Details of Grant 

EPSRC Reference:	GR/R34752/01
Title:	Acoustic monitoring of sewer boundary conditions.
Principal Investigator:	Horoshenkov, Professor KV
Other Investigators:	Ashley, Professor RM Ashley, Professor R
Researcher Co-Investigators:
Project Partners:	Amtec Surveying Ltd Millieutech Environmental Management Ltd North of Scotland Water
Department:	Civil & Environmental Engineering
Organisation:	University of Bradford
Scheme:	Standard Research (Pre-FEC)
Starts:	06 November 2001	Ends:	05 November 2004	Value (£):	198,762
EPSRC Research Topic Classifications:	Water Engineering
EPSRC Industrial Sector Classifications:	Construction Environment Water
Related Grants:
Panel History:
Summary on Grant Application Form
The water industry uses mathematical models of sewerage systems to model hydraulic performance. These models are essential tools in the design process for rehabilitating existing ageing systems and assessing the propensity for flooding and discharges to watercourses. Bed sediments, pipe obstructions, lateral connections and general pipe roughness can considerably affect the theoretical predictions of flow. Although many mathematical models can simulate these effects, accurate flow predictions still require field data about the condition of real sewers. Existing methods of remote mechanism CCTV survey are often unreliable or incomplete because of impassable obstructions in pipes and flooding of the equipment where flows ai too deep.There has been a considerable amount of work related to sound propagation in ducts, channels and waveguides. These studies provide a good theoretical basis for the development of instrumentation which can use the acoustic response of a duct for the global remote characterisation of the physical and geometrical properties defining flow resistance. Instruments have already been developed to determine larger variations of the crosssection of and the acoustic impedance in ducts using the method of acoustic reflectometry. These methods will be extended, tested and used for the development of novel instrumentation for remote, speedy and cost-effective acoustic characterisation of boundary conditions in sewerage systems.
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Organisation Website:	http://www.brad.ac.uk