B-H Curve Checker
Application ID: 71651
This app demonstrates the following:
- Importing measured data from a text file
- Handling measured data using methods
- Exporting the results to a text file.
The app can be used to verify and optimize B-H curves using experimental data. It also generates curve data in the over-fluxed region, where measurement are difficult to perform. It removes the unphysical ripples of the slope of the B-H curve that might cause numerical instability.
The original B-H curve is evaluated from two aspects. Firstly, to verify that the extrapolation of the curve is reasonable from the physical point of view. Secondly, to check if the slope of the curve is smooth. The optimization algorithms are mainly based on the simultaneous exponential extrapolation method and the linear interpolation method, respectively.
The app requires the original curve data defined in a text input file. Once the curve is imported, the application checks if optimization is required. By clicking the 'Optimize Curve' button, the user can generate the optimized curve data, which can be exported to a text file.
This application example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.