[Gmsh] creating different meshes with similar number of elements

[Christophe Geuzaine]

> On 25 Jul 2019, at 02:23, Louise Olsen-Kettle <lolsenkettle at swin.edu.au> wrote:
> 
> I am trying to run some simulations with different meshes with similar number of elements (controlled by 
> Mesh.CharacteristicLengthMax). Is there a way to change the "seed" so that slightly different meshes with similar number of elements are created with the same geo file?
> 
> I would like to do some mesh sensitivity analysis on some crack propagation code.

We strive to produce reproducible meshes, so there's no option in Gmsh to force some randomness. You'll need to apply the perturbation on your side.

Christophe

> 
> Thanks!  Louise
> 
> Dr Louise Olsen-Kettle
> VC Women in STEM Fellow
> Mathematics Department
> Swinburne University of Technology
> Email lolsenkettle at swin.edu.au
> T +61 (0)3 9214 8318 @DrOlsenKettle 
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— 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine