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Computational Astrophysics: The Digital Demo Room One-Dimensional Hydrodynamics Simulator Conley “Lee” Ditsworth under t

Computational Astrophysics: The Digital Demo Room One-Dimensional Hydrodynamics Simulator Conley “Lee” Ditsworth under the care and feeding of Dr. Charles F. Gammie and close supervision of graduate student Eric Engelhard. http://rainman.physics.uiuc.edu/ddr/oned/index.html. Project Goal.

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Computational Astrophysics: The Digital Demo Room One-Dimensional Hydrodynamics Simulator Conley “Lee” Ditsworth under t

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  1. Computational Astrophysics: The Digital Demo Room One-Dimensional Hydrodynamics Simulator Conley “Lee” Ditsworth under the care and feeding of Dr. Charles F. Gammie and close supervision of graduate student Eric Engelhard http://rainman.physics.uiuc.edu/ddr/oned/index.html

  2. Project Goal Convert an existing hydrodynamics computer code, written in C by Dr. Gammie, from a stand-alone program to an interactive simulator accessible through internet web browsers Secondary Goal: Enable future professors teaching graduate-level fluid mechanics a means of assigning additional homework! …sorry

  3. The Code • Original version uses initial conditions file to set up medium and type of wave • A perturbation sets the wave into motion • Program performs calculations and outputs data to files based on time steps • Code must be recompiled for every change in equilibrium conditions or type of wave

  4. Steps to Successful Completion • Re-write C code to accept input data file • Create web pages to guide user and accept inputs (html, cgi script written in Perl) • Write program(s) to convert output data first to images and then movie files • Make movie files and raw data available through the website

  5. The Current Situation • Code re-written to take equilibrium conditions from an input data file • Interactive website designed to gather inputs and create an input data file • Perl script created to run programs • Hydrodynamics code executes and creates output data files

  6. Current Status Continued… • SM (Super Mongo) plotting program converts raw data to ppm image files • mpeg encoder program (mpeg2encode) translates images into a movie file • Raw data and movie file archived and made available to user through website Sample Movie

  7. What’s Left To Do? • Plotted ppm image files need work • How to handle multiple users • Expand to have separate simulators for beginner, intermediate and expert level • Create a link to all archived files • Beautify the website • Write paper!

  8. That’s All Folks! The One-Dimensional Hydrodynamic Simulator Can Be Found At The Digital Demo Room: http://rainman.physics.uiuc.edu/ddr/oned/index.html Conley “Lee” Ditsworth Rm 235 LLP lee@shout.net or ditswort@uiuc.edu sorry, no office phone available…

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