[FLASH-BUGS] was there a signbificant bug fix for hydo

[Markus Gross]

Hi!

Apologies right away if I am asking for too much here, I understand that if 
ever user would ask you how to run the code your inbox would be overflowing 
...

But I have a problem with hydro. I atteched an example visualisation to this 
mail. My problem is a jet, inflowing from a nozzle (the red and blue part in 
the image. The jet is impinging onto a half plate or a full plate (half plate 
shown in image the box-like part to the left)

It seems fine, apart from the "curtain" effect which you can see on the 
isosurface representing a density value.

I was opting for numerical diffusion at first, but the pattern does not seem 
to make sense. Maybe it is originating from corners at the individual blocks 
... Using more blocks gives me more ripples and the amplitude is not 
significantely reduced ...

I am still using FLASH2.1, so my question is basically: did you fix something 
which could cause such an effect?

Many thanks for your time! I will do my best to try to upgrade to 2.3 when it 
comes out.


Markus.


-- 
_______________________________________________________________

Markus Gross AMIMechE BEng (Hons.) Mechanical Engineering

Heriot Watt University Edinburgh
Department of Mechanical and Chemical Engineering

Associate member of the Institution of Mechanical Engineers
Member of the SPIE
_______________________________________________________________

further contact:

Phone   : +44 (0) 131 449 5111 etx. 4737

UNiX talk: talk markus at lasersim.mce.hw.ac.uk

_______________________________________________________________

"Plans are a place to begin," Grove said. "They rarely deliver
you to where you expect. Make your plans knowing you are going
to throw them away."

_______________________________________________________________


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