Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] adra_v1_0.zip(6 Kbytes)|
|Manuscript Title: A program for the simulation and analysis of open atmospheric balloon soundings.|
|Authors: P. Alexander, A. de la Torre|
|Program title: Balloon|
|Catalogue identifier: ADRA_v1_0|
Distribution format: zip
|Journal reference: Comput. Phys. Commun. 151(2003)96|
|Programming language: Fortran.|
|Computer: 1.2 GHz, 256 MB PC.|
|Operating system: Windows ME.|
|Keywords: Balloon dynamics, Coupled integrodifferential equations, Runge-Kutta, Atmosphere.|
Nature of problem:
A version of the balloon equation of motion in an atmosphere that contemplates features not considered in previous works is presented. A coupled integrodifferential set results in the most general case. Numerical solutions become necessary to describe balloon dynamics but in a few simple cases. This work is intended for previous simulations of soundings, postflight analysis or general study of open balloon dynamics.
Depending on the conditions of the problem to be studied, an integral term of the balloon equation of motion has to be included or excluded and respectively a fourth or fifth order Runge-Kutta method has been implemented to find solutions. Notwithstanding the integrodifferential nature of the problem, the procedure does not require iterations, implying a significant run time saving.
Two-dimensional solutions are found.
The program takes about 1 second without the history term, but when it is included there is an increase by orders of magnitude according to the demanded time step and tolerance for the run.
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