Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

Design Example: Creating a Hydraulic Model of a Dam Spillway

159
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
159
Typical Model Studies01:30

Typical Model Studies

354
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
354
Design Example: Design of an Irrigation Channel01:27

Design Example: Design of an Irrigation Channel

91
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
91
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

43
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
43
Conservation of Mass in Moving, Nondeforming Control Volume01:14

Conservation of Mass in Moving, Nondeforming Control Volume

1.1K
Stormwater detention basins are essential in managing runoff during heavy rainfall, particularly in urban areas where impervious surfaces increase the risk of flooding. Understanding the conservation of mass in these systems allows engineers to optimize basin performance, balancing inflow, outflow, and water storage.
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
1.1K
Modeling and Similitude01:12

Modeling and Similitude

262
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
262
  1. Home
  3. Research Domains
  5. Engineering
  7. Environmental Engineering
  9. Air Pollution Modelling And Control
  11. Application Of A Simplified Green-ampt Model To The Maga Earthfill Dam Under Rainfall Conditions: A Sensitivity Analysis Case Of An Infiltration Model.
  1. Home
  3. Research Domains
  5. Engineering
  7. Environmental Engineering
  9. Air Pollution Modelling And Control
  11. Application Of A Simplified Green-ampt Model To The Maga Earthfill Dam Under Rainfall Conditions: A Sensitivity Analysis Case Of An Infiltration Model.

Related Experiment Video

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff
10:35

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff

Published on: April 3, 2014

20.8K

Application of a simplified Green-Ampt model to the Maga earthfill dam under rainfall conditions: A sensitivity analysis case of an infiltration model.

Olivier Wounabaïsa1, Luc Leroy Mambou Ngueyep1, Venceslas Setchokbé Hinfene2

  • 1Department of Mining Engineering, School of Geology and Mining Engineering, University of Ngaoundere, P.O. Box. 115, Meiganga, Cameroon.

Heliyon
|May 20, 2024

View abstract on PubMed

Summary
This summary is machine-generated.
Keywords:
Excel VBA codeFar-North CameroonHydrodynamics parametersNumerical simulation

More Related Videos

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
09:44

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

Published on: October 16, 2018

10.2K
Author Spotlight: Advancing Agricultural Land Ecosystem Research with a Hydraulic Property Analyzer to Assess Soil Health
07:21

Author Spotlight: Advancing Agricultural Land Ecosystem Research with a Hydraulic Property Analyzer to Assess Soil Health

Published on: August 9, 2024

971

Related Experiment Videos

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff
10:35

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff

Published on: April 3, 2014

20.8K
Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
09:44

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

Published on: October 16, 2018

10.2K
Author Spotlight: Advancing Agricultural Land Ecosystem Research with a Hydraulic Property Analyzer to Assess Soil Health
07:21

Author Spotlight: Advancing Agricultural Land Ecosystem Research with a Hydraulic Property Analyzer to Assess Soil Health

Published on: August 9, 2024

971

This study uses a simplified Green-Ampt (GA) model to simulate seepage in an earth dam, identifying key factors like soil texture and rain intensity influencing water infiltration. The model shows acceptable accuracy for predicting seepage in specific soil types.

Area of Science:

  • Geotechnical Engineering
  • Hydrology
  • Environmental Science

Background:

  • Seepage in earth dams poses significant risks, especially in regions prone to flooding.
  • Accurate modeling of infiltration is crucial for dam safety and water resource management.
  • Climate change exacerbates the need for reliable subsurface flow prediction tools.

Purpose of the Study:

  • To apply and validate a simplified Green-Ampt (GA) infiltration model for numerical simulation of seepage in the Maga earth dam.
  • To investigate the influence of soil texture, permeability, rain intensity, and initial moisture on infiltration dynamics.
  • To assess the accuracy and identify key parameters for predicting seepage in ferruginous and degraded vertic soils.

Main Methods:

  • Numerical modeling of seepage using a simplified Green-Ampt (GA) infiltration model.
Optimization procedure
Sensitivity analysis
Simplified green-ampt model
  • Parametrization of infiltration parameters for diverse soil textures within the dam and its surroundings.
  • Development and application of an Excel VBA code for numerical simulations.
  • Implementation of an optimization procedure to enhance GA model accuracy and parameter prediction.
  • Sensitivity analysis of infiltration model parameters.

    • Main Results:

    • Initial and saturated water content, rain intensity, and saturated permeability were identified as the most influential parameters.
    • Main effects and interactions of these parameters explained 68.8% to 90.03% of the total variance.
    • Numerical simulations showed underestimation for 60% and 56.25% of hydrodynamic parameters in specific rain sequences.
    • Acceptable accuracy (Relative Error between -23.90% and 12.75%) was achieved for 53.13% of predicted parameters.
    • The simplified GA model demonstrated acceptable accuracy for predicting seepage in ferruginous and degraded vertic soils.

    Conclusions:

    • The simplified Green-Ampt model provides a valuable tool for understanding and predicting seepage in earth dams under rainfall conditions.
    • Numerical simulations, despite some underestimations, offer crucial insights into subsurface water movement in vulnerable areas.
    • This research contributes to enhancing flood risk management strategies in regions affected by climate change through improved hydrological modeling.