Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Effects Of Shape Change Due To Wear On The Accuracy Of Vortex-Shedding Flow Meters
Author: E. Von Lavante, U. Banaszak, m. G. Yilmaz, O. Ricken
Source: Flomeko 2007
Year Published: 2007
Abstract: In the present investigation, the problem of accurate determination of volumetric flows by means of the socalled vortex-shedding flowmeter in the case of shape changes from the original specifications due to wear was studied. To this end, the flow about the bluff body used in the presently studied vortex-shedding flow meter PROWTRL 72, as manufactured by the Flowtec AG, was investigated experimentally and numerically using a solver of the unsteady, compressible Navier-Stokes equations in two dimensions. The computations were carried out for several Reynolds numbers using modified geometry in which rounded edges of different radii, representing wear, were introduced. The effects of turbulence were modeled by using the realizable k-e turbulence model. The resulting flow fields were analyzed using various methods, including visualization, evaluation of several of their global features and DFT of properly chosen variables. The experimental results, obtained for a model bluff body using an ultrasound barrier for determination of the vortex shedding frequency were validated by comparison of measurements carried out on a real flow meter.

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.