Hydrosim V Overview
Thoroughly updated and upgraded, the new Hydrosim V has a
wider application and is more versatile, user-friendly and time-efficient than
its predecessors. At the same time the program has retained enough of its
previous features to enable users to upload their existing MS-DOS-based Hydrosim
files without loss of continuity in ongoing projects.
The program can be used either as a standalone hydrological
package, or integrated directly into the ModelMaker and PipeMaker suites. It is
also fully integrated into IMQS (Infra-Structure Management Query Station).
Hydrosim V employs the kinematic method to compute overland
runoff – generally accepted as being the most accurate mathematical
representation of the rainfall-runoff process.
Design rainfall can be generated based on regionalised
parameters, such as Inland/Coastal Region and Mean Annual Precipitation.
Rectangular, triangular and Chicago-type synthetic storm patterns are available.
Alternatively, the user can input coefficients from standard IDF curves for
synthetic rainfall, or else a user-provided hyetograph.
The program can accommodate existing as well as new drainage
elements. The required pipe diameters or flow depths in channels can be output
in the case of elements that need to be designed, and the volume of temporary
storage is given where an existing element is undersized and no overflows are
The dual drainage concept is modeled in the case of
overflows, so that the user can determine the depth of flow in overflow channels
for recurrence intervals in excess of the design recurrence interval adopted for
the formal drainage system.
A reservoir routing option allows the user to insert one of
more reservoirs at selected locations in the network, to model the effects of
flood routing through detention storage.
The option of integrating Hydrosim V into ModelMaker enables
CAD interfacing with plan data and screen input of topographical data such as
catchment areas, overland flow lengths and slopes, as well as drainage element
Integrating Hydrosim V with PipeMaker extends the suite's
capabilities to computing quantities for pipe networks.
Hydrosim V can handle a number of elements limited only by the
Hydrosim V is fully integrated into IMQS where it forms the
stormwater module alongside the existing WADISO water distribution and SEWSAN
sewer analysis modules. This clearly offers significant benefits to regional
authorities regarding stormwater management policies and their implementation.