| Full text | |
| Author(s): |
Martins, Jaqueline Costa
;
Seleghim, Jr., Paulo
Total Authors: 2
|
| Document type: | Journal article |
| Source: | JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME; v. 139, n. 1 JAN 2017. |
| Web of Science Citations: | 2 |
| Abstract | |
The propagation and attenuation of pressure waves in highly dispersed gas-liquid flows are investigated in this work, and an indirect measurement method is proposed to assess the attenuation coefficient in short pipelines. Additionally, a mechanistic acoustic energy dissipation model is derived from the oscillatory solutions of one-dimensional (1D) nondimensionalized mass and momentum equations to facilitate the interpretation of the results. Tests were performed on a 1500m long, 50mm internal diameter pipeline in which pressure disturbances were induced by suddenly opening leak valves. The results are consistent and in good agreement with the proposed attenuation model (+/- 10% for 10(3) < Re< 10(4)), therefore validating the proposed model and indirect measurement method. (AU) | |