training

Learn from the experts

Space is limited, register today!

Free Introductory and Advanced CONVERGE training will be offered on Monday, Thursday, and Friday–at the conference venue, The Dearborn Inn. Increase your mastery of CONVERGE as you learn directly from our Applications team members, each with years of CFD experience. Complimentary lunch and refreshments will be provided on all three days.

monday

September 25, 2017
8a–5p

Internal Combustion Engine Modeling in CONVERGE

Fairlane
This course is the first day only of the two-day introductory training course Internal Combustion Engine Modeling in CONVERGE. You will learn about the CONVERGE workflow and the options for boundaries, regions, initialization, and grid control. During this course you will have time to practice setting up the boundaries and regions, as well as the initialization and grid control options, for a typical IC engine case in CONVERGE Studio. Note that this course will not include surface preparation or physical models for spray, combustion, turbulence, or other processes.
8a–5p

Basic EnSight 10.2

Rouge River
EnSight Desktop for CONVERGE is licensed by Convergent Science for all CONVERGE customers. In this introductory training course, you will learn how to use EnSight 10.2 to post-process CONVERGE data. You will learn about the EnSight workflow and available features:
  • The methods for reading data
  • Part Creation Basics (Clips, Isosurfaces, Contours)
  • Variable Handling/Coloring (Palettes, Nodal/Elemental Range Handling)
  • Discrete Particle Basics
  • Basic Calculator operations (Creating new field variables)
  • Streamlines/Pathline Basics
  • Query/Plotter Basics (including Part Constant Query)
  • Animation, plotting, and exporting results
This class will focus on datasets from internal combustion engines, but the workflow and techniques are also applicable to gas turbines, pumps, and compressors. Note that this course will not include batch post-processing or Python scripting, both of which will be covered in the Advanced EnSight class. This basic course is intended for those with little or no formal training or experience with EnSight and for those needing a refresher. During class, you will have time for hands-on practice. There will be time at the end of the class for individual assistance, so bring your datasets and questions. Please help us plan this training! If you have specific questions, email them to support@ensight.com (specify “2017 - Basic EnSight 10.2 Training” as the subject of the email).
8a–5p

Advanced Ensight 10.2

Edison A
EnSight Desktop for CONVERGE is licensed by Convergent Science for all CONVERGE customers. In this course, you will learn about the following advanced features and techniques:
  • Multiple Viewports/Displays
  • Multiple Case Comparisons
  • Volume Rendering
  • Discrete Particle Analysis
  • Keyframe Animations
  • Quantitative Analysis using Calculator Operations
  • Saving/Reusing your work
  • Journal/Batch operation introduction
  • Python scripting
This course assumes knowledge of the basic EnSight workflow and the options for reading data, post-processing, animation, plotting, and exporting results. This course is intended for those who have been using EnSight for at least one year or who have taken the Basic EnSight course. In this course, we will use EnSight 10.2 (the latest version). We will discuss changes in EnSight 10.2, including realistic rendering, raytracing, and materials and lighting. During class, you will have time for hands-on practice. There will be time at the end of the class for individual assistance, so bring your datasets and questions. Please help us plan this training! If you have specific questions, email them to support@ensight.com (specify “2017 - Advanced EnSight 10.2 Training” as the subject of the email). Note that some items in this course will use features found only in EnSight Standard for CONVERGE, EnSight Standard, or EnSight HPC (i.e., this course will use features that are not available in EnSight Desktop).
1p–4p

Post-Processing Tools in CONVERGE Studio

Grosse Pointe
CONVERGE Studio is not just for pre-processing! There are several powerful post-processing tools in the Line Plotting module in CONVERGE Studio. This workshop will discuss (1) how to generate and customize plots and create reports, (2) how to combine output files from multiple restarts, (3) how to use the Fast Fourier Transform calculator to transform the signal between the time and frequency domains and to complete engine knock analysis, (4) how to use the Apparent Heat Release Rate calculator to calculate the apparent heat release from a pressure signal, and (5) how to use the Engine Performance calculator to calculate the work and indicated mean effective pressure (IMEP) from cylinder pressure.

*This lecture includes hands-on CONVERGE Studio practice.

thursday

September 28, 2017
8a–12p

Advanced Conjugate Heat Transfer Modeling

Salon III
For several years CONVERGE has been able to interface with other software packages to model heat transfer in solids. Now CONVERGE can do both CFD and solid heat transfer modeling in the same simulation, which can simplify the process of predicting the temperatures in solids that are dependent on fluid interfaces, e.g., heads and valves in engines. This workshop will discuss conjugate heat transfer modeling in CONVERGE, including supercycling, which accounts for the disparate timescales in the solid and fluid domains by allowing the solid side of the simulation to progress with faster timescales than the fluid side of the simulation, and valve/seat contact resistance in engines, which is critical to accurate prediction of valve and head temperatures.

*This lecture includes hands-on CONVERGE Studio practice.
8a–12p

Engine Aftertreatment Modeling

Salon IV
This workshop will focus on Urea/SCR engine aftertreatment modeling in CONVERGE. We will discuss urea decomposition and hydrolysis to ammonia, and we will describe how to set up urea-water spray modeling in CONVERGE. In addition, we will review wall film and wall interaction models, phenomena (filming, rebounding, stripping, and separating) that can lead to urea deposit formation, and the application of conjugate heat transfer modeling to obtain accurate wall thermal boundary conditions. We will discuss SCR surface chemistry approaches that use CONVERGE coupled with GT-SUITE. This workshop will include sample cases for practical Urea/SCR systems as well as validation cases. Finally, we will discuss future plans for improved engine aftertreatment modeling.

*This lecture includes hands-on CONVERGE Studio practice.
8a–10a

Heat Transfer Mapping

Salon V
In this workshop we will discuss mapping CONVERGE CFD results to different surface files for uncoupled heat transfer analysis in third party software. We will discuss the CONVERGE htc_map utility, including the methodology of cycle averaging, details of the mapping method, how the geometry is aligned for surfaces, and best practices for mapping. We will review an example of a heat transfer analysis and explain how to bring the spatial temperature boundary condition prediction back to CONVERGE. Additionally, we will briefly discuss the best practices for heat transfer prediction in CONVERGE CFD simulations.

*This lecture does not include hands-on CONVERGE Studio practice.
10a–12p

Tools for SAGE Detailed Chemistry

Salon V
CONVERGE includes a variety of tools to complement the SAGE detailed chemistry solver. In this workshop we will discuss the zero-dimensional ignition delay, mechanism reduction, one-dimensional laminar flame speed, and mechanism merge tools.

*This lecture includes hands-on CONVERGE Studio practice.
12p–1p

LUNCH WITH RESCALE | CONVERGE in the Cloud

Salon III
Join Rescale for a demonstration of their turnkey cloud HPC platform. Rescale personnel will discuss the benefits of simulation in the cloud, and you will learn how to easily set up and execute CONVERGE simulations with Rescale's on-demand CONVERGE licensing and scalable, pay-as-you-go hardware. Through engineering use cases and benchmark results, Rescale engineers will illustrate how you can use Rescale to efficiently set up, run, and post-process CONVERGE simulations in your web browser and how you can share results without transferring large data sets.
1p–3p

Advanced Spray Modeling

Salon III
CONVERGE includes state-of-the-art models for simulating liquid spray phenomena. In this workshop, we will describe the models in CONVERGE for liquid breakup, collision and coalescence, vaporization, drag, turbulent dispersion, and drop/wall interaction. In particular, we will discuss numerical mesh and parcel number settings for achieving grid convergence for RANS and LES simulations. This workshop will also describe CONVERGE’s VOF-spray one-way coupling option, in which CONVERGE collects detailed fluid flow information near the nozzle exit during a VOF simulation of the injector flow and then uses this information to inject parcels for Lagrangian spray calculations. Finally, in this workshop we will discuss the future of spray modeling in CONVERGE.

*This lecture does not include hands-on CONVERGE Studio practice.
1p–3p

Advanced Sealing

Salon V
CONVERGE contains a sealing tool, which will close gaps between parts that are moving relative to one another. The sealing process is dynamic in that the surface enclosing the computational domain is recreated at each time-step based on the boundary motion and the seal definitions, and thus this tool can be applied to a variety of cases, including two-stroke engines, Wankel engines, components connected by pins and bearings, pumps, and rotating machinery. We will give an overview of the sealing algorithm and explain the geometric approach used to recreate the sealed surface from the boundaries and seal definitions. We will discuss best practices for surface preparation and case setup, and we will demonstrate examples of applying seals to a check valve, a two-stroke engine, a Wankel engine, crankcase components, a gerotor pump, and a supercharger.

*This lecture does not include hands-on CONVERGE Studio practice.
1p–3p

Steady-State Modeling in CONVERGE

Salon IV
CONVERGE v2.4 contains a new steady-state solver, which is much more stable (and, for most cases, faster) than the previous steady-state solvers. The steady-state solver can be used for a host of applications, including flowbench, turbocharger, gas turbine, and aftertreatment simulations. This solver can be used with other CONVERGE features including multiple reference frames and combustion, conjugate heat transfer, and volume of fluid modeling. In this workshop we will discuss the theoretical background of this solver and how to set up a variety of steady-state cases.

*This lecture includes hands-on CONVERGE Studio practice.
3p–5p

CONVERGE + GT-Suite Coupling

Salon V
CONVERGE and GT-SUITE can be coupled in a variety of ways. This workshop will discuss two coupling options. In conventional 1D-3D coupling, CONVERGE performs a 3D simulation while GT-SUITE performs a 1D simulation. The information at the interfaces is exchanged or mapped between the two programs. In hydromechanical coupling, you define a system with rigid bodies in GT-SUITE and subject the rigid bodies to fluid forces and constraints using CONVERGE. CONVERGE calculates the forces on the object and relays this information to GT-SUITE. GT-SUITE then solves the rigid body dynamics equations to update the object's state and sends this information back to CONVERGE. Finally, CONVERGE moves the object.

*This lecture does not include hands-on CONVERGE Studio practice.
3p–5p

Advanced Turbulence Modeling

Salon III
CONVERGE includes a full spectrum of methodologies, from RANS to LES, to model turbulence. In this workshop, we will discuss the theory behind different methodologies and different turbulence models, as well as recommendations for and limitations of each model. In addition, we will discuss the results of some published RANS and LES simulations.

*This lecture does not include hands-on CONVERGE Studio practice.
3p–5p

Advanced Emissions Modeling

Salon IV
CONVERGE contains two detailed soot models – particulate mimic (PM) and particulate size mimic (PSM). Although it is computationally expensive to run a three-dimensional simulation with a detailed soot model and the SAGE detailed chemistry solver, CONVERGE contains acceleration strategies to make it feasible to include detailed soot modeling in engine simulations. In this workshop we will discuss the methodologies of these models, acceleration strategies for detailed soot modeling coupled with gas-phase chemistry, and the effects of important soot parameters. We will also discuss other emissions models (e.g., NOx) and give recommendations for these models.

*This lecture does not include hands-on CONVERGE Studio practice.

friday

September 29, 2017
8a–12p

Advanced Surface Preparation Tools in CONVERGE Studio

Rouge River
CONVERGE Studio contains powerful tools for cleaning even geometries with significant problems. In this workshop we will discuss the advantages and limitations of several of these new features. The Coarsen tool can be used to reduce the number of triangles in a geometry, which may be useful when working with a large geometry. The Boolean tool can perform Boolean operations such as union, intersection, or difference. The Surface Healing tool, which was requested by many clients, can fix a variety of geometry problems at the click of a button. Finally, the Surface Wrapper tool can create watertight models by wrapping the existing geometry to create a new surface.

*This lecture includes hands-on CONVERGE Studio practice.
8a–12p

Advanced Combustion Modeling

Fairlane
CONVERGE contains several options for three-dimensional combustion modeling in internal combustion engines. In this workshop, we will discuss five advanced combustion models: delta PDF (SAGE), G-Equation, Representative Interactive Flamelet (RIF), 3-Zone Extended Coherent Flame Model (ECFM3Z), and Flamelet Generated Manifold (FGM). SAGE and FGM are generalized combustion models that can be applied to diffusion-controlled diesel engine simulations or premixed gasoline engine simulations. G-Equation is suitable for simulating premixed spark ignition processes in gasoline engines, while RIF and ECFM3Z are used for simulating diffusion-controlled diesel engines. This workshop will focus on the underlying theory and the advantages and disadvantages of each combustion model, as well as how these models are coupled with the CFD solver in CONVERGE.

*This lecture does not include hands-on CONVERGE Studio practice.
8a–10a

Fluid-Structure Interaction Modeling

Grosse Pointe
Rigid body fluid-structure interaction (FSI) modeling describes how the presence of one or more immersed objects affect the flow field and how the forces from the surrounding fluid influence the dynamics of the object. In this workshop we will discuss the theory behind FSI, the numerics of the dynamics solver, and the coupling of the dynamics solver to the flow solver in CONVERGE. We will consider several examples (a pressure relief valve, a spool valve, and an injector armature) that highlight the current capabilities of FSI modeling in CONVERGE. Finally, we will discuss complex examples that invoke a user-defined function coupled with FSI to model deforming bodies such as reed valve petals or a spring-close ball valve.

*This lecture does not include hands-on CONVERGE Studio practice.
10a–12p

Optimization and Model Interrogation

Grosse Pointe
This workshop will focus on model optimization in CONVERGE, including Genetic Algorithm (GA) optimization and Design of Experiments model interrogation. We will discuss different types of optimization and the details of the GA methodology, and we will use examples to illustrate how to set up the utility, select parameters, and run an optimization. Finally, we will discuss the best practices of optimization (e.g., model setup, parameter and range selection, and search space considerations) and advanced applications such as geometry modification.

*This lecture does not include hands-on CONVERGE Studio practice.
12p–1p

HPC Post-Processing and Extract-Based Workflows With FieldView

Grosse Pointe
This workshop is for CONVERGE users from all industries who will benefit from efficient ways to analyze large unsteady simulations and want to take full advantage of remote HPC resources, automation, and data management for CFD post-processing.

We will cover methods and techniques applied by industrial FieldView users:
  • Interactive post-processing with data on remote systems
  • Automatic generation of CFD outputs and extracts using batch processing
  • Extract-based post-processing for interactive exploration of unsteady results and increased productivity
This workshop will include live FieldView demonstrations and attendees will be provided with free evaluation software for hands-on exploration following the event.
1p–5p

Advanced Topics in Internal Combustion Engine Modeling

Fairlane
In this workshop we will discuss timely and popular topics in internal combustion (IC) engine modeling and some of the unique features of CONVERGE that yield efficient and accurate simulations. Ever wonder why predicted cylinder quantities do not match the measured data when you think you have set up the case correctly? We will talk about what you need to consider when the predicted cylinder pressures do not agree with measurements and how to assess the accuracy of your input parameters. With optimized cell counts via Adaptive Mesh Refinement and fast flow and detailed chemistry solvers, you can extend your simulation domain to include multiple cylinders to analyze cylinder-to-cylinder variation, run multiple cycles to understand cycle-to-cycle variation, and capture propagating pressure waves to resolve engine knock. We will discuss published cases and how to set up similar cases in CONVERGE.

*This lecture includes hands-on CONVERGE Studio practice.
1p–3p

Volume of Fluid Modeling

Rouge River
Volume of fluid (VOF) methods are some of the most popular numerical techniques for locating moving and deforming interfaces between fluids in multiphase flow simulations. In this workshop we will discuss numerical details, example cases, and some validation calculations for the various VOF options in CONVERGE. One VOF method in CONVERGE is based on the species mass fraction equation and is appropriate for miscible or compressible multiphase flow calculations. One option in CONVERGE, which is based on the mass fraction VOF, is VOF-spray one-way coupling. In this option CONVERGE collects detailed fluid flow information near the nozzle exit during a VOF simulation and then uses this information to inject parcels for Lagrangian spray calculations. Another VOF method, which solves for the void fraction directly, is available in CONVERGE as two separate schemes: Piecewise-Linear Interface Calculation (PLIC) and High-Resolution Interface-Capturing (HRIC). These schemes have been tested on a range of problems including a breaking dam, a rising droplet, and spray injection, and each test case illustrates the ability of the method to track interfaces sharply.

*This lecture includes hands-on CONVERGE Studio practice.
3p–5p

User-Defined Functions

Rouge River
In this workshop we will explore the vast array of user-defined functions (UDFs) that can be used to adjust existing models, implement new models, direct CONVERGE to calculate additional quantities, or initialize or reinitialize physical variables. We will discuss the different types of UDFs that CONVERGE supports as well as the process of compiling the UDFs and the necessary header files.

*This lecture includes hands-on CONVERGE Studio practice.