Numerical Simulation and Experiment on Averaging Pitot Tube with Flow Conditioning Wing |
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| Li-jun Sun, Li-xiao Qi, Tao Zhang |
- Abstract:
- Cross-section of Averaging Pitot Tube (APT) flow sensor is a determinant factor in meter performance. In order to improve the performance of the APT flowmeter, three different cross-sections with Flow Conditioning Wing (FCW) were put forward. It was shown by Computational Fluid Dynamics (CFD) numerical simulation and prototype test that the performance of the FCW II cross-section, such as the linearity, the repeatability, and the value of differential pressure generated, is better than those of traditional circle and diamond cross sections. It was shown by prototype test, in the case of the APT flowmeter with different length upstream straight pipe were fitted downstream a 90° bend, that, under the condition of non-fully developped turbulent flow velocity profile, the linearity and the value of differential pressure of the FCW II cross-section are better than those of the circle and the diamond cross sections, but there is not apparent difference at the repeatability.
- Keywords:
- Averaging Pitot Tube (APT) flowmeter, Cross-section, Flow Conditioning Wing (FCW)
- Download:
- IMEKO-TC9-2010-091.pdf
- DOI:
- -