2014
DOI: 10.1177/0954406214542037
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The frequency response of rectangular ducts

Abstract: This article considers the oscillatory laminar flow of an incompressible fluid in a rectangular duct and expresses the flow rate due to an oscillatory pressure gradient using a frequency transfer function. For the description of the frequency characteristics, selection of a reference length suitable to the duct cross section is important. The selected reference length in this article is the radius of a circular tube whose flow rate is equal to that of the rectangular duct when the fluids are the same, and appl… Show more

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Cited by 3 publications
(2 citation statements)
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“…channel height, hydraulic diameter, etc.). 32,35,[37][38][39][40][41][42] In this study, the hydraulic diameter was considered as the characteristic length so both the effect of channel dimension and geometry were taken into account.…”
Section: Experimental Fluidmentioning
confidence: 99%
“…channel height, hydraulic diameter, etc.). 32,35,[37][38][39][40][41][42] In this study, the hydraulic diameter was considered as the characteristic length so both the effect of channel dimension and geometry were taken into account.…”
Section: Experimental Fluidmentioning
confidence: 99%
“…Various numerical studies defined the characteristic length differently based on the channel shape (e.g., channel height and hydraulic diameter) [113][114][115][116][117][118][119][120]. In the current study, the hydraulic diameter was considered as the characteristic length so the effects of both the channel dimensions and geometry were taken into account.…”
Section:  / Rementioning
confidence: 99%