GGSD Program Details for PlaxFlow

PlaxFlow

Category	Groundwater flow (2D)
Publisher	PLAXIS B.V.
Platform	Win2000, WinXP, Vista
Status	Commercial
Description	PlaxFlow is a finite element package for the 2D analysis of transient and unsaturated groundwater flow problems in geotechnical engineering. The input of soil layers, structures, construction stages and boundary conditions is based on CAD drawing procedures, which allows for modelling of the geometry cross-section. From this geometry model, a 2D finite element mesh is generated. It allows for automatic generation of unstructured 2D finite element meshes composed of 3-node triangular elements, with options for global and local mesh refinement. Screen elements are used to simulate an impermeable screen. Wells are used to prescribe points inside the geometry model where a specific discharge is subtracted from (sink) or added to (source) the soil. Drains are used to prescribe lines inside the geometry model where pore pressures are set to zero. It offers an option to create circular and non-circular tunnels using arcs and lines. General groundwater heads or pore pressures and external water pressures can be generated on the basis of water levels. Groundwater heads and pore pressures can also be specified directly in individual boundary lines. A closed flow boundary is an object that can be placed at the boundary of the geometry model to ensure that flow across that boundary will not occur. Precipitation is a vertical infiltration that can be used to simulate weather conditions. Material properties for soil are entered in data sets, which are collected in the project database. Material data sets from the project database may be assigned to individual soil layers. Soil can be modelled at several levels of sophistication. The Van Genuchten model is available. Various types of soil can be selected on the basis of common soil classification systems (Hypres, USDA, Staring). Predefined data sets for the Van Genuchten and the Approximate Van Genuchten model are available for all types of soil. Multiple calculation phases may be created in which different sets of boundary conditions can be specified. The groundwater flow calculation kernel allows for steady-state and transient groundwater flow calculations. Time-dependent conditions can be defined by a linear or harmonic function or by means of an input table. The postprocessor has graphical features for displaying computational results, such as distributions of the groundwater head, pore pressure, degree of saturation and Darcy flux. Values of these quantities can be obtained from the output tables. Plots and tables can be sent to output devices or to the clipboard. Cross-sections can be used to create graphs for pressures, heads, and flow velocities. Curves can be drawn of selected points in the geometry to visualise the development of the groundwater head, pore pressure, degree of saturation or Darcy flux during the various calculation phases. Video animations can be created for all graphical outputs.
Cost	2400 Euro. (2D Suite: 8500 Euro). Educational discount available.
Data formats supported	None stated
Supplier in Australia	Techsoft Australasia Pty. Ltd.
Supplier in Brazil	Terratek Ltd
Supplier in China	China Academy of Building Research
Supplier in Egypt	El-Mossallamy, Dr. Yasser
Supplier in France	TERRASOL
Supplier in Hong Kong	Solutions Research Centre Ltd. (Hong Kong)
Supplier in India	Ram Caddsys Pvt Ltd
Supplier in Indonesia	GTL GEOTECH SERVICES
Supplier in Italy	GEOSPHERA High-Tech Supplies
Supplier in Japan	JIP Techno-Science Corporation (JTS)
Supplier in Lebanon	BAT Concept
Supplier in Malaysia	CONSOFT Technologies Sdn. Bhd.
Supplier in Mexico	GEO INGENIERIA ALFVEN, SA de CV
Supplier in Netherlands	PLAXIS B.V.
Supplier in Russian Federation	NIP-Informatica
Supplier in Singapore	CONSOFT International Pte Ltd
Supplier in South Korea	Basis Soft Inc.
Supplier in Taiwan	Genesis Group-Taiwan
Supplier in Thailand	Twoplus Soft Co., Ltd.
Supplier in Tunisia	Terrasol Tunisia
Supplier in Turkey	GEOGRUP INSAAT A.S.
Supplier in United Kingdom	Wilde FEA Ltd
Supplier in United States of America	GEMSoft
Supplier in United States of America	GEOCOMP Corporation
Supplier in United States of America	Lachel Felice & Associates