Sentence examples similar to duct element from inspiring English sources

It is of engineering importance to predict the flow-generated noise caused by air duct elements in ventilation systems at the design stage.

It is obvious that vectors describing all the duct elements in a thick section could be extracted from that section without any necessity to refer to adjacent sections.

However, all prediction methods are based upon an isolated in-duct element that is very different from a real ventilation system.

The whistling potentiality is investigated via an acoustic energy balance for the in-duct element and good agreement with experimental data is shown.

Current design guides only provide a prediction method for aerodynamic sound produced by a single in-duct element in the ventilation system, which is usually not in accord with actual systems.

An interaction factor is finally defined as a result of a simple relationship between the sound power due to the interaction of multiple in-duct elements and that due to a single in-duct element.

The proposed method provides engineers a practical generalized technique for predicting noise produced by multiple in-duct elements.

Unavoidable discontinuities due to in-duct elements in a ventilation ductwork system result in the generation of localized turbulence.

An interaction factor βm is therefore proposed to take account of the interaction effects of multiple in-duct elements.

The flow-generated noise problem caused by in-duct elements is due to the complicated acoustic and turbulent interactions of multiple in-duct flow noise sources.

A number of investigators have tried to develop a generalized prediction method for flow-generated noise produced by in-duct elements in a ventilation system.