Abstract
Flexural orifices have several advantages over conventional rigid orifices, such as low pressure drop and linear characteristics between flow rate and pressure difference. However, these characteristics are affected by not only beam length but also flexural rigidity. Moreover, the discharge coefficient and orifice pressure distribution vary with pressure difference. As a result different techniques are required for flexural orifice design.
This report presented the studies of the static characteristics by numerical and experimental methods. Two methods of orifice design are proposed. One is by the use of experimental formulae, and the other uses CAD systems.
