We noticed that you're not using the latest version of your browser. You'll still be able to use our site, but it might not work or look the way it's supposed to. We recommend upgrading your browser.
JOURNAL OF WATER MANAGEMENT MODELING JWMM
AUTHORS
REVIEWERS
ABOUT
RESOURCES
Menu SEARCH LOGIN
Software
Tap in to water management modeling that excels. PCSWMM is flexible, easy to use and streamlines your workflow – saving you time and resources.
Training
Beginner or seasoned user, our flexible training options help you understand and master the full capabilities of both EPA SWMM5 and PCSWMM.
Community
There's a whole community to support you - find solutions, view code and more.
OPEN SWMM
OPEN EPANET
Journal
Our peer-reviewed, open-access Journal of Water Management Modeling. Expand your knowledge, get insights and discover new approaches that let you work more effectively.
Conference
The International Conference on Water Management Modeling. Meet your colleagues, share your experiences and be on the forefront of advances in our profession.
Consulting
Not sure how to solve a complex water management issue? Put our experience, knowledge, and innovation to work for you.
  • AUTHORS
  • REVIEWERS
  • ABOUT
  • SEARCH
  • RESOURCES
    Software
    Training
    Community
    OPEN SWMM
    OPEN EPANET
    Journal
    Conference
    Consulting

JWMM Login

Verifying credentials  Don't have an account?
Forgot your password?

Pressure Surges Following Sudden Air Pocket Entrapment in Stormwater Systems

Jose Vasconcelos and Gabriel M. Leite (2012)
Auburn University
https://doi.org/10.14796/JWMM.R245-04
Comments

Collapse all
Collapse all

Abstract

Stormwater storage tunnels may undergo rapid pipe filling conditions during extreme rain events. Such conditions are relevant as adverse conditions may develop, such as surging due to entrapment and compression of entrapped air pockets. Operational issues such as structural damage, geysering and the return of conveyed water to grade, among others, have been linked to air pocket entrapment.

This chapter presents results from the experimental investigations of pressure surges caused by sudden air pocket entrapment. Steady flow was supplied in a pipeline in such a way that pressurized flows existed at the upstream end while the downstream end experienced free surface flow due to free discharge conditions at the downstream end. A combination of flow rates and slopes resulted in several gradually varied flow profiles at the discharge, with various volumes of atmospheric air at the discharge end.

By suddenly closing the downstream discharge valve, an air pocket was entrapped and surges were recorded. To emulate conditions in which surge relief is provided during air pocket compression, valve operation also included cases with partial valve obstruction. Among the obtained results, one can notice significantly different surges for cases with and without pressure relief (e.g. with total or partial obstruction), and that the larger the obstruction degree the larger are the surges. Such findings are useful in the development of numerical models to simulate the rapid filling of stormwater tunnels incorporating these findings.

This paper is only available in PDF Format:

  View full text PDF

Image


Expand all

PAPER INFO

Identification

CHI ref #: R245-04 716
Volume: 20
Cite as: CHI JWMM 2012;R245-04
https://doi.org/10.14796/JWMM.R245-04

Publication History

Received: N/A
Accepted: N/A
Published: February 15, 2012

Status

# reviewers: 2
Version: Final published

Copyright

© 2012 CHI. Some rights reserved.

The Journal of Water Management Modeling is an open-access (OA) publication. Open access means that articles and papers are available without barriers to all who could benefit from them. Practically speaking, all published works will be available to a worldwide audience, free, immediately on publication. As such, JWMM can be considered a Diamond, Gratis OA journal.

Paper and publication copyrights are summarized here. JWMM content can be downloaded, printed, copied, distributed, and linked-to when providing full attribution to both the author/s and JWMM.


AUTHORS

Jose Vasconcelos

Auburn University, Auburn, AL, USA

Gabriel M. Leite

Auburn University, Auburn, AL, USA

ADDITIONAL DATA

 

COMMENTS

Be the first to comment.

RELATED PAPERS

 


TAGS

 

Connect With Us

Journal of Water Management Modeling
ISSN: 2292-6062

  info@chijournal.org

147 Wyndham St. N., Ste. 202
Guelph, Ontario, Canada, N1H 4E9
About JWMM

Mission and intent

Editorial board

Review process

Disclaimer

Privacy policy

For Authors

Submit paper

Author checklist

Journal paper template

Reference guide

Transfer of copyright

Unit conversion table

For Reviewers

Reviewing guidelines

Criteria to be used

Standards of acceptance


Copyright 2022 by CHI