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

Weir: Problem Solving01:26

Weir: Problem Solving

797
Water flow in open channels is often measured using hydraulic structures such as weirs, which allow precise calculation of discharge. In a rectangular channel, flow rates are measured using three types of weirs: rectangular sharp-crested, triangular sharp-crested, and broad-crested. The weir head is set at a fixed height above the channel bottom, simplifying calculations and enabling the relationship between depth and flow rate to be analyzed.For the rectangular sharp-crested weir, the flow...
797
Conservation of Mass in Moving, Nondeforming Control Volume01:14

Conservation of Mass in Moving, Nondeforming Control Volume

1.4K
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...
1.4K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

384
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...
384
Design Example: Design of an Irrigation Channel01:27

Design Example: Design of an Irrigation Channel

1.2K
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...
1.2K
Bioreactor Design and Operational System01:29

Bioreactor Design and Operational System

139
Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
139
Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

Design Example: Creating a Hydraulic Model of a Dam Spillway

927
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.
927

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[A preliminary report of laparoscopic extraperitoneal colostomy anterior to posterior sheath of rectus abdominis-transversus abdominis to prevent parastomal hernia].

Zhonghua wai ke za zhi [Chinese journal of surgery]·2023
Same author

Observation of Three Charmoniumlike States with J^{PC}=1^{--} in e^{+}e^{-}→D^{*0}D^{*-}π^{+}.

Physical review letters·2023
Same author

[A scoring system to predict molecular responses in patients with chronic myeloid leukemia in the chronic phase receiving initial imatinib therapy].

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2023
Same author

[Prevalence of colorectal cancer in 2020: a comparative analysis between China and the world].

Zhonghua zhong liu za zhi [Chinese journal of oncology]·2023
Same author

[Correlation between polycyclic aromatic hydrocarbons component phenanthrene and clinical indicators in patients on peritoneal dialysis].

Zhonghua yi xue za zhi·2023
Same author

[Establishment and data quality control of a multicenter prospective database for prevalence of abdominal complications after gastroenterological surgery].

Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery·2023

Related Experiment Video

Updated: Apr 11, 2026

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
08:49

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff

Published on: May 15, 2017

11.5K

Statistical evaluation of bioretention system for hydrologic performance.

Z Y Li1, K M Lam1

  • 1Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|June 4, 2015
PubMed
Summary

This study presents a numerical method to estimate stormwater retention in bioretention systems. The approach uses the Storm Water Management Model (SWMM) to predict long-term performance based on key parameters and Hong Kong rainfall data.

More Related Videos

Design and Construction of an Urban Runoff Research Facility
13:48

Design and Construction of an Urban Runoff Research Facility

Published on: August 8, 2014

13.7K
Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater
05:40

Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater

Published on: March 6, 2017

9.6K

Related Experiment Videos

Last Updated: Apr 11, 2026

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
08:49

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff

Published on: May 15, 2017

11.5K
Design and Construction of an Urban Runoff Research Facility
13:48

Design and Construction of an Urban Runoff Research Facility

Published on: August 8, 2014

13.7K
Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater
05:40

Comparison of Scale in a Photosynthetic Reactor System for Algal Remediation of Wastewater

Published on: March 6, 2017

9.6K

Area of Science:

  • Environmental Engineering
  • Hydrology
  • Urban Water Management

Background:

  • Low-impact development (LID) practices like bioretention are crucial for managing stormwater runoff.
  • Assessing the long-term retention performance of bioretention systems is essential for their effective implementation.
  • Existing methods may not fully capture the complex interplay of factors influencing bioretention performance.

Purpose of the Study:

  • To introduce a numerical approach for estimating the annual retention ratio of stormwater by bioretention systems.
  • To evaluate the impact of watershed area ratio and soil hydraulic conductivity on retention performance.
  • To validate the numerical model using data from a pilot-scale bioretention system.

Main Methods:

  • Utilized the Storm Water Management Model (SWMM) for hydrologic simulations.
  • Varied key parameters: watershed area ratio and hydraulic conductivity of soil media.
  • Employed a 10-year (2004-2013) high-resolution rainfall dataset from Hong Kong for calculations.

Main Results:

  • Developed a method to calculate annual retention ratios for bioretention systems.
  • Quantified the influence of watershed area ratio and hydraulic conductivity on stormwater retention.
  • Validated the numerical simulation results against monitored flow data from a physical model.

Conclusions:

  • The proposed numerical approach provides a reliable method for estimating long-term bioretention performance in Hong Kong's climate.
  • The study highlights the significance of watershed area ratio and hydraulic conductivity in optimizing bioretention design.
  • The findings can aid in the planning and implementation of effective stormwater management strategies using bioretention.