A fan is a powered machine used to create airflow. A fan consists of a rotating arrangement of blades or vanes, usually made of wood, plastic, or metal, that act on the air. The rotating assembly of blades and hub is called the impeller, rotor or runner. Usually, it's contained in some form of casin Read More

When the distance between moving and stationary blades increases, the influence of potential flow interference decreases much faster than that of wake velocity change. Read More

The centrifugal fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced draft in boilers and industrial furnaces; cooling and in air conditioning equipment and household appliances. Read More