In this post, we would like to demonstrate how the propeller transfers the energy to the water column causing sediment resuspension.
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.
Many urban waterfronts are contaminated with metals, petroleum hydrocarbons, and other organic chemicals. The contamination could be as much as 20 feet…
Climate change is an accepted reality, so most infrastructure development and maintenance will require the evaluation of possible impacts of climate change.
Sediment resuspension occurs in harbors across the world as a function of propeller-induced water velocities, and resulting shear stress, at the sediment-water interface. While such events occur with great frequency and are generally not remarkable, the potential effects of propwash on the erosion, transport, and re-deposition of contaminated sediments can be significant.
The warm waters and shallow, vegetated waterways of the Gulf of Mexico provide valuable habitat to a diverse range of plants and animals….
The US EPA describes nutrient pollution as “one of America’s most widespread, costly and challenging environmental problems.” This issue is of significant concern world-wide, with considerable resources now being committed in Asia and Europe to study eutrophication in streams, rivers, lakes, bays and coastal waters and related economic, environmental and human health issues.
The need for detailed plans describing the restoration of impaired waters is widely recognized in developed countries. TMDL studies outline the maximum amount of a pollutant a body of water can receive without violating water quality standards, and an allocation of that amount to the pollutant’s sources. Determining the Wasteload Allocation, the portion of a receiving water’s assimilative capacity that is allocated to one of its existing or future point sources of pollution, is often required in a TMDL study. Numerical modeling is an indispensable component of these studies.
As part of DSI’s committment to the scientific and modeling community, DSI is now providing a template script that modelers can use to run an HSPF model, process the output, run the EFDC+ model, and plot the output.
With so many new computer languages available today, a question often asked is, “Why is EFDC+ coded in Fortran language?”
EFDC+ support input of spatially and temporally varying boundary conditions as field files, which means user can assign…
Following the release of EEMS10.2, the DSI Team is busy developing exciting new features for the next version of EEMS….
Join Mr. Paul Craig, the chief developer of EFDC+ and EEMS to learn how domain decomposition and MPI can help speed up your EFDC+ model.
Objective: Use EFDC_Explorer (EE) and EFDC+ to demonstrate that impacts of…
Objective: Use EFDC_Explorer (EE) to visualize a 3D structure and background…
EEMS from version 10.2 onwards will include a Shellfish Farm Module. This module incorporates a modeling approach….
A primary function of EFDC+ is to solve the governing Partial Differential Equations (PDEs) for fluid flow and…
The MPI implementation in EFDC+ offers a significant improvement in run time compared to the OMP versions of EFDC+.
Objective: Use EFDC_Explorer (EE) and EFDC+ to replicate storm surge resulting from Hurricane Katrina (2005) in Florida Bay….