Teaching Hydraulic Design Using Equation Solvers

Jewell, Thomas K.

doi:10.1061/(asce)0733-9429(2001)127:12(1013)

Cited by 15 publications

(6 citation statements)

References 1 publication

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“…Computer technology plays a significant role in engineering education. Determining how and at what level to introduce technology within the curricula is a significant challenge to educators (Jewell 2001). Better students can develop some advance solutions using other software tools (Lopes 2004).…”

Section: Resultsmentioning

confidence: 99%

Spreadsheet-Based Pipe Networks Analysis for Teaching and Learning Purpose

Brkić¹

2017

Preprint

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An example of hydraulic design project for teaching purpose is presented. Students’ task is to develop a looped distribution network for water (i.e. to determinate node consumptions, disposal of pipes, and finally to calculate flow rates in the network’s pipes and their optimal diameters). This can be accomplished by using the original Hardy Cross method, the improved Hardy Cross method, the node-loop method, etc. For the improved Hardy Cross method and the node-loop method, use of matrix calculation is mandatory. Because the analysis of water distribution networks is an essential component of civil engineering water resources curricula, the adequate technique better than the hand-oriented one is desired in order to increase students’ understanding of this kind of engineering systems and of relevant design issues in more concise and effective way. The described use of spreadsheet solvers is more than suitable for the purpose, especially knowing that spreadsheet solvers are much more matrix friendly compared with the hand-orientated calculation. Although matrix calculation is not mandatory for the original Hardy Cross method, even in that case it is preferred for better understanding of the problem. The application of commonly available spreadsheet software (Microsoft Excel) including two real classroom tasks is presented. ; JRC.C.3-Energy Security, Distribution and Markets

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Section: Resultsmentioning

confidence: 99%

Spreadsheet-Based Pipe Networks Analysis for Teaching and Learning Purpose

Brkić¹

2017

Preprint

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“…Low and Tang (2001) used excel solver to assess the reliability of embankments on soft ground. Simplicity and ease to handle solver lured Jewell (2001) to demonstrate the utility of equation solvers in hydraulic design. Bhattacharjya (2010) utilised excel solver to determine critical depths in conduits.…”

Section: Grg Techniquementioning

confidence: 99%

Developing Stage-Discharge Relations using Optimization Techniques

Zakwan

Muzzammil

Alam

2017

Aquademia: Water, Environment and Technology

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Accurate estimation of discharge in rivers forms the basis of efficient flood management and surface water planning. However, continuous measurement of discharge in a stream is impractical, therefore, discharge in natural streams is generally estimated using the stage-discharge relationship. The reliability of discharge predicted from rating curve depends on the accuracy of the method used in developing stage-discharge relationship. Generalized Reduced Gradient (GRG) solver has been reported as a powerful optimization tool for handling nonlinear optimization problems, therefore, present work is an implementation of Generalized Reduced Gradient technique to determine rating curve parameters. Spreadsheet based nonlinear optimization has been applied to model the rating curve for two gauging sites viz. Walton site on Choctawhatchee river and Philadelphia site on Schuylkill river, USA. The stage-discharge relationships for the two sites were also developed by using Genetic Algorithm (GA) and classical rating curve approach rating curve. Comparison of results shows that rating curve equations developed by using GRG technique are as effective as those developed by GA and more accurate than classical rating curve approach. The goodness of fit criteria for both the sites shows that the rating curves obtained by using GRG technique fit the observed data better than classical rating curve approach.

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“…The published articles contain excellent material that can both aid and inspire instructors. One of the included papers specifically discusses the future of civil engineering education for hydraulic engineers (Liggett and Ettema, 2001); others focus on examples of design projects for use in the classroom (Tullis and Tullis, 2001;Finnie, 2001;Jewell, 2001), a few present local teaching with examples from Australia, England, and the United States (Hotchkiss et al, 2001;Novak and Valentine, 2001;Heyder, 2001;Chanson, 2001), and one reviews documents from various sources for use in teaching hydraulic design (ASCE Task Committee, 2001). All this work appreciably contributes to the subject and sheds light on difficult and, often at least partly, intractable issues.…”

Section: Introductionmentioning

confidence: 99%