Journal article
Complementary experiments for hydraulic modeling of multi-box culverts
Canadian journal of civil engineering, Vol.40(4), pp.324-333
04/01/2013
DOI: 10.1139/cjce-2012-0201
Abstract
Culvert design must account for a large range of flow rates but most of the time culverts convey flows that are smaller than the design flow. Repeated high flows passing through the culverts lead to a gradual increase of the sediment deposits in the culvert vicinity, eventually resulting in reduced flow and sediment capacity. Sedimentation at culverts is quite an involved process due to the combined effect of flow non-uniformity and unsteadiness, as well as of the flow-sediment interaction. This paper reports results from a series of laboratory experiments aimed at understanding the hydro and morpho-dynamic changes occurring in the vicinity of a three-box culvert. For this purpose, velocity and turbulence characteristics upstream of the culvert were mapped globally and locally during the transition from an original flatbed to equilibrium sediment transport condition using contemporary acoustics, light detection and ranging, and image-based technologies. The experimental results reveal flow complexities not currently accounted for in the design of the multi-barrel culverts, but which can be detrimental for their long-term operation. Considerations on practical approaches to efficiently model the complexities were formulated.
Details
- Title: Subtitle
- Complementary experiments for hydraulic modeling of multi-box culverts
- Creators
- H-C. Ho - Zhejiang UniversityM. Muste - University of IowaS. Plenner - Univ Iowa, IIHR Hydrosci & Engn, C Maxwell Stanley Hydraul Lab 100, Iowa City, IA 52242 USAA. R. Firoozfar - Univ Iowa, IIHR Hydrosci & Engn, C Maxwell Stanley Hydraul Lab 100, Iowa City, IA 52242 USA
- Resource Type
- Journal article
- Publication Details
- Canadian journal of civil engineering, Vol.40(4), pp.324-333
- Publisher
- CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
- DOI
- 10.1139/cjce-2012-0201
- ISSN
- 0315-1468
- eISSN
- 1208-6029
- Number of pages
- 10
- Grant note
- TR 545 / Iowa Department of Transportation (IDOT)
- Language
- English
- Date published
- 04/01/2013
- Academic Unit
- IIHR--Hydroscience and Engineering; Geographical and Sustainability Sciences
- Record Identifier
- 9984459629002771
Metrics
3 Record Views