To understand the GUI of GT-SUITE and it's various applications.

Objective: To understand the GUI of GT-SUITE.
1. List down the modules available in GT-SUITE in a brief description.
2. Locate the following settings:

• Time control flag
• Time step and solution control
• Integrator and solver type

3. Explore intercooler tutorial and note down all settings of:

• Run setup.
• Advanced setup.
• Plot setup.
• Output setup.

4.Problem:

• Calculate the total heat transfer at Charge air cooler (CAC)
• Calculate pressure drop across CAC

Given:

• Diameter of cooler inlet and outlet pipe= 50 mm
• Length of the CAC= 1000 mm
• Inlet mass flow rate = 1200 kg/ h at 100 degC
• Outlet pressure 2 bar at 30 deg C

Results:

1. List of Modules available in GT-SUITE:

GT-SUITE supplies a comprehensive set of component libraries that simulate the physics of fluid flow, thermal, mechanical, electrical, magnetic, chemistry, and controls. From those libraries, one can build accurate models of almost any engineering system, including vehicles, engines, drivelines, transmissions, general powertrains, and mechanical systems, hydraulics, lubrication and friction, thermal management, cooling, chemistry, after-treatment and much more.

• COOL3D
• DOE-POST
• GEM3D
• GT-ISE_TOOOLBAR Navigation
• GT-POST
• GT-SpaceClaim
• Integrated Design Optimizer
• VT Design

COOL3D:

COOL3D tool allows for 3D model building and automatic export of underhood cooling module models. This 3D model later will be used for underhood thermal management flow systems that can be discretized.
It provides an ability to build a model in a 3D environment so that full details of the model can be included. COOL3D can be used to build any flow system that contains only blockages, fans, heat additions, and heat exchangers.

DOE-Post:

GT-SUITE includes comprehensive tools for the Design of Experiments (DOE) creation, analysis, and optimization. Users can create a DOE matrix to perform a controlled variation of any model inputs (factors) for the purpose of analyzing and predicting model outputs (responses). Full Factorial and Latin Hypercube DOE types are available, or a custom matrix of experiments can be copied from an external source.

GEM 3D:

GEM3D is a tool that can be used to build 3D models of flow, thermal, and mechanical systems that can be discretized and made into model files for use with GT-SUITE. It provides the ability to build the model in a 3D environment so that the full details of the model can be included. It also includes sophisticated discretization logic that is able to transform the 3D model into a model file that is compatible with the GT-SUITE software. GEM3D can be used to build any system that contains components like pipes, mufflers, manifolds, air boxes, heat exchangers, underhood, cabin, batteries, crankshafts, etc.

GT-ISE (Integrated Simulation environment):

GT-ISE is the main interface where models are built, simulation settings are declared, and simulations (both single and batch) are launched. It is an environment where various components are brought into a project map and connected together linking the entire model as a whole.

GT-POST:

GT-POST is a powerful data analysis tool used to plot, view, and manipulate data generated either by a GT-SUITE simulation or by an external source. It offers a more efficient data analysis solution than standard spreadsheet software. By employing data pointers, the results viewed in GT-POST are updated automatically and immediately when a model is changed and simulation is rerun. Also, GT-POST lends itself nicely to the development of portable, user-defined templates that control how results are presented.

GT-SpaceClaim:

GT-SpaceClaim is a 3D CAD tool included with GT-SUITE. Key applications include:

• Extracting the inner/fluid core (negative) of a solid model
• Importing and converting common CAD formats to GEM3D and COOL3D
• Simplifying geometry to prepare a model for simulation
• Building solid geometry for simulation before production CAD files are available

Integrated Optimization:

This is a built-in optimizer that allows optimization of any combination of model inputs (factors) to maximize, minimize, or target any single or multiple model outputs (responses).
Some of the applications are combustion calibration, muffler design, cranktrain design, vehicle optimization, etc.

VTDesign (Valvetrain Design tool):

VTDESIGN is a stand-alone, interactive cam/valvetrain/spring design tool supplied with GT-SUITE that may be used as a preprocessor to GT-SUITE. VTDESIGN is composed of three main features including the Cam Design feature, the Valvetrain Design feature, and the Spring Design feature.
VTDESIGN is a graphical preprocessing tool for valvetrain and cam design.

2. Locate the following attributes:

All these attributes we will find in RUN SETUP.

• TIME CONTROL

• Time step & Solution control and Integrator/Solver type:

Inside RUN SETUP in the ODEControl tab, we will find these attributes.

3. Explore Intercooler tutorial and note down settings of:

RUN SETUP:

Time Control-
Maximum Simulation Duration(Time) - 0.5 Sec
Minimum Simulation Duration(Time) - Ignore
Automatic shut off when steady-state - ON
Main Driver(Defines periodic Frequency)- Automatic

Initialization-
Initialization state- User_imposed
User_imposed methods- Part Attributes

Flow Control-
Part Name list object identifying circuits belonging to column- Default
Time step and solution control object- Explicite

ODEControl-

ThermalControl-

ConvergenceRLT:
Activate Convergence criteria- ON

ADVANCED SETUP:

General-
Fixed time step size (Overrides flow and mach step)- Ignore
Initial Seed for random number generation- Default
Convergence Exclusive part list- Ignore

Flow-

Mechanics-
Gravitational acceleration vector(m/s2) - Ignore

Restart-
Checked following attributes
Always store data at each case end
Always store data at simulation end
Keep restart files when a case ends normally

Keep VERSION CHANGES as it is.

Paths-
Select Path Specified explicitly below

MiscFiles-
Additional files to send- Ignore
File type- ASCII

PLOT SETUP:

OUTPUT SETUP:

Data storage-

General:

Timestep plot- CHECK
Suppress .brf file- CHECK

GT-POST Setup:

Flow-
Calculate water saturation temperature RLT- LastRLTInterval
Store flow and engine results summery in .out file- NO

ODE_Mech-
Ignore all attributes if this tab.

ScoreboardRLTs-

PROBLEM:

• Diameter of cooler inlet and outlet pipe= 50 mm
• Length of the CAC= 1000 mm
• Inlet mass flow rate = 1200 kg/ h at 100 degC
• Outlet pressure 2 bar at 30 deg C

Above inputs assigned in following ways:
For COOLER:

For INLET:

For OUTLET:

Solutions:

Pressure Drop across Cooler- 1.1007514E-5 bar

Total Heat transfer at Charge Air Cooler- 7.55329 KW

In this way, we have looked for modules involved in GT SUITE and also give a brief description about all modules and its applications. And we have explore all the settings neccesaary to run simulation.
We have succesfully explore the intercooler tutorial and also simulated with newly given geometric parameter and the results we got has been presented above.