NASA_Software_Catalog_2014.pdf#sthash.Rk7M8wlL

Generalized Fluid System Simulation Program (GFSSP), Version 6.0MFS-33019-1The Generalized Fluid System Simulation Program (GFSSP) is a general software tool that can performcomplex fluid flow analysis in a wide variety of applications, including those related to chemical processing,gas processing, power plants, hydraulic control circuits, and various kinds of fluid distribution systems. Thetool models liquid fuel phase changes that include compressibility and mixture thermodynamics and allowsthe user to apply and vary “what-if” effects of external influences.U.S. Government Purpose ReleaseGeneral-Use Nodal Network Solver (GUNNS)MSC-25468-1GUNNS is a flow system modeling software package that combines nodal analysis and the hydraulicelectricanalogy to simulate fluid, electrical, and thermal systems. It has a reusable component andsystem design that allow integration with a graphical user interface (GUI), and provide the capabilityfor rapid GUI-based simulator development, ease of maintenance, and associated cost savings.U.S. Government Purpose ReleaseGeneric Reusable Aerospace Software Platform (GRASP)GSC-15695-1The purpose of GRASP is to provide a generic operating-system-independent framework for creatingmulti-process real-time applications. In the modular GRASP architecture, all operating system and hardwareinterfaces are isolated within GRASP libraries. The application developer uses GRASP interface libraries anddevice drivers to interact with external hardware. Should a new hardware item require a driver, that developmentwould be part of GRASP and would be added to the GRASP interface libraries and become availablefor future projects. GRASP application software is developed by using the GRASP template, which offersaccess to the services GRASP provides. The templated generic code handles process initialization, threadcreation, inter-process messaging, process health monitoring, data logging, data distribution, etc., withhooks that provide for subsystem tailoring. Using GRASP allows application developers to concentrateon mission specifics, reducing development time, cost, and risk.U.S. Government Purpose ReleaseGlobal Modeling Initiative (GMI) SoftwareGSC-15363-1The Global Modeling Initiative (GMI) is a state-of-the-art, modular 3D chemistry and transport model(CTM) that can be used for assessment of the impact of various natural and anthropogenic perturbationson atmospheric composition and chemistry, including, but not exclusively, the effect of aircraft.U.S. Government Purpose ReleaseGoddard Dynamic Simulator (GDS)GSC-15340-1The Goddard Dynamic Simulator (GDS) is used to test both software and hardware flight systems. GDSsoftware integrates the dynamics equations of motion for a spacecraft, models environmental forces actingon the spacecraft, models spacecraft components such as reaction wheels, thrusters, star trackers, otheractuators and sensors, and instruments.U.S. Government Purpose ReleaseGoddard Mission Services Evolution Center Architecture ApplicationProgramming Interface (GMSEC API)GSC-15143-1The GMSEC Application Programming Interface (API) supports and enhances GMSEC architectureconcepts. It is an isolation layer that allows GMSEC architecture users to change out commercial off-theshelfand government off-the-shelf information or message buses without any software changes to theGMSEC components. Please visit the following URL for additional information: Open Source10. Design and Integration ToolsNASA Technology Transfer Program Software Catalog 2014 91