[gentoo-science] RFC: modeling software

[gentoo-science] RFC: modeling software

[Justin Findlay]

I'm doing some computational astrophysics research, specifically
modeling the effect of star novas on planetary motion and my problem is
that I don't know the best way to do this.

The nature of this research consists of my extending a model already
developed by my advisor, and the problem is that I want to translate
this model into a simulation and I don't know what software to use.  My
advisor has given me full discretion in using whatever tools I need, so
I thought I'd ask here since I don't know where else to ask.  Since he
hasn't stipulated the use of any software to model the research I want
to take this opportunity to get experience with some of the FLOSS
projects out there.

What software do you think would be most useful for this project?


Justin
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Re: [gentoo-science] RFC: modeling software

[M. Edward (Ed) Borasky]

Justin Findlay wrote:
> I'm doing some computational astrophysics research, specifically
> modeling the effect of star novas on planetary motion and my problem is
> that I don't know the best way to do this.
> 
> The nature of this research consists of my extending a model already
> developed by my advisor, and the problem is that I want to translate
> this model into a simulation and I don't know what software to use.  My
> advisor has given me full discretion in using whatever tools I need, so
> I thought I'd ask here since I don't know where else to ask.  Since he
> hasn't stipulated the use of any software to model the research I want
> to take this opportunity to get experience with some of the FLOSS
> projects out there.
> 
> What software do you think would be most useful for this project?
> 
> 
> Justin

"Modeling" is too vague a word to get a meaningful response. However, 
I'll assume that, since it's astrophysics, that you're solving some 
equations. There are two ways to solve equations, numeric and symbolic. 
You can also mix these approaches, although that's more difficult.

So ... can you specify the nature of the model? Is it equation-based? 
Numerical? Symbolic? Algebraic? Integral? Differential? None of the above?
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Re: [gentoo-science] RFC: modeling software

[Justin Findlay]

On AD 2008 February 07 Thursday 07:07:24 AM -0800, M. Edward (Ed) Borasky wrote:
> "Modeling" is too vague a word to get a meaningful response. However, I'll 
> assume that, since it's astrophysics, that you're solving some equations. 
> There are two ways to solve equations, numeric and symbolic. You can also 
> mix these approaches, although that's more difficult.

The equation solving is pretty easily done by hand so far.

> So ... can you specify the nature of the model? Is it equation-based? 
> Numerical? Symbolic? Algebraic? Integral? Differential? None of the above?

This is the part I don't quite understand.  Maybe I should ask my
advisor and then I can come back with a more specific question, but in the
movies modeling usually consists of a fancy full color 3D graphical
simulation with sound effects. :-)


Justin
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Re: [gentoo-science] RFC: modeling software

[Redouane Boumghar]

Hello everyone,

Justing, what do you mean by RFC ?
Is that about Rational Function Camera or Rational Function Coefficient ?
So you may need to model what a camera would see and I assume this can
be part of an astrophysical project using a rational function model.
But it seems you have to simulation nova stars effect on planetary motion,
and is there a best way to do that ?

Every little thing interacts with any little thing.
In my opinion, what is usually done is that researchers code their model
themselves in C/C++ (or other) using computional libraries and output files
that can be visualized in 3D using tools as VTK and others.

If you need animations and that you are ready to code a bit in python
to interpret your data into an animation, then you may use blender (blender3d.org).


If you have resolved the equations by hand, I assume your problem is only
about multimedia generation ?

Red.


Justin Findlay wrote:
> I'm doing some computational astrophysics research, specifically
> modeling the effect of star novas on planetary motion and my problem is
> that I don't know the best way to do this.
> 
> The nature of this research consists of my extending a model already
> developed by my advisor, and the problem is that I want to translate
> this model into a simulation and I don't know what software to use.  My
> advisor has given me full discretion in using whatever tools I need, so
> I thought I'd ask here since I don't know where else to ask.  Since he
> hasn't stipulated the use of any software to model the research I want
> to take this opportunity to get experience with some of the FLOSS
> projects out there.
> 
> What software do you think would be most useful for this project?
> 
> 
> Justin

-- 
Redouane BOUMGHAR
Physics, Remote Sensing and Digital Imagery

Email:  redouane.boumghar@magellium.fr
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