# Comsol AB

Comsol AB Patent applications | ||

Patent application number | Title | Published |
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20140222384 | APPARATUS AND METHOD FOR DEFINING COUPLED SYSTEMS ON SPATIAL DIMENSIONS AND EXTRA DIMENSIONS - A simulation apparatus for adding extra geometries to a model of a physical system. The apparatus is configured to modify a geometry of a model of a physical system represented in terms of a combined set of equations. Instructions on the apparatus cause one or more processors to perform, upon execution, acts comprising: (i) receiving a base geometry of the physical system, (ii) receiving one or more extra geometries associated with the base geometry, (iii) determining first geometric entities of the base geometry and second geometric entities of the extra geometry, (iv) adding the extra geometries to the base geometry by computing a product geometry of the determined first geometric entities and the second geometric entities, (v) generating an updated combined set of equations including representations of the product geometry, and (vi) generating a graphical representation of the product geometry, the graphical representation configured for display on the display device. | 08-07-2014 |

20140047407 | SYSTEMS AND METHODS FOR CREATING APPLICATION INTERFACES FOR FORMING AND SOLVING PROBLEMS IN A MODELING SYSTEM - An apparatus for generating an application data structure includes a physical computing system comprising processor(s), input device(s), display(s), and memor(ies). The memory includes executable instructions that cause a processor to perform the acts of embedding a multiphysics model data structure for a physical system in an application data structure. Application features are determined to add to the application data structure. First data is added representing a form feature for the application features for the model of the physical system. Second data is added representing at an action feature for the application features. The second data is associated with at least one modeling operation to define a sequence of operations for modeling the physical system. The application data structure is updated including the added first and second data and the associating defining the sequence of operations. The updated application data structure is stored on the memory device(s). | 02-13-2014 |

20130197886 | METHOD FOR ASSEMBLING THE FINITE ELEMENT DISCRETIZATION OF ARBITRARY WEAK EQUATIONS INVOLVING LOCAL OR NON-LOCAL MULTIPHYSICS COUPLINGS - Disclosed are techniques for representing and modeling one or more systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model. A portion of the physical quantities and variables associated with the combined system may be selectively solved for. Also described are methods for computing the stiffness matrix, residual vector, constraint matrix, and constraint residual vector for the finite element discretization of a system of partial differential equations in weak form that includes local and non-local variables coupling multiple geometries. | 08-01-2013 |

20120303341 | SYSTEM AND METHOD FOR GRAPHICALLY CREATING MODELS FOR SIMULATING SYSTEMS OF REACTING SPECIES - A system and method for generating a model for simulating systems of reacting species includes receiving reaction formulas, determining a reaction rate expression for the received reaction formulas, and generating a model for simulating systems of reacting species using the received reaction formulas and the determined reaction rate expressions. The reaction list is pruned to deactivate one or more reactions based on one or more criteria. Using a graphical user interface, the reaction formulas may be received, the generated model may be displayed, the determined reaction rate expression may be modified, the generated reaction list may be displayed, and the generated species list may be displayed. An output based on the generated model may be displayed that includes the composition and temperature dependence of the system of reacting species. Material and energy balances may be generated for the reacting species as input to a solver of partial differential equations. | 11-29-2012 |

20120179426 | SYSTEM AND METHOD FOR ESTABLISHING BIDIRECTIONAL LINKS BETWEEN MULTIPHYSICS MODELING AND DESIGN SYSTEMS - A system and method for implementing, on one or more processors, a bidirectional link between a design system and a multiphysics modeling system includes establishing via a communications link a connection between the design system and the multiphysics modeling system. Instructions are communicated via the communication link that include commands for generating a geometric representation in the design system based on parameters communicated from the multiphysics modeling system. One or more memory components can be configured to store a design system dynamic link library and a multiphysics modeling system dynamic link library. A controller can be operative to detect an installation of the design system, and implement via the dynamic link libraries, bidirectional communications of instructions between the design system and the multiphysics modeling system. | 07-12-2012 |

20090259447 | Method For Assembling The Finite Element Discretization Of Arbitrary Weak Equations Involving Local Or Non-Local Multiphysics Couplings - Disclosed are techniques for representing and modeling one or more systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model. A portion of the physical quantities and variables associated with the combined system may be selectively solved for. Also described are methods for computing the stiffness matrix, residual vector, constraint matrix, and constraint residual vector for the finite element discretization of a system of partial differential equations in weak form that includes local and non-local variables coupling multiple geometries. | 10-15-2009 |