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Multiphysics simulations

Many problems in modern science or engineering are of multiphysics character. This means that they are governed by more than one type of physics, each normally represented by a set of partial differential equations. At RISE we can solve complex multiphysics problems to help product development or risk assessment for our customers.

In order to achieve this, we have several softwares at hand such as Abaqus and OpenFOAM. These are phenomena for which the solution of each individual physical problem cannot be obtained independently of the others. Examples of these include combined fluid dynamics/chemical engineering or heat transfer/mechanical engineering problems.

In order to achieve high quality models, we have a database of detailed measurements of the material properties to be used in the simulations, e.g. thermal and mechanical properties, chemical species analysis and combustion behavior.

Heat transfer calculations

In many engineering applications it is of high interest to estimate the response of a product at elevated temperatures. In Abaqusthe temperature in a product can be determined by using the heat transfer analysis where realistic boundary conditions are easily implemented.

 

 

Structural mechanics
Photo: Johan Sjöström
Stress and deflection of a fire exposed steel beam. The simulation only shows one half of the symmetric problem.

Mechanical behavior of fire exposes beams

Full 3D simulations of fire exposed steel beams can identify weaknesses and failure times of constructions. Abaqus CAE offers many degrees of freedom in applying boundary conditions and varying the thermal properties of materials over time, temperature or spatial coordinates.

More information

 

Johan Anderson

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Johan Anderson

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