Texas A&M College of Agriculture and Life Sciences
TAMU Hydrologic Modeling Inventory
A comprehensive inventory of models used in Hydrology, Hydraulic, Water Quality and Water Use Management Assessments

EPANET

EPANET was developed as a tool for understanding the movement and fate of drinking water constituents within distribution systems, and can be used for many different kinds of applications in distribution systems analysis. EPANET can be used to design and size new water infrastructure, retrofit existing aging infrastructure, optimize operations of tanks and pumps, reduce energy usage, investigate water quality problems, and prepare for emergencies. It can also be used to model contamination threats and evaluate resilience to security threats or natural disasters. EPANET’s user interface provides a visual network editor that simplifies the process of building piping network models and editing their properties and data.

 

Website:  https://www.epa.gov/water-research/epanet

Diffusion Analogy Flow Model (DAFLOW)

The model provides a time series of discharge, flow area, top width, and tributary inflow at node points along a system of one-dimensional open channels. The time series of hydraulic variables can be used as input hydraulics by a transport model, such as the BLTM water quality model. The model is designed to operate with a minimum of field data. It requires no cross sectional information, the channel properties being defined by hydraulic geometry coefficients which have been found to be fairly predictable for a wide range of river sizes throughout the world. The flow must be unidirectional and backwater must not be significant, so a downstream boundary condition is not required. Model accuracy improves with river slope and model time step size. The accuracy is excellent for upland streams and it can be used can be used with good accuracy for time steps as short as one hour as long as the slope is greater than 0.0003.

Description:  DAFLOW.pdf.    Contact: hejobson@verizon.net

___________________________________________________________________________________________________________________________________

MOdel for Urban SEwers (MOUSE)

MOUSE is a comprehensive modeling system for analysis of urban drainage and sewer systems including links to GIS. MOUSE simulates spatial variations in flows, water levels, sediment transport and pollution in pipes and open drains. MOUSE can be used for the prediction of hydraulic deficiencies, overflow sites, flood inundation areas, effect of real-time control, etc. MOUSE engine is used in the MIKE-URBAN widely used in modelling city water networks , including water distribution systems, storm water drainage systems, and sewer collection in separate and combined systems

Description: MOUSE.pdf   Website:  http://www.dhigroup.com

___________________________________________________________________________________________________________________________________

Physical Habitat Simulation (PHABSIM)

The purpose of the Physical Habitat Simulation System (PHABSIM) is to simulate a relationship between streamflow and physical habitat for various life stages of a species of fish or a recreational activity. The basic objective of physical habitat simulation is to obtain a representation of the physical stream so that the stream may be linked, through biological considerations, to the social, political, and economic world. The two basic components of PHABSIM are the hydraulic and habitat simulations of a stream reach using defined hydraulic parameters and habitat suitability criteria. Hydraulic simulation is used to describe the area of a stream having various combinations of depth, velocity, and channel index as a function of flow. This information is used to calculate a habitat measure called Weighted Usable Area for the steam segment from suitability information based on field sampling of the various species of interest.

Description:  PHABSIM.pdf   Website: https://www.usgs.gov/software/phabsim

___________________________________________________________________________________________________________________________________