Add a feature of force decomposition

Issue/feature addressed

There is a strong correlation between vortical structures and pressure distribution over a solid body. To elucidate this relationship, a series of force partition methods have been proposed. This module uses a modified force element method to obtain Galilean invariant force partition results. The results are useful for flow analysis.

Proposed solution

A LaplacePhi equation is added to the ADRSolver to compute the weight functions. A volume integration and boundary integration modules are added in the FieldConvert module.

Implementation

See the code.

Tests

A test case has been added.

Suggested reviewers

Please suggest any people who would be appropriate to review your code.

Notes

Please add any other information that could be useful for reviewers.

Checklist

• Functions and classes, or changes to them, are documented.
• User guide/documentation is updated.
• Changelog is updated.
• Suitable tests added for new functionality.
• Contributed code is correctly formatted. (See the contributing guidelines).
• License added to any new files.
• No extraneous files have been added (e.g. compiler output or test data files).decomp