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1、Diagnostics : Error MessagesError MessagesThis section summarizes the most common error messages and solver messages generated by COMSOL Multiphysics. All error messages are numbered and sorted in different categories according to the following table.TABLE 2-1: ERROR MESSAGE CATEGORIESNUMBERS CATEGO
2、RY10001999 Importing Models20002999 Geometry Modeling30003999 CAD Import40004999 Mesh Generation50005999 Point, Edge, Boundary, and Subdomain Specification60006999 Assembly and Extended Mesh70007999 Solvers80008999 Postprocessing90009999 GeneralFor error messages that do not appear in the following
3、lists, contact COMSOLs support team for help.20002999 Geometry ModelingTABLE 2-2: GEOMETRY MODELING ERROR MESSAGESERROR NUMBERERROR MESSAGE EXPLANATION2118 Negative output from empty inputIncorrect Geometry M-file.2119 Non scalar output from empty inputIncorrect Geometry M-file.2120 Normal direction
4、s are inconsistentIncorrect input data from STL/VRML import.2138 Self intersections not supportedCurves resulting in self-intersections are not supported.2140 Singular extrusions not supportedError in input parameters.2141 Singular revolutions not supportedThe revolved mesh has a singularity at the
5、z axis. If possible, create the cylinder using a 3D primitive or by revolving the geometry before meshing.2146 Subdomain must bounded at least four boundary segmentsIncorrect geometry for mapped mesh.2147 Subdomain must bound one connected edge component onlyIncorrect geometry for mapped mesh.2190 I
6、nvalid radius or distance Incorrect input parameters to fillet/chamfer.2197 Operation resulted in empty geometry objectGeometry operation resulted in an empty geometry object which is not allowed. Make sure an empty geometry object is not created.2209 Geometry to revolve may not cross axis of revolu
7、tionThe axis of revolution and the geometry intersect. Check the dimension of the geometry and the definition of the axis for the revolution.40004999 Mesh GenerationTABLE 2-3: MESH GENERATION ERROR MESSAGESERROR NUMBERERROR MESSAGE EXPLANATION4002 A degenerated tetrahedron was createdThe mesh genera
8、tor ran into numerical difficulties while creating tetrahedrons with a size based on user-controlled parameters. Causes could be too small and narrow subdomains relative to the rest of the geometry or exceedingly short boundary segments. Try to avoid creating small and narrow subdomains and very sho
9、rt boundary segments that are adjacent to longer boundary segments.4003 A degenerated triangle was created The mesh generator ran into numerical difficulties while creating triangles with a size based on user-controlled parameters. Causes could be too small and narrow subdomains relative to the rest
10、 of the geometry or exceedingly short boundary segments. Try to avoid creating small and narrow subdomains and very short boundary segments that are adjacent to longer boundary segments.4012 Cannot create mapped mesh for this geometryThe geometry does not fulfill the topological requirements for a m
11、apped mesh. Changes in input parameters or further subdomain division can possibly help this.4026 Failed create matching edge discretizationsCannot make mapped mesh with the given input parameters.4029 Failed to insert pointProblems inserting point at given coordinate. Manually inserting a point the
12、re may help.4031 Failed to respect boundary element on geometry edgeThe mesh generator failed in making the elements compatible with the geometry objects edges. The reason for this could be that the face mesh is too coarse or contains adjacent elements with large differences in scale. Another reason
13、 can be that some subdomains in the geometry are too narrow with respect to the rest of the geometry.4032 Failed to respect boundary element on geometry faceSee Error message 4031.4044 Internal error boundary respecting See Error message 4031.4054 Invalid topology of geometryThe geometry object cann
14、ot be used for creating a mapped mesh. It must be subdivided.4055 Isolated entities foundEntities that are not connected to the boundaries of a geometry objects is found. The mapped mesh generator does not support such isolated entities.4119 Singular edge detectedThe geometry object contains an edge
15、 of zero length.60006999 Assembly and Extended MeshTABLE 2-4: ASSEMBLY AND EXTENDED MESH ERROR MESSAGESERROR NUMBERERROR MESSAGE EXPLANATION6008 Circular variable dependency detectedA variable has been defined in terms of itself, possibly in a circular chain of expression variables. Make sure that v
16、ariable definitions are sound. Be cautious with equation variables in equations.6063 Invalid degree of freedom nameThe software does not recognize the name of a degree of freedom. Check the names of dependent variables that you have entered for the model. See also Error 7192.6139 Wrong number of DOFs in initial valueThe current solution or the stored solution has for some reason the wrong number of degrees of freedom, sometimes due to a change of the implementat
