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​​Sobek 淹水模擬軟體

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SOBEK模式為荷蘭WL|Delft Hydraulics公司所研發,為一套整合河川、都市排水系統與流域管理之商用程式。,包含降雨逕流、河道演算、 水質模式、輸砂模組、即時控制(real time control)及漫地流(overland flow)等模組。應用上包含河川、都市下水道系統之水理計算 及區域淹水模擬,可供防洪及水資源管理者進 行管理、決策與分析之用

SOBEK Suite

Throughout the world, there is a growing need for integral water solutions. We need protection from excess water in order to live safely in delta areas and river basins. Our water systems also need to be clean and sustainable. To support water authorities, consultancy firms, research institutes and universities worldwide, Deltares offers an integrated 1D/2D modelling suite called SOBEK for integral water solutions. 

SOBEK is a powerful modelling suite for flood forecasting, optimization of drainage systems, control of irrigation systems, sewer overflow design, river morphology, salt intrusion and surface water quality. The modules within the SOBEK modelling suite simulate the complex flows and the water related processes in almost any system. The modules represent phenomena and physical processes in an accurate way in one-dimensional (1D) network systems and on two-dimensional (2D) horizontal grids. It is the ideal tool for guiding the designer in making optimum use of resources.

Fields of application


SOBEK is a modelling suite designed for water authorities and water management consultancies. Is is suited for modelling and analysis of:
  • Open channel hydraulics: local, regional and national water systems
  • Sewerage and urban drainage systems
  • Inundation and flooding scenario simulations
  • Water quality predictions
  • and the design and optimization of control systems for canal and waterway automation

SOBEK 3 Key Features


The most prominent features of SOBEK 3:
  • Central map with spatial editor
  • Customizable and dockable window views
  • Connectivity to online data bases
  • Python scripting
  • Delft-FEWS, OpenDA and OpenMI compatibility
  • Delta Shell Framework

Validation


The validation of a modelling system such as SOBEK requires continuous attention. Even though the individual programmes of the suite have been thoroughly tested during their development, the suite as a whole requires intensive testing and validation too. To this end, a regular programme is established and tests of many of the most likely combinations are continually performed. As a policy, new versions are released only after an extensive beta testing period, to ensure that our users are only provided with stable and validated products.

Functionality


SOBEK has been developed – and is being developed further – jointly with Dutch public institutes and governmental organisations, research institutes, universities and private consultants all over the world.

Integrated approach


SOBEK offers one software environment for the simulation of all management problems in the areas of river and estuarine systems, drainage and irrigation systems and waste water and storm water systems. This allows for combinations of flow in closed conduits, open channels, rivers overland flows, as well as a variety of hydraulic, hydrological and environmental processes.

Powerful simulation engine


The hydrodynamic 1D/2D simulation engine is the computational core of SOBEK. This engine is used in all D-Flow programmes within  SOBEK modelling suite. Thus allowing the combined simulation of pipe, river-, channel- and overland flow through an implicit coupling of 1D and 2D flow equations. SOBEK is the ideal tool for studying the effects of dam breaks, river floods, dike breaches, urban flooding etc.

Robust numerical operations


The hydrodynamic 1D/2D simulation engine is equipped with a very robust scheme for numerical computation. It also guarantees mass conservation, even in case of transitions through suddenly varying cross section shapes. The engine combines computations of subcritical and supercritical flow, at scales selected by the user. It handles flooding and drying of channels without the use of artificial methods such as the Preissmann slot.

Numerical efficiency


The hydrodynamic 1D/2D simulation engine has a very efficient numerical solution algorithm. The algorithm is based upon the optimum combination of a minimum connection search direct solver and the conjugate gradient method. It also applies a variable time step selector, which suppresses the waste of computational time wherever this is feasible.

Size of models


The size of the model is only limited by the size of the internal memory of the computer used.

Modules


SOBEK allows you to simulate the interaction of water and water related processes in time and space. The suite is mostly used for the modelling of integrated water systems for water management, design, planning and policy making. SOBEK consists of a number of well-tested and validated modules, which are linked to and integrated with one-another. These modules are listed below.

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