Axial Flow Fan Blade Design

Pᵢ is the pressure of the air at the inlet edge of the fan blades.

Axial flow fan blade design.

A shaft drives a central drum which is retained by bearings inside of a stationary tubular casing. W is the width of the blades in a centrifugal fan parallel to the axis of rotation of the impeller. Guides or stator vanes serve to smoothen straighten the airflow and improve efficiency. An optimal design of axial flow fan blades by the machining method and an artificial neural network show all authors.

National huwei institute of technology department of automation engineering yunlin taiwan see all articles by this author. Search google scholar for this author. Three design options straight blades c type blades and forward swept blades are examined in this paper. Axial compressors consist of rotating and stationary components.

Surging or the unstable flow causing complete breakdown in fans is mainly contributed by the three factors. In this video we ll be demonstrating the aerodynamic design of an axial low pressure fan including a cfd simulation. Consider the use of the term fan static pressure there are two terms used for fans namely fan total pressure and fan static pressure. Stalling occurs only if there is insufficient air entering into the fan blades causing separation of flow on the blade surface.

Taking an axial fan as the research object the whole 3d numerical simulation was conducted by using ansys cfx. Page 7 of 35 the basics of axial flow fans fan ring diameter inside diameter of fan housing at the plane of fan. Axial flow fans as the name indicate draws the air and blows forward which moves in the axis of the fan there would be no centrifugal effect on the airflow generated.