CHENJian-xun,GAOJin-liang,QIShi-hua,et al.Study on Mixing Law of Water Quality at Cross Junctions in Water Supply Network[J].China Water & Wastewater,2022,38(8):10-19.
Study on Mixing Law of Water Quality at Cross Junctions in Water Supply Network
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第8期
Page:
10-19
Column:
Date of publication:
2022-04-17
- Keywords:
- water quality; cross junction; double-T junction; junction mixing degree index; response surface method
- Abstract:
- The mixing law of water quality at the adjacent inflow cross junction and double-T junction is explored through device experiments and numerical simulation experiments. Firstly, the mixing degree index is derived based on the law of mass conservation. The accuracy of the numerical model of the two junction types is verified by comparing the device experiment results with those of numerical simulation, and the variation of mixing degree with Reynolds number is analyzed. On this basis, the response surface method was used to design the experiment, and the two types of junction mixing degree calculation models were obtained by regression, and the significance of the models was verified by variance analysis. The mixing effect of the two types of junction was compared and analyzed, and suggestions are provided for the design and expansion of the pipe network based on the response surface.
Last Update:
2022-04-17