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Unformatted text preview: ive, since its calibration will be linear. To ensure laminar flow for what otherwise would be a turbu- | e-Text Main Menu | Textbook Table of Contents | Study Guide 396 Chapter 6 Viscous Flow in Ducts Fig. 6.36 A Coriolis mass flowmeter. (Courtesy of ABB Instrumentation, Inc.) lent condition, all or part of the fluid is directed into small passages, each of which
has a low (laminar) Reynolds number. A honeycomb is a popular design.
Figure 6.37 uses axial flow through a narrow annulus to effect laminar flow. The
theory again predicts Q p, as in Eq. (6.92). However, the flow is very sensitive to
passage size; for example, halving the annulus clearance increases p more than eight
measurement connection O-ring-sealed pressure connection Sintered
Electrical connector O-ring
thermometer Piston-centering seat Microprocessor
Annular laminarflow path defined
and cylinder | v v Fig. 6.37 A complete flowmeter
system using a laminar-flow element (in this case a narrow annulus). The flow rate i...
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This note was uploaded on 10/27/2009 for the course MAE 101a taught by Professor Sakar during the Spring '08 term at UCSD.
- Spring '08