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Documents

Jason Harvey edited this page Feb 19, 2021 · 1 revision

User’s Guide Documentation

Intro Presentation

GUNNS_Intro_Presentation.pdf

A high-level introduction for new & potential users.

User Customization

GUNNS_User_Customization.docx

This discusses various ways a user can extend & customize GUNNS for their needs without having to modify the core gunns/ repository. It is slightly outdated and still references ts-iss (TS-21’s SSTF sim). We’ll be replacing this document with up-to-date info in the Wiki….

CPU Load Predictor

Gunns_Timing.ods

This spreadsheet can help predict the total CPU load of a GUNNS network of a given type and size, for compiler optimiziation levels -g and -O2. Uses metrics collected from a single-thread Trick sim with a single network in it running on an Intel Xeon E5630 @ 2.53 GHz CPU….

Electrical Refresher and GunnShow Course

Electrical_Refresher.pdf

NOTE that GunnShow is obsolete and has been replaced by the GunnsDraw tool.

This is a good user introduction to the circuit analysis methods at the core of GUNNS and how to use GunnShow to create networks. It’s presented specifically for electrical networks, but all of these concepts also apply to fluid & thermal networks. This material is also inside the GUNNS repository at gunns/gunnshow/docs/GsTrainingCourseMaterials/ElectTraining….

GunnShow Fluid Network Tutorial

FluidNetworkTutorial.08.15.2013.pdf

NOTE that GunnShow is obsolete and has been replaced by the GunnsDraw tool.

This is an introduction to creating fluid networks in GunnShow. This material is also in the GUNNS repository at gunns/gunnshow/docs/GsTrainingCourseMaterials/FluidTraining.

Validation Documents

Early Fluid Validation Against Thermal Desktop

Orion_Station_FN_TestCase_GUNNS.pdf

This is an early validation of a GUNNS fluid network against an equivalent Thermal Desktop/FLUINT model. The last page is a diagram of the modelled system.

Early Thermal Validation Against Thermal Desktop

GUNNS_thermal_demo_052711.pdf

This is an early validation of a GUNNS thermal aspect model of part of an Orion/MPCV capsule against the equivalent Thermal Desktop model. Note that GUNNS is referred to by its original name, Multi-Use Flow Network (MUFN).

MMSEV PCS Validation

PCS.Simulation.Validation.pptx

This is a presentation by Mike Moore of his validation of a GUNNS fluid network against data collected from actual hardware tests of an Orion/MPCV Pressure Control System (PCS).

Electrical Aspect Validation Report

electrical_validation.pdf

This presents a comparison of GUNNS networks against equivalent physical RC circuit builds and NI Multisim COTS tool models. GUNNS compares very well against both real-world hardware data and Multisim. A few minor discrepancies and their workarounds are discussed. The document, source files and experiments data reside in the gunns-dev repo at: docs/electrical_validation….

Technical Documents

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