Modeling Tropical Cyclones in EEMS
A tropical cyclone is a system of rapidly rotating wind around a low-pressure center that produces extreme winds, gusts, and heavy rainfall.
features studies
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.
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
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.
New EEMS Feature Timely For Hurricane Season- 4 Weeks Until Release
EEMS10 now has the ability to simulate spatially and temporally varying fields, such as a wind or barometric pressure fields.
Partial Depth Flow Blocking - Part 1
DSI has added a new capability to EFDC+ 10.1. This new capability allows the model to simulate partially blocked depths due to floating objects
Partial Depth Flow Blocking - Part 2
Lake Washington is a very deep lake that made conventional bridge construction difficult. To allow a traffic to cross the lake, a floating bridge was constructed.
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.
Propeller Wash Simulation Using Historical Ship Track Data
Simulation of the impacts of propeller wash in hydrodynamic and sediment transport models requires detailed information on ship travel routes and the physical characteristics of each ship.
Propwash Mixing of a Hypersaline Bottom Layer
A 3D EFDC+ simulation showing how propeller wash from passing ships breaks up a 100 ppt hypersaline bottom layer in a navigation canal.
Shellfish Farm Module in EEMS10.2
The new shellfish sub-model in EEMS10.2 was used to replicate the Kobayashi et al., (1997) test case
Simulating Biota in EFDC+
In our earlier water quality blogs, we provided a preview of new features in the upcoming version of EEMS which will include unlimited phytoplankton and zooplankton classes
Fish Passage Through Navigational Locks with EEMS
Learn how EFDC+ modeling helps understand salmon migration challenges through the Ballard Locks by simulating complex temperature and salinity dynamics in Lake Washington Ship Canal.
Simulating Wind-Induced Waves in EEMS
High wind speeds associated with hurricanes are capable of producing extreme waves, and high winds, currents, and tides can combine to create storm surge.
Testing Procedures for the EFDC+ Propeller Wash Module with Sediment Transport
DSI is continually developing new features for EFDC+ and EFDC+ Explorer Modeling System (EEMS).