Search results
Results from the WOW.Com Content Network
3D view. HEC-RAS is simulation software used in computational fluid dynamics – specifically, to model the hydraulics of water flow through natural rivers and other channels.. The program was developed by the United States Army Corps of Engineers in order to manage the rivers, harbors, and other public works under their jurisdiction; it has found wide acceptance by many others since its ...
The 1-D equations are used extensively in computer models such as TUFLOW, Mascaret (EDF), SIC (Irstea), HEC-RAS, [5] SWMM5, InfoWorks, [5] Flood Modeller, SOBEK 1DFlow, MIKE 11, [5] and MIKE SHE because they are significantly easier to solve than the full shallow-water equations.
EPANET (Environmental Protection Agency Network Evaluation Tool) is a public domain, water distribution system modeling software package developed by the United States Environmental Protection Agency's (EPA) Water Supply and Water Resources Division.
HEC-1 is software that was developed by the US Army Corps of Engineers [1] to estimate river flows as a result of rainfall. It was written in the FORTRAN language and until 1984 could only be run on a mainframe computer. When desktop computers became popular the program was ported to the PC. [2]
The EPA storm water management model (SWMM) is a dynamic rainfall-runoff-routing simulation model used for single event or long-term (continuous) simulation of runoff quantity and quality from primarily urban areas.
The iterative proportional fitting procedure (IPF or IPFP, also known as biproportional fitting or biproportion in statistics or economics (input-output analysis, etc.), RAS algorithm [1] in economics, raking in survey statistics, and matrix scaling in computer science) is the operation of finding the fitted matrix which is the closest to an initial matrix but with the row and column totals of ...
Observe that after each subtraction, the bits are divided into three groups: at the beginning, a group which is all zero; at the end, a group which is unchanged from the original; and a blue shaded group in the middle which is "interesting".
The field is situated in Qatari waters, around 180 kilometers north from Doha, 80 kilometers north of Ras Laffan and the north-east coast of Qatar. Al Shaheen is the largest offshore field in Qatar and is part of the South Pars/North Dome Gas-Condensate field , stretching across 9,700 square kilometres in Iranian and Qatari waters.