GitLab

Vaggelis Papoutsis authored Dec 31, 2019 and Andrew Heather committed Jan 03, 2020

When activeDesignVariables are not set explicitly, all design variables
are treated as active. These were allocated properly when starting from
0 but not when starting from an intermediate optimisation cycle
(e.g. running 5 optimisation cycles, stopping and restarting).

TUT: added a new tutorial including the restart of an optimisation run
to help identify future regression

Vaggelis Papoutsis authored Dec 31, 2019 and Andrew Heather committed Jan 03, 2020

The controlBoxes wordList was removed from NURBS3DVolume in the
pre-release phase but writeMorpherCPs was not updated accordingly.

TUT: added the invocation of writeMorpherCPs in one of the tutotials to
help identify future regression

  - STYLE: remove redundant whitespaces

Changing to Eddy Dissipation Model the combustion casese
for fireFoam

- ensure that the updateControl is "non-sticky" on re-read,
  even if we do not support runtime-modifiable here

STYLE: add syntax example (wingMotion), but with updateInterval 1

The adjoint library is enhanced with new functionality enabling
automated shape optimisation loops.  A parameterisation scheme based on
volumetric B-Splines is introduced, the control points of which act as
the design variables in the optimisation loop [1, 2].  The control
points of the volumetric B-Splines boxes can be defined in either
Cartesian or cylindrical coordinates.

The entire loop (solution of the flow and adjoint equations, computation
of sensitivity derivatives, update of the design variables and mesh) is
run within adjointOptimisationFoam. A number of methods to update the
design variables are implemented, including popular Quasi-Newton methods
like BFGS and methods capable of handling constraints like loop using
the SQP or constraint projection.

The software was developed by PCOpt/NTUA and FOSS GP, with contributions from

Dr. Evangelos Papoutsis-Kiachagias,
Konstantinos Gkaragounis,
Professor Kyriakos Giannakoglou,
Andy Heather

[1] E.M. Papoutsis-Kiachagias, N. Magoulas, J. Mueller, C. Othmer,
K.C.  Giannakoglou: 'Noise Reduction in Car Aerodynamics using a
Surrogate Objective Function and the Continuous  Adjoint Method with
Wall Functions', Computers & Fluids, 122:223-232, 2015

[2] E. M. Papoutsis-Kiachagias, V. G. Asouti, K. C. Giannakoglou,
K.  Gkagkas, S. Shimokawa, E. Itakura: ‘Multi-point aerodynamic shape
optimization of cars based on continuous adjoint’, Structural and
Multidisciplinary Optimization, 59(2):675–694, 2019

  STYLE: add missing comment dashes, DOI
  DOC: add DOI into WatersKing.C

- same result, but approx 4x faster for this case

Andrew Heather authored Dec 09, 2019 and Mark Olesen committed Dec 09, 2019

The optional 'fields' entry can be used to limit which particle fields are
written to file.  If empty/not specified, all properties are written to
maintain backwards compatibility.

    patchPostProcessing1
    {
        type            patchPostProcessing;
        maxStoredParcels 20;
        fields          (position "U.*" d T nParticle);
        patches
        (
            cycLeft_half0
            cycLeft_half1
        );
    }

Andrew Heather authored Dec 09, 2019 and Mark Olesen committed Dec 09, 2019

File writing is off by default; to activate, add to the patch interaction model
coeff dictionary

    writeToFile yes;

- replace stringOps::toScalar with a more generic stringOps::evaluate
  method that handles scalars, vectors etc.

- improve #eval to handle various mathematical operations.
  Previously only handled scalars. Now produce vectors, tensors etc
  for the entries. These tokens are streamed directly into the entry.

Example,

     ($radius > 10) ? sin(degToRad(45)) : cos(degToRad(30))

- protect division and modulo against zero-divide.

- add scanner/parser debugging switches in the namespace,
  selectable as "stringToScalar". For example,

    debug parser:  foamDictionary -debug-switch stringToScalar=2
    debug scanner: foamDictionary -debug-switch stringToScalar=4
    debug both:    foamDictionary -debug-switch stringToScalar=6

- this allows use of #eval results in the tests

- avoids generating a log file, which is missing an "End" tag that
  allows the test loop to identify the completion status

- triggers rpmlint warnings

- cleanup the run script syntax