Investigation of the Behavior 2D of Trapped Air in the Water Conveyance Systems During Rapid Filling or Emptying Process

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

DANESHFARAZ R.; DASTGIRI S.; ALINEJAD B.; BESHARAT M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: WATER AND WASTEWATER Year:2020 | Volume:31 | Issue:4 Page(s): 156-171

Download Full-Text

Persian Verion

View:

284

Download:

Cites:

Information Journal Paper

Title

Investigation of the Behavior 2D of Trapped Air in the Water Conveyance Systems During Rapid Filling or Emptying Process

Author(s)

DANESHFARAZ R. | DASTGIRI S. | ALINEJAD B. | BESHARAT M. | Issue Writer Certificate

Keywords

Trapped AirQ1

Two Phase FlowQ2

Sudden DischargeQ1

Abbas Abad Dam Transmission LineQ1

Abstract

The Trapped Air in the water conveyance systems may cause the obstruction of flow, corrosion and adverse effect on the performance of valves and pumps. This study is part of the Abbas Abad Dam Drinking Water Transmission Line using Ansys Fluent Software, The behavior of air entrapped during the filling and discharging process and the effect of its existence on pressure changes were studied. EnTrapped Air was simulated at 0. 5, 2, 3 m lengths and inlet pressures of 1. 2456, 1. 7456 and 2. 2456 atmospheres for a 35-meter-long metal pipe with a discharge valve embedded in its outlet end. The effects of pressure-time changes were investigated in two ways: a) pressure changes in the pipe and drain valve and b) pressure changes inside the enTrapped Air. The results showed that the pressure changes in both cases were due to the large fluctuations in confined air and that the fluctuations continued until the drain valve was fully opened and the longer the confined air length was, the greater the amplitude and length of the created fluctuations. Modeling with similar boundary conditions without the presence of air indicates no pressure fluctuations. The results of the verification confirm the research results. Besides the Palau et al, 2019 results, calculation of relative error, RMSE and NRMSE were used in order to validate the numerical model results.

Cites

No record.

References

No record.

Cite

APA: Copy

DANESHFARAZ, R., DASTGIRI, S., ALINEJAD, B., & BESHARAT, M.. (2020). Investigation of the Behavior 2D of Trapped Air in the Water Conveyance Systems During Rapid Filling or Emptying Process. WATER AND WASTEWATER, 31(4 ), 156-171. SID. https://sid.ir/paper/371239/en

Vancouver: Copy

DANESHFARAZ R., DASTGIRI S., ALINEJAD B., BESHARAT M.. Investigation of the Behavior 2D of Trapped Air in the Water Conveyance Systems During Rapid Filling or Emptying Process. WATER AND WASTEWATER[Internet]. 2020;31(4 ):156-171. Available from: https://sid.ir/paper/371239/en

IEEE: Copy

R. DANESHFARAZ, S. DASTGIRI, B. ALINEJAD, and M. BESHARAT, “Investigation of the Behavior 2D of Trapped Air in the Water Conveyance Systems During Rapid Filling or Emptying Process,” WATER AND WASTEWATER, vol. 31, no. 4 , pp. 156–171, 2020, [Online]. Available: https://sid.ir/paper/371239/en

Related Journal Papers