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THERMTRAJ : A FORTRAN program to compute the trajectory and gas film temperatures of zero pressure balloons

Author
Horn, W. J.
Published
Feb 1, 1983.
Physical Description
1 electronic document
Additional Creators
Carlson, L. A.
Online Version

Availability

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Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
A FORTRAN computer program called THERMTRAJ is presented which can be used to compute the trajectory of high altitude scientific zero pressure balloons from launch through all subsequent phases of the balloon flight. In addition, balloon gas and film temperatures can be computed at every point of the flight. The program has the ability to account for ballasting, changes in cloud cover, variable atmospheric temperature profiles, and both unconditional valving and scheduled valving of the balloon gas. The program was verified for an extensive range of balloon sizes (from 0.5 to 41.47 million cubic feet). Instructions on program usage, listing of the program source deck, input data and printed and plotted output for a verification case are included.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19830014272.
Accession ID: 83N22543.
TAMRF-4217-81-02.
NAS 1.26:168342.
NASA-CR-168342.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15712898