CFD-related Fortran libraries and applications
The CFD Utility Software Library (previously known as the Aerodynamics Division Software Library at NASA Ames Research Center) contains nearly 30 libraries of generalized subroutines and close to 100 applications built upon those libraries. These utilities have accumulated during four decades or so of software development in the aerospace field. All are written in Fortran 90 or FORTRAN 77 with potential reuse in mind. The only exception is the C translations of a dozen or so numerics routines grouped as C_utilities. David Saunders and Robert Kennelly are the primary authors, but miscellaneous contributions by others are gratefully acknowledged. See 1-line summaries of the libraries and applications under the Files menu. Each library folder also contains 1-line summaries of the grouped subroutines, while each application folder contains READMEs adapted from the main program headers. NASA permission to upload actual software was granted on Jan. 24, 2014.
Advanced mission simulation and analysis tool
The Orbit Determination Toolbox (ODTBX) is developed by the Navigation & Mission Design branch at NASA Goddard Space Flight Center as an advanced mission simulation and analysis tool used for concept exploration, proposal, early design phase, and/or rapid design center environments. ODTBX functions and utilities are combined in a flexible architecture that allows for modular development of navigation algorithms and simulations. The core ODTBX functionality is realized through a set of estimation commands that incorporate Monte Carlo data simulation, linear covariance analysis, and measurement processing at a generic level.
slab3d is a real-time virtual acoustic environment.
slab3d is a real-time virtual acoustic environment rendering system. It includes two rendering applications, libraries for spatial auditory display and audio signal processing development, and a set of tools for HRTF analysis and visualization.
The TRANSIMS Studio application is an integrated development environment for the TRansportation ANalysis and SIMulation System (TRANSIMS). Components include a run time environment to execute TRANSIMS in parallel, as well as a full featured GUI.
TRANSIMS is an integrated system of travel forecasting tools for modeling regional transport systems. For more information, visit http://code.google.com/p/transims/
Simulation for spacecraft attitude control system analysis and design
42 is a comprehensive general-purpose simulation of spacecraft attitude and orbit dynamics. Its primary purpose is to support design and validation of attitude control systems, from concept studies through integration and test. 42 accurately models multi-body spacecraft attitude dynamics (with rigid and/or flexible bodies), and both two-body and three-body orbital flight regimes, modelling environments from low Earth orbit to throughout the solar system. 42 simulates multiple spacecraft concurrently, facilitating studies of rendezvous, proximity operations, and precision formation flying. It also features visualization of spacecraft attitude.