Preissmann Four-Point Methods for Solution of Simplified Saint-Venant Equations Applied to Flood Routing in Prismatic Open Channels

This research goal to compare the flow properties in the rectangular and trapezoidal open channels by examining the influence of the channel side slope is depicted by simplified Saint Venant Equations. The solution of these equations has been completed numerically by using Preissmann four-point sche...

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Main Authors: Bambang Agus Sulistyono, Suryo Widodo
Format: Article
Language:English
Published: Research Center of Inorganic Materials and Coordination Complexes, Universitas Sriwijaya 2024-01-01
Series:Science and Technology Indonesia
Subjects:
Online Access:https://sciencetechindonesia.com/index.php/jsti/article/view/858/391
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author Bambang Agus Sulistyono
Suryo Widodo
author_facet Bambang Agus Sulistyono
Suryo Widodo
author_sort Bambang Agus Sulistyono
collection DOAJ
description This research goal to compare the flow properties in the rectangular and trapezoidal open channels by examining the influence of the channel side slope is depicted by simplified Saint Venant Equations. The solution of these equations has been completed numerically by using Preissmann four-point scheme. The model is simulated using the Matlab application to point out the flow properties. The proposed model is validated by the model without simplification which was selected from the literature. The validation outcomes indicate that in common, the simulation outcomes of the two models have a good agreement. The simulation results show that the greater the slope of the channel side, the greater the peak discharge and the greater the time shift. The analysis emphasizes how channel geometry influences flow behavior, indicating that trapezoidal channels, with inclined side slopes z, yield slightly higher peak discharges compared to rectangular ones. For z = 0, discharge of peak Q = 7.38 m3/s and t = 18 s. For z = 2, discharge of peak Q = 7.39 m3/s and t = 21 s. For z = 4, discharge of peak Q = 7.45 m3/s and t = 23 s. For z = 6, discharge of peak Q = 7.51 m3/s and t = 24 s.
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spelling doaj.art-1f0ef79299e34d4a9bf08320d1a725242024-01-23T05:09:13ZengResearch Center of Inorganic Materials and Coordination Complexes, Universitas SriwijayaScience and Technology Indonesia2580-44052580-43912024-01-019118318810.26554/sti.2024.9.1.183-188Preissmann Four-Point Methods for Solution of Simplified Saint-Venant Equations Applied to Flood Routing in Prismatic Open ChannelsBambang Agus Sulistyono0Suryo Widodo1Department of Mathematics Education, Faculty of Health and Science, University of Nusantara PGRI Kediri, Kediri, 64112, IndonesiaDepartment of Mathematics Education, Faculty of Health and Science, University of Nusantara PGRI Kediri, Kediri, 64112, IndonesiaThis research goal to compare the flow properties in the rectangular and trapezoidal open channels by examining the influence of the channel side slope is depicted by simplified Saint Venant Equations. The solution of these equations has been completed numerically by using Preissmann four-point scheme. The model is simulated using the Matlab application to point out the flow properties. The proposed model is validated by the model without simplification which was selected from the literature. The validation outcomes indicate that in common, the simulation outcomes of the two models have a good agreement. The simulation results show that the greater the slope of the channel side, the greater the peak discharge and the greater the time shift. The analysis emphasizes how channel geometry influences flow behavior, indicating that trapezoidal channels, with inclined side slopes z, yield slightly higher peak discharges compared to rectangular ones. For z = 0, discharge of peak Q = 7.38 m3/s and t = 18 s. For z = 2, discharge of peak Q = 7.39 m3/s and t = 21 s. For z = 4, discharge of peak Q = 7.45 m3/s and t = 23 s. For z = 6, discharge of peak Q = 7.51 m3/s and t = 24 s.https://sciencetechindonesia.com/index.php/jsti/article/view/858/391prismatic channel flowsimplified saint-venant equationspreissmann four-point schemeflow properties
spellingShingle Bambang Agus Sulistyono
Suryo Widodo
Preissmann Four-Point Methods for Solution of Simplified Saint-Venant Equations Applied to Flood Routing in Prismatic Open Channels
Science and Technology Indonesia
prismatic channel flow
simplified saint-venant equations
preissmann four-point scheme
flow properties
title Preissmann Four-Point Methods for Solution of Simplified Saint-Venant Equations Applied to Flood Routing in Prismatic Open Channels
title_full Preissmann Four-Point Methods for Solution of Simplified Saint-Venant Equations Applied to Flood Routing in Prismatic Open Channels
title_fullStr Preissmann Four-Point Methods for Solution of Simplified Saint-Venant Equations Applied to Flood Routing in Prismatic Open Channels
title_full_unstemmed Preissmann Four-Point Methods for Solution of Simplified Saint-Venant Equations Applied to Flood Routing in Prismatic Open Channels
title_short Preissmann Four-Point Methods for Solution of Simplified Saint-Venant Equations Applied to Flood Routing in Prismatic Open Channels
title_sort preissmann four point methods for solution of simplified saint venant equations applied to flood routing in prismatic open channels
topic prismatic channel flow
simplified saint-venant equations
preissmann four-point scheme
flow properties
url https://sciencetechindonesia.com/index.php/jsti/article/view/858/391
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