[Paraview] FW: Surface-constrained Streamtraces

[Adriano Gagliardi]

1. We do use VTKEdge and it is very fast. However, if you are using a
machine with an older, incompatible or no gpu, or you need a less dense
spread of streamlines (you can't control this in VTKEdge), then you need
another option.

2. I'll give this a go. I've definitely tried this in the past with no
success, but I've never used the mask points option. I'll let you know how
it goes.

Thanks,

Adriano

===================================

Adriano Gagliardi MEng PhD
Project Scientist
Computational Aerodynamics
Aircraft Research Association Ltd.
Manton Lane
Bedford

Tel: 01234 32 4644
E-mail: agagliardi at ara.co.uk
Url: www.ara.co.uk 
-----Original Message-----
From: Bastil2001 at yahoo.de [mailto:Bastil2001 at yahoo.de] 
Sent: 02 December 2009 23:18
To: agagliardi at ara.co.uk; 'ParaView'
Subject: Re: [Paraview] FW: Surface-constrained Streamtraces

1. why not use VTK_Edge? What is the drawback?
2. we do:
a. create vector from shear stress components (calculator) b. Extract the
part of multiblock-dataset we want to but streamlines on c. mask points,
random, draw d. StreamTracerWithCustomSource, Fluid as an Input and mask
points as an source, selecting the created shear stress vector field.

This works quite good but sometimes streamlines break at the border of a
block. However I was considering VTKEdge recently. Is it bad?


Adriano Gagliardi schrieb:
> Forwarding this on to the list.
>
>
> ===================================
>
> Adriano Gagliardi MEng PhD
> Project Scientist
> Computational Aerodynamics
> Aircraft Research Association Ltd.
> Manton Lane
> Bedford
>
> Tel: 01234 32 4644
> E-mail: agagliardi at ara.co.uk
> Url: www.ara.co.uk
> -----Original Message-----
> From: Adriano Gagliardi [mailto:agagliardi at ara.co.uk]
> Sent: 02 December 2009 14:24
> To: 'Berk Geveci'
> Subject: RE: [Paraview] Surface-constrained Streamtraces
>
> Yes, skin-friction, Cf.
>
>
> ===================================
>
> Adriano Gagliardi MEng PhD
> Project Scientist
> Computational Aerodynamics
> Aircraft Research Association Ltd.
> Manton Lane
> Bedford
>
> Tel: 01234 32 4644
> E-mail: agagliardi at ara.co.uk
> Url: www.ara.co.uk
> -----Original Message-----
> From: Berk Geveci [mailto:berk.geveci at kitware.com]
> Sent: 02 December 2009 14:10
> To: agagliardi at ara.co.uk
> Cc: paraview List
> Subject: Re: [Paraview] Surface-constrained Streamtraces
>
> Do you have non-zero vectors on the surface?
>
> On Wed, Dec 2, 2009 at 8:55 AM, Adriano Gagliardi 
> <agagliardi at ara.co.uk>
> wrote:
>   
>> Dear All,
>>
>> I have been having trouble with an issue using ParaView, where-by I'd 
>> like to create streamlines constrained to the surface of a wing i.e.
>> mimick oil-flow. Has anyone been able to get this to work? I am 
>> currently able to obtain this type of visualisation via the LIC 
>> algorithm
>>     
> supplied by VTKEdge.
>   
>> Any ideas?
>>
>> Cheers,
>>
>> Adriano
>>
>> ===================================
>>
>> Adriano Gagliardi MEng PhD
>> Project Scientist
>> Computational Aerodynamics
>> Aircraft Research Association Ltd.
>> Manton Lane
>> Bedford
>>
>> Tel: 01234 32 4644
>> E-mail: agagliardi at ara.co.uk
>> Url: www.ara.co.uk
>>
>>
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Aircraft Research Association Ltd.  Registered in England, Registration No 503668 Registered Office: Manton Lane, Bedford MK41 7PF England VAT No GB 196351245