Week 1 : Exploring the GUI of GT-POWER

1) GT - Suite Application and modules

Engine Performance and Acoustics
Exhaust aftertreatment
Cooling Systems and Thermal management
Air Conditioning/Waste heat recovery
Fuel injection
Hydraulics and Pneumatics
Lubrication Circuits
Vehicle and HEV fuel Economy and Performance
Transmission and Shift quality
Cranktrain and Crankshaft Dynamics
Valve train Kinematics and dynamics
Timing and Front End drive systems
Engine Real time
Aerospace Systems

Flow
Mechanical
Thermal
Electromagnetic
Control
External Model Links
Acoustics

To solve mathematical model
TO capture real physics
Heat transfer - Exhaust manifold , water jacket
Chemical kinetics - In cylinder combustion and After treatment
Fluid mechanics - Pipe pressure losses , port geometry

2)Locate the Following settings -
a)Time control Flag - Run setup -> Time control flag -> Object value -> Continuous/Periodic

b)Time Step and solution control - Run setup -> Flowcontrol -> Time Step and solution control Object -> Implicit/explicit

b)Time Step and solution control - Run setup -> ODEControl -> Time Step and solution control Object -> Implicit/explicit

c)Integrator/Solver type - Run setup -> ODEControl -> Integrator/Solver type ->Implicit/explicit/static

3)Explore intercooler tutorial with notes and note down all settings of

a) run set up -
Time Control
Time Control Flag - Continuous
Maximum Simulation Duration(Time) - unit(s) - 0.5
Minimum Simulation Duration(Time) - unit(s) - ign
Automatic Shut off When stedy state - on
Main Driver(Defines Periodic Frequency)
-Automatic

Initialization
Initialization State - user_imposed

User imposed Methods
Part attributes

FlowControl
Part Name List Object Identifying Circuits belonging to Column - def
Time Step and solution control Object - Explicit

ODEControl
Part Name List Object Identifying Circuits Belonging to Column -def
Matrix Sparse Format Solver (BETA for CSR) - Skyline
Matrix (Node Order) Optimization Method - Cuthill-McKee
Integrator/Solver Type - Explicit-Runge-Kutta
Time Step and Solution Control Object -Explicit-def
Time Step Output Frequency - def
Solve All Circuits Together (Single Solution Cluster for the Column) - on
Displacement SS Tolerance for Auto ShutOff -fraction -ign
Velocity Steady-State Tolerance for Auto Shutoff - fraction - ign
Torque Imbalance Tolerance for Auto ShutOff -fraction - def(0.002)
Consecutive Cycles/RLT Update Intervals for Steady State -1
Modal Analysis Property Object - ign
Matrix Inversion Scheme (electrical sol. only) - SVD

Thermal Control
Part Name List Object Identifying Circuits Belonging to Column - def
Thermal Wall Solver - automatic

Thermal Wall Calculation Interval - unit(s) def
Thermal Wall Steady-State Tolerance for Auto Shut-off- unit(K/s) -ign
Convergence Threshold for Flow Solver Skipping -- unit(fraction) -ign
Number of Thermal Calculation Intervals to Skip Flow Solver - ign
Periods at Initial Wall Temperature (WallTempSolver only) - def(3)

b) Advanced Setup
General
Fixed Time Step Size (Overrides Flow and Mech Step) s ign
Initial Seed for Random Number Generation def
Convergence Exclusion Part List ign

Flow
Bend Loss Table ign
Gibbs Equilibrium Calculation off
Adjust Nitrogen Molecular Weight to Compensate For Argon on
Air Object for Ref Stoich AF Ratio (or value for multi-fuel models) def
Dump 2nd law output? off
Dead State for 2nd Law Output ign
More Conservative Timestep Limit for Single-Volume Pipes off
More Conservative Timestep Limit for Flowsplits with Small Holes off
More Conservative Timestep Limit for Absorbing Flowsplits (Wool) off
Stable Flow Through Cylinders at Large Timesteps
true Improved Solution for Large Flow Through Cylinders off
false More Conservative Timestep Limit for Large Flow Through Cylinders on
false Small Mass Protection in Cylinder off
Cylinder Efficiency Analysis off
Improved Stagnation Condition Calculation in Turbomachinery Templates on
Alternative Calculation of Laminar Flow Losses in FMTs off
Alternative Orifice Calibration Method for FlowPDropSimple Objects on
Improved Calculation of Default Pressure Loss Coefficient for Diffusers on
Improved Implicit Solver Global Residual Definition on
Improved FluidRefrigerant Properties Lookup on
Improved Scavenging Profiles Lookup on
PipeTable Treated as a Solver Compound off
Use Min/Max Temperature Limits when Evaluating Properties off
Use Faster Momentum Calculation off
Mass Fraction Threshold to avoid Underflow Slowdown ign
Transport Properties for Species without Data always air
Clausius-Clapeyron Based Saturation Curve Calculation for Water off
Alternate Solver for Improved Stability (Explicit Only) off
Alternate Implicit Solver for Faster Convergence of Multi-Fluid Flows off
Automatic Detection of IVC for Cylinder RLT Determination off

Mechanics
Gravitational Acceleration Vector m/s^2 ign

Version Changes
Version Setting for Non-itemized Changes v2019
Detailed Evolution Flags (GT Use Only) ign
Acoustics
Improved Linear Analysis Calculation for Non-default Orifices Connected to Boundary Condition on
Improved Linear Analysis Calculation for PipeRoundFlexWall on
Corrected Resistance for Absorbing Flowsplits (Wool) on
Improved Steady Thermal Solution for Absorbing Flowsplits (Wool) on
Compressors, Turbines, Pumps
Fix Turbine Template RLTs with more than 1 Inlet on
Improved Enthalpy Calculation for Pumps on
Improved Friction Calculation for Internal Turbine Wastegate on
Turbine/Compressor: Improved Temperature of Exiting Gas on
Controls
Improved Initialization of Controls Components v2019
Improved 'time' Variable for Controls Components Equations on
Fix Model Convergence Check if Controller Deactivation is Used on
Corrected Initialization for PIDController on
Corrected Indices for Product and PIDController Templates on
Corrected SignalGenPhaseFiringOrder for Main Driver with Non-Zero Start of Cycle off
Cranktrain
Corrected Calculation of Avg. Engine Speed (when actuated) on
Improved Integration of EngineCrankTrain RLT's on
Improved Integration of EngineCrankTrain Cycle-Averaged Sensors v2019
Corrected Actuation of Oil and Coolant Temperatures for EngFrictionSR on
Cylinders
Fix Cylinder Heat Transfer Rate and CrankTrain Inst. Heat Rejection Rate Sensors (RT Solver) on
Corrected Valve Heat Transfer for Cylinder Pressure Analysis on
Improved EVO Detection for Cylinder Heat Transfer on
Fix EngCylinder Heat Transfer RLT on
Fix Maximum Temperature RLTs on
Correct Improper Disabling of In-Cylinder Radiation on
Corrected GTI_Cylinder Real Gas Option on
Improvements to EngCylFlame for Non-SITurb Use on
Corrected Knock Induction Time Integral RLT for SITurb on
Include Fresh H2O and CO2 in the Diluent Concentration for Kinetics-Fit-Gasoline Knock Model on
Fix Cylinder Slaving v2019
Allow Actuation of Combustion Attributes Until Start of Combustion v2019
Correction to non-standard MEP RLTs v2019
Corrected Cylinder Emissions RLTs When Using Emissions Map on
Piston Pin Offset Correction v2017
Corrected Shifting and Smoothing of Pressure for Multi-cycle TPA on
Enable Knock Calculations at Start of Cycle v2018_b2
Improved Vol. Eff. for Cylinders in 2+4 Stroke Mode on
Improved Normalization of Combustion Quantities v2018
Fix CCV calculations for the FVV model off
Corrected FluidMixture handling in EngCylInit for non Fuel Species on
Fixed Initialization of some Cylinder Heat Transfer Models off
Allow Radiation Heat Transfer for SI Combustion on
Fix Dynamic Compression Ratio RLT for Piston Position Actuation on
Fix Calculations for EngCylCombDualFuel v2017
Rebalance Species Mass Fractions when Using Soot Model on
Fix PreChamber Calculations v2019
Data
Corrected XYZPoints Behavior when Upper/Lower Boundaries Intersect v2018
Corrected Non-Default Units for Excel Array Data on
Improved Truncation of Data in XYTable on
Improved Moving Average Algorithm on
Use Correct Driver for ProfileAngles when in Load Mode off
Correct ProfilePeriod Lookup when TimeControl is 'Continuous' off
Corrected Conversion of Non-Defaults Units in XYZFunction on
Corrected RLTDependenceMulti Lookup on
Corrected Conversion of Non-Default Units in RLTDependenceMulti on
Friction & Tribology
Composite Surface Roughness Calculation Method Old
Corrected Mean Surface for Roughness Parameter Extraction (Tomanik/McCool) off
Corrected Effect of Lubricated Pad Position on Piston Friction on
Corrected Impedance Maps for Side-pressurized Bearing on
Electrical
Improved Initialization of Electromagnetics Components on
Corrected Stator Motion when Incoming on
Improved Explicit Electromagnetics Solution on
Fix Fuel Cell Calculations v2019
Flow, Other
Improved Solution for EndEnvironmentTPA v2018
FlowPDropTableRef and FlowPDropLossCoef: Improved Handling of Low Flow Data on
Fix Altitude Correction with Previous Case Initialization on
Improved FluidReservoir Solution if Liquid/Gas Interface Crosses a Port v2019
Improved Tank3D Solution if Liquid/Gas Interface Crosses a Port on
Fluid Properties
Improved Evaluation of Fluid Properties v2018
Improved Combustion Calculations on
Improved Calculation of Latent Heat when Condensing Using "on_wall" on
Improved Run-time Evaluation of Fluid Properties on
Improved Enthalpy for FluidNASA-LiqGas below Minimum Temperature of Fitting Range on
Heat Exchangers
Corrected Heat Transfer Area When Scaling MatrixHA on
Corrected Volume Calculation for Multi-Pass HXs on
Improved Pressure Drop Correlation for Refrigerant HXs on
Improved HxNuMap(Refrig) Correlation on
Improved FlowPDrop Regression with Humid Air Condensation on
Improved HxNuMap* Preprocessing v2018
Corrected Louver-Fin Correlation on
Improved Results for HxGeomGeneral with Single Volume on
Hydraulic
Improved Jet Force Calculation for Spools on
Corrected Maximum Area for SpoolNotchGeometry(MH) on
Corrected Non-Linear Spring for FluidPistonAndSpring on
Injectors
Improved Solution for GT-POWER Injectors v2019
Improved Handling of Transient Injector Quantities v2016_b2
Correct Calculation of Global CA for valves and injectors on
Improved Solution when Injecting into Burner v2019
Miscellaneous
Corrected Explicit Euler ODE Integration on
Corrected End of Cycle Detection for ODE Circuits using ISS on
Alternative Maximum Timestep for Models Without Thermal Parts off
Remove 0.0008 sec Cylinder Timestep Restriction on
Parallel Processing Fixes v2016
Improved Driver Angle Sync. for Multi-Circuits Models using ISS on
Improved Consistency of Part Order Read by Solver off
Improved Unit Handling for Arrays off
Improved Unit Handling for Temperature Shift Attributes on
Orifices, Valves, Throttles
Improved Flow Calculation in Valves, Throttles v72_b2
Update Valve Lift Profile at Local Start of Cycle on
Improved Logic for Valve Type Detection on
Corrected Valve RLTs V2018
Enable Part Override for Valve Reference Diameter on
Allocate Valve Lift Profiles per Parts on
Improved Solution for Orifices with Thickness v72
Apply Laminar Face Friction Multiplier in Orifices on
Improved Discharge Coefficient Calculation for Contractions on
Corrected Flow Area for Multiple Holes in Orifice (Implicit Solver) on
Allow Valve*Conn to Use Driver from Adjacent EngCrankcase Part off
Corrected Area for Select Valves in Hydraulics/Pneumatics (Simple) Library on
Corrected XYTable Usage for CD in ValveActuLiftAreaCon on
Pipes, FlowSplits
Improved Solution for FlowSplitTRight on
Use Geometric Area for Pipe and FlowSplit Friction Loss on
Fix Non-Circular Pipe improved_friction_bend Flow Loss Model on
Enable transient profile in puddle fuel fraction in port on
Fix for switching condense/evaporate option case by case on
Thermal
Always Model Liner Inlay as Separate FE Structure on
Improved Lookup Accuracy for F.E. Cylinder Structure Gas Boundary Conditions on
Improved Laminar Heat Transfer Model on
Improved Thermal-Flow Solution Method on
Corrected Conduction for PipeCrossSection and PipeRectangle on
Improved Thermal Solution For FlowSplitNode on
Fix EngCylTWallSoln Time Step for Multiple ODE Circuits on
Fix Effective Gas Temperature for Calculated Wall Temperature on
Fix Port to Head Conduction Heat Trans. Area off
Improved Thermal Wool Solution for Continuous Simulations on
Fix Flowsplit and FluidMachineChamber Heat Transfer Coefficient If Port Area is 0 on
Fix RLT for Piston Skirt Net Heat Transfer Rate on
Fix def Piston/Bore Area Ratio for Custom FE Cylinder on
Improved Execution Sequence for Thermal Solution on
Corrected Thermocouple Solution When the Same Thermocouple is Used in Multiple Parts on
Corrected Expansion Diameter Calculation in FluidMachineChamber on
Corrected Thermal Solution Initialization on
Fix External HTC behavior in Temperature parts on
Corrected Thermocouple Temperature Initialization on
Uncategorized
Enable Mass & Energy Balance Correction in CFDFieldImport on
Fix Detection of Refrigerant Circuits on
Enable Species Calculation Correction in CFDFieldImport off
Fix Thermostat Initialization on
Corrected Sign Convention for SolenoidMap off
Improved Behavior for Plate Heat Exchangers off
Improved Behavior for Fouling off

Misc Files
Additional Files to Send (Distributed Runs) ign
File Type ASCII

c) Plot setup
Max plot points 1500
Sampling type Timestep
Location 0.5
X-Axis - Automatic
Sampling Interval 1
Plot range Automatic
Interpolation option: use_nearest_volume

d)Output setup
Data_Storage
RLT Calculation Interval (Continuous Circuits) s 0.05
true Store Case RLT Results?
false Storage Level for All Parts NOT Listed Below All
false Storage Level for "Exception" Parts Listed Below All
false "Exception" Parts List ign
false Store Time RLT Results?
List of RLT's to store (ALWAYS) ign
Plots and Table Data Storage Settings
Time Shift on X-Axis for EntireRun and TimeRLT Plots s ign
Data Suppression for EntireRun Plots and TimeRLTs: Threshold Time s ign
Suppress Storage of Instantaneous Plots off
Suppress Storage of Pre-Processed Plots off
Suppress Storage of Tables (except EndOfRun Tables) off
General
Thinning Method for Limiting Large Arrays to Maximum Point Limit Automatic
Do Not Show Warning Dialog for Large Result Sets off

General
Legend for Plot Header (OBSOLETE) def
Timestep Plot on
Store RLTs for Tracking Memory (RAM) Consumption off
Vehicle Energy Use and Loss Plots off
Suppress .brf file (file not available in future) on

GT-POST_Setup
X-Axis RLT for Case Sweep Plots def
X-Axis RLT for Time RLT Plots (only used in Periodic Circuits) time
Automatically Compare RLT Results with External Data
false External Data File for Comparison
false Worksheet Name for Excel File def
false Associated Formatting File
Plot Formatting File def

Flow
Data Storage
false Number of Flow Animation Points ign
false Store Microphone Data Automatic
false Order/Mode Storage Object for Acoustic/Frequency Analysis ign
false Number of Order Storage Points 720
Maximum Harmonics Stored for Acoustic/Frequency Analysis def
Miscellaneous Flow Options
Calculate Water Saturation (Dew) Temperature RLT LastRLTInterval
Store Flow and Engine Results Summary in .out File? no

ODE-Mech
ODE Solver Numerics Results off
Mechanical Model 2-D Plot and Animation Object ign
Kinematic Model 2-D Plot and Animation Object ign
Frequency Analysis 2-D Plot and Animation Object ign
Mechanical Model 3-D Plot and Animation Object ign

ScoreboardRLTs
Cranktrain Engine
Cylinder Cylinder
Turbo Turbo
Lubrication Lubrication
Detailed Injector Injector
Vehicle Vehicle
Heat Exchanger HeatExchangers
Refrigerant Flow Machinery RefrigFlowMach
Battery Battery

UserScoreboardRLTs
0 Scoreboard Name Scoreboard Setup on=bject
1 def ign

EndOfRuntables
Location of Model Configuration Sweep Case_Setup
Parameter Defining Configurations ign
Results for each Model Configuration in Column or Row Column
EndOfRunTable Object 1 ign
EndOfRunTable Object 2 ign
EndOfRunTable Object 3 ign
EndOfRunTable Object 4 ign
EndOfRunTable Object 5 ign

4)Average heat transfer at CAC - 6.29

Average heat flux to walls - 0.400kW/m^2

Pressure drop across CAC - 7.10E-6 bar