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Typical Model Studies

Typical Model Studies

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.

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Design Example: Creating a Hydraulic Model of a Dam Spillway

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Related Experiment Video

Updated: Dec 8, 2025

Sampling and Identification of Microplastics in Groundwater

Sampling and Identification of Microplastics in Groundwater

Published on: November 7, 2025

Research on drinking-groundwater source safety management based on numerical simulation.

Kai Song¹, Xu Ren², Adam Khalifa Mohamed²

¹Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, No. 111, North Section 1, 2nd Ring Road, Chengdu, 610031, China. songkailw@163.com.

Scientific Reports

|September 24, 2020

Summary

This summary is machine-generated.

Implementing advanced groundwater modeling, this study developed a protection system for drinking water sources. Remediation strategies effectively reduced chemical-oxygen-demand and ammonia-nitrogen, ensuring long-term water safety.

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Published on: August 19, 2018

Area of Science:

Hydrogeology
Environmental Engineering
Water Resource Management

Background:

Groundwater is the primary water source for the Fujiang River's first terrace, with significant exploitation volumes from two wells.
Elevated chemical-oxygen-demand (CODmn) and ammonia-nitrogen (NH3-N) levels were identified as key water quality indicators, correlating with other factors.
Industrial pollution sources were identified as the primary cause of water quality degradation.

Purpose of the Study:

To construct and apply a groundwater model for the safe management of drinking water sources.
To assess the effectiveness of remediation measures in protecting groundwater quality.
To predict long-term water quality trends under different management scenarios.

Main Methods:

A three-dimensional finite-difference groundwater model was developed for flow and solute transport.
Model calibration utilized data from 22 hydraulic head observation wells and 22 water quality indicators (CODmn, NH3-N).
Two scenarios were simulated: current conditions and implementation of remediation measures (sewage treatment, anti-seepage).

Main Results:

Groundwater exploitation created a 12m deep drawdown funnel and extended the particle-capture zone by 1100m.
Under current conditions, ammonia-nitrogen was predicted to exceed drinking water standards within 16 years.
Remediation measures predicted peak NH3-N and CODmn concentrations of 0.26 mg/L and 1.33 mg/L within 3 years, respectively.

Conclusions:

The developed groundwater model provides a theoretical basis for drinking water source protection.
Remediation strategies, including sewage treatment and anti-seepage measures, are effective in mitigating pollution.
Proactive management and technological systems are crucial for ensuring the long-term safety of drinking groundwater resources.