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Sep 20, 2018

Compose a 1500 words essay on Fluids and Drainage Engineering. Needs to be plagiarism free!Download file to see previous pages... The most common use of engineering hydrology is the prediction of desi

Compose a 1500 words essay on Fluids and Drainage Engineering. Needs to be plagiarism free!

Download file to see previous pages...

The most common use of engineering hydrology is the prediction of design events. This may be considered analogous to the estimation of design loads on structures. Design events do not mimic nature, but are merely a convenient way of designing safe and economical structures for water resources schemes. Civil engineers are principally concerned with the extremes of nature, design events may be either floods or droughts. The design of hydraulic structures will normally require the estimation of a suitable design flood and sometimes a design drought (Bedient and Huber, 1992). A large range of factors control the shape of hydrographs. These include: precipitation type and intensity, catchment shape, catchment gradient, land use and vegetation, soil type, geology etc. A hydrograph is the time-series record of water level, water flow or other hydraulic properties, and can be used to gain insights into the relationships between rivers and aquifers. Typically, a stream hydrograph shows the fluctuations in stream flow through time and is a commonly available dataset routinely measured to support the management of water resources. For a gaining stream, where groundwater is contributing to stream flow, analysis of the stream hydrograph can indicate the magnitude and timing of this contribution (Patra, 2001). Hydrographs are analyzed to find out discharge patterns of a particular drainage basin, Help predict flooding events, therefore influence implementation of flood prevention measures. Storm Hydrographs show the change in discharge caused by a period of rainfall. See Table 1 for the rainfall and river elevation data of River Thaw.

Table 1. Rainfall and river elevation data of River Thaw

Date

Time

Rainfall (mm)

Date

Time

River Level (m)

26.07.2007