Fluid_Aspect_Course_Start - nasa/gunns GitHub Wiki

GUNNS Fluid Aspect Course

Summary and Synopsis
Prerequisites and Presentation

1. What is the Fluid Aspect and what do we use it for

1.1 What is the Fluid Aspect?
1.2 Vehicle Systems: Environmental Control & Life Support (ECLSS)
1.3 Vehicle Systems: Active Thermal Control (ATCS)
1.4 Vehicle Systems: Propulsion (Prop)
1.5 Vehicle Systems: Others

2. Fluid mechanics & thermo as implemented in GUNNS

2.1 Overview
2.2 Fluid Properties

2.2.1 Types & Phase
2.2.2 The T-s Diagram
2.2.3 PVT & Equations of State
2.2.4 Enthalpy & Heat
2.2.5 Entropy & Internal Energy
2.2.6 Other Properties
2.2.7 Fluid Objects

2.3 Mechanics & Thermodynamics

2.3.1 PVT Interaction
2.3.2 Phase Change
2.3.3 Fluid Flow
2.3.4 Thermo Processes on the T-s Diagram
2.3.5 Heat Transfer & Transport
2.3.6 Acceleration/Gravity & Pressure Head
2.3.7 Conservation of Mass & Energy

2.4 The GUNNS Effects

2.4.1 Conductance
2.4.2 Capacitance
2.4.3 Potential Source
2.4.4 Flow Source
2.4.5 Effect Combinations

2.5 Fluid Links and Nodes

2.5.1 The Fluid Link
2.5.2 The Fluid Node

2.6 Run Sequence

2.6.1 Fluid Transport
2.6.2 Integrate Flows and Associated Errors

3. Typical interactions with other aspects

3.1 Overview of Aspect Interfaces
3.2 T, Q Interface with Thermal
3.3 Valve Position Interface with Signal
3.4 N, τ Interface with Signal
3.5 Sensors Interface with Signal

4. Building fluid networks in GunnsDraw

4.1 Network Scope
4.2 Fluid Types

4.2.1 Fluid Config
4.2.2 Fluid States

4.3 Layout Do's & Dont's
4.4 Boundaries
4.5 Network Solver Config
4.6 Special Objects & Capabilities
4.7 Big Table of Links

5. Tuning

5.1 Overview of Tuning
5.2 Reducing the Variables
5.3 Tuning Conductors
5.4 Tuning Pressure-Sensitive Valves
5.5 Tuning Pumps & Fans
5.6 Tuning Thermal

6. Interfacing fluid networks together

6.1 General Guidelines
6.2 External Fluid Config
6.3 Sim Bus Interface
6.4 Alternate Setups

7. Run-Time

7.1 Common H&S Messages
7.2 Checking Nodes Health
7.3 Checking Mass Overflows & Conservation Errors

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