Research Fellows / Open Positions

Early Stage Researcher 1 at QMUL

Constrained optimisation with CAD-free and CAD-based parametrisations

This project continues on from previous work in the group on generic CAD-based parametrisations which are autmatically derived from the NURBS patches of the boundary representation of the shape (Xu et al, “CAD-based shape optimisation with CFD using a discrete adjoint”).  In this project the approach is extended to support trimmed NURBS patches that intersect, and to include imposition of geometric constraints such as minimal thickness, build-space or minimal radius. The approach is then demonstrated on industrial cases in collaboration with the industrial partners in the project.

Objectives:

• M1-M12: Improvement of regularisation for node-based parametrisations, (WP2) development of a surface-based methodology and implementation to impose geometric constraints for  CAD-free and CAD-based parametrisations. (WP5).
• M12-M20: Extension of the QMUL CAD-kernel (NURBS only) to support trimmed and intersected patches, adaptive refinement of patches, Secondment to OCC. (WP4).
• M20-M28: Development of a methodology and implementation to evaluate the cost of constraints and fitness of parametrisations, integration into workflows to adjust the parametrisation., Secondment to KTW.  (WP5).
• M28-M36: Integration with in-house solver for demonstration/evaluation, linking as a plugin into ParaView using the IODA API, Secondment to VW  (WP6).

For further details, contact Dr. Jens-Dominik Müller, j.mueller@qmul.ac.uk. To apply, follow this link.