Improved rehabilitation design for the long-term hydraulic function of marine outfalls with soffit connected risers is the main aim of the research programme reported here. As a step towards this goal a better understanding of the processes of saline intrusion and saltwater purging has been developed from detailed laboratory studies. Unsteady flow cycles have been investigated and observed riser purging sequences have been compared against theoretical criteria. From the monitoring of riser flow salinity, quantitative measures of the salt wedge front entrainment process have been obtained together with indicative figures for salt wedge expulsion rate. This interim outcome is intended to alert the designer and operator of outfalls of the potential problems with soffit connected riser systems.
Skip Nav Destination
Article navigation
Research Article|
November 01 1998
Experimental observations of salt purging in a model sea outfall diffuser with eight soffit connected risers Available to Purchase
R. Burrows;
R. Burrows
*Department of Civil Engineering, University of Liverpool, L69 3BX, UK
Search for other works by this author on:
K. H. M. Ali;
K. H. M. Ali
*Department of Civil Engineering, University of Liverpool, L69 3BX, UK
Search for other works by this author on:
K. Spence;
K. Spence
**Department of Civil & Structural Engineering, University of Sheffield, UK
Search for other works by this author on:
T. T. Chiang
T. T. Chiang
***Ministry of Agriculture Malaysia, Ampang Jajar, 05990 Alor Setar, Kedah Darul Aman, Malaysia
Search for other works by this author on:
Water Sci Technol (1998) 38 (10): 269–275.
Citation
R. Burrows, K. H. M. Ali, K. Spence, T. T. Chiang; Experimental observations of salt purging in a model sea outfall diffuser with eight soffit connected risers. Water Sci Technol 1 November 1998; 38 (10): 269–275. doi: https://doi.org/10.2166/wst.1998.0411
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
eBook
Pay-Per-View Access
$38.00