Hydraulic Structures & Flood Control: A Case Study of the Red River, Vietnam (Part 2)
Hanoi, Vietnam's second-largest city, lies in the Red River Delta, a region prone to heavy rainfall and flooding, with risks exacerbated by climate change
Modeling Ice Formation in EEMS: Part 2 – Introduction to the Heat-Coupled Ice Model and Demonstration Case
Our previous blog introduced the heat-coupled ice model implemented in EEMS. We also demonstrated its capabilities through a simulation of ice formation and melting in Lake Mendota
Hydraulic Structures & Flood Control: A Case Study of the Red River, Vietnam (Part 1)
Hanoi, Vietnam's second-largest city, lies in the Red River Delta, a region prone to heavy rainfall and flooding, with risks exacerbated by climate change
Modeling Ice Formation in EEMS: Part 1 – Introduction to the Heat-Coupled Ice Model and Demonstration Case
Accurately simulating seasonal ice cover is crucial for understanding the hydrodynamics, primary production, and water quality of lake systems.
Comparison of Different Turbulence Models on Sediment Transport in the Open Channel Test Case
Sediment transport in open channel flows is influenced by turbulence, which governs the distribution of momentum and sediment throughout the water column.
Movement of Lagrangian Particles across Hydraulic Structures
The Lagrangian Particle Tracking (LPT) module in EFDC+ was developed by DSI in 2009 and has served as an effective tool for solving numerous problems in fluid dynamics.
Equation-based Options in Hydraulic Structures
In our previous blog, we provided an overview of simulating hydraulic structures in EEMS, where we discussed the importance of rating tables and flow lookup tables in determining flow rates based on water surface elevations.
Flow Lookup Tables in EEMS
In a recent blog, we provided an overview of simulating hydraulic structures in EEMS. As a continuation, this blog details the rating table/flow lookup table to help users understand the nuanced dynamics of hydraulic structure simulations
Different Types of Open Boundaries and When to Use Them
Different Types of Open Boundaries and When to Use Them Understanding and effectively utilizing open boundaries is crucial for accurate modeling and simulation in environmental and coastal engineering.
Simulating Hydraulic Structures in EEMS
Simulating hydraulic structures in hydrological and hydraulic calculations is crucial for ensuring the accuracy, safety, and sustainability of water resource management and infrastructure development projects
Dye Volatilization Options in EEMS 12.1
When simulating chemical fate and transport, volatile chemicals at the air-water interface frequently off-gas from the water into the atmosphere.
New Vertical Layering Options in EEMS 12.1
A new vertical layering option following the Sigma-Zed (SGZ) approach has recently been added to EEMS. The new SGZ scheme offers significant flexibility in configuring the vertical layering system
Temperature Options Updates in EEMS12.1
Several significant enhancements have been made to the temperature module settings in EEMS 12.1. These changes to the user interface reflect new modules in EFDC+ and facilitate a more efficient workflow
Configuring Vertical Profiles
Following the implementation of COARE 3.6 in the EFDC+ code, a new option for calculating water surface heat exchange has been added.
Performance of COARE 3.6 for Surface Heat Exchange in EFDC+
Following the implementation of COARE 3.6 in the EFDC+ code, a new option for calculating water surface heat exchange has been added.
Updating Models to New Coordinate Reference settings in EEMS12.0
In the previous blog, we were introduced to the newly incorporated geographic coordinate system in EEMS12.0
Calculating Flux in EEMS and Comparing against Measured Flow
EEMS has a feature that allows users to extract flow flux through a flux line (a cross-section) and compare the extracted flow to the measured flow.
Navigation Lock Feature in EEMS
A lock is a hydraulic structure employed to facilitate the movement of boats, ships, and similar watercraft between different water levels on rivers and canals.
Incorporation of COARE 3.6 into EFDC+
The Coupled Ocean-Atmosphere Response Experiment (COARE) bulk algorithm, developed by C. Fairall, E. F. Bradley, and D. Rogers
What is GOTM and why is it important?
Starting from EEMS version 12, users have the flexibility to construct models using turbulence closures sourced from GOTM
Using Polygons to Specify Spatially Varying Parameters
Modelers often find it necessary to edit and adjust a wide range of parameters displayed in the 2DH view of EFDC+Explorer (EE).
3 Quick Ways to Load Project Files into EE
Speeding up the process of loading models into EE can help optimize your workflow while saving considerable processing time.
Implementation of Macrophyte Effects on Hydrodynamics in EFDC+
Submerged macrophytes are part of an essential relationship between the physical habitat and the biological community.
Modeling of Cyanobacteria Vertical Migration
Cyanobacteria, also known as blue-green algae, are diverse photosynthetic bacteria that play a crucial role in Earth's ecosystems.
Navigating Vertical Layering in EFDC+: A Comprehensive Guide
EFDC+ is a versatile hydrodynamic model capable of operating in 1-, 2-, or 3-dimensional (3D) modes. For 3D simulations, EFDC+ allows users to choose from two vertical layering schemes
Spatial Reference Systems in EEMS 12.0
Spatial reference systems play a crucial role in data processing and visualization, as well as in interpreting the model output in EEMS.
EFDC+/GOTM Scenarios: Free Convection
This blog discusses the results of a free convection test case performed with different turbulence closures available in EEMS 12.
EFDC+/GOTM Scenarios: Open Channel Flow
The choice of turbulence closure scheme has important consequences on model results through mixing and circulation (Burchard et al., 1998)
Anti-Reflection Open Boundary Condition
Boundary conditions are one of the key aspects of hydrodynamic models and require special attention.
Using Multiple Wind Series in EEMS
Wind is an essential factor in hydrodynamic model settings. EEMS has a feature that allows users to add multiple wind series to the model.