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Introduction

Control is used to regularize the design variables updates, which are given by the Algorithm as illustrated in Figure 1. It also updates the properties of the model_part. This is also used to transform data between physical and control spaces.

Control data flow

Figure 1: Control data flow

Working space

As explained above Control will work in the control space and physical space.

Data flow and work flow

Control is responsible for updating the model_partand its properties (i.e. mesh, domain values) with the new design given by the Algorithm. First it will map the control space design (i.e. \(\underline{\hat{\phi}}\)) to physical space (i.e. \(\underline{\phi}\)) using the Filtering. Then these physical space values are used to update the mesh or the domain values.

Control is also responsible for mapping physical space gradients (i.e. \(\frac{dJ_1}{d\underline{\phi}}\)) to control space (i.e. \(\frac{dJ_1}{d\underline{\hat{\phi}}}\)) using the Filtering method as illustrated in the Figure 1.

Notes

  1. A control should only work in one domain (or Kratos::ModelPart). If more than one domain is required control (or Kratos::ModelPart) then, they should made to one domain using union utilities.

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