| Autor: |
Nijun Yao, Hao Qiu, Jianxin Xia, Sobota, Jerzy |
| Zdroj: |
Ochrona Srodowiska; 2018, Vol. 40 Issue 3, p47-52, 6p |
| Abstrakt: |
A formula for calculating the location of maximum solid particle volume concentration zone on the vertical axis of the transverse conduit profile was obtained from analysis of forces acting during the flow of liquid-sand particle mixture as well as by the parameter k introduction. The formula was determined on the basis of flow test results for the 5% coarse mixture (vol.) containing sand grains of 0.5 mm, 1.0 mm and 3.0 mm in diameter in a 50 × 50 mm square conduit, at three flow velocities: 1.5 m/s, 2.0 m/s and 2.5 m/s. The transverse concentration profiles were measured using the PIV (particle image velocity) method. Verification of the proposed formula, obtained from the results of the flow tests in the square conductors, showed that with sufficient accuracy it can be applied to the analysis of coarse mixture flows in the pipelines. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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