, and many aspects of aerodynamics theory are common with them. The term aerodynamics is often used with gas dynamics, the difference being that "gas dynamics" applies to the study of the motion of all gases, and is not limited to air.

The rules of aerodynamics explain us how an airplane is able to fly. Anything that moves through air reacts to aerodynamics. Aerodynamics acts on cars, trains, ships and even motorcycles since air flows around them.

There are four main forces in aerodynamic which are lift, weight, thrust and drag. These forces make an object move up and down, and faster or slower. The aerodynamic forces do not just apply to moving objects but also it applies to buildings and structures by wind. So the aerodynamic application is not limited to transportation.

The building and environmental aerodynamics is dealing with fluid flow in the atmospheric boundary layer. Emphasis is given to the analysis of wind flow within the influence area of buildings and to the resulting wind loads on buildings and structures as well as to the study of the wind comfort and pollutant dispersion in urban areas.

CFD simulation offers the ability to conduct comprehensive, automated, multi-point optimization of designs. This process allows engineers to automatically optimize a design to a given set of performance parameters and can be used to minimize drag, or maximize mass flow or lift forces to given targets.

Aerodynamic CFD simulations includes:

- Car, Train, Ship Aerodynamics

- Drag reduction and performance optimization

- Structure Wind Load