Join us October 5-9 at Richard Childress Racing (RCR) in Welcome, North Carolina for our second annual CONVERGE User Conference. This year's conference will offer two full days of presentations (October 6-7), training, and ample networking opportunities. Live music, delicious food, giveaways, and tours will make for a great time! Introductory CONVERGE training is available on October 5th & 7th, followed by advanced training and partner workshops on October 8-9.
We look forward to seeing you at RCR in North Carolina this October!
Richard Childress Racing
236 Industrial Drive
Welcome, North Carolina
Richard Childress Racing
236 Industrial Drive
Welcome, North Carolina
236 Industrial Drive
Welcome, North Carolina
Richard Childress Racing has earned more than 200 victories and 15 championships, including six in the NASCAR Sprint Cup Series with the legendary Dale Earnhardt. RCR was the first organization to win championships in the Sprint Cup Series, NASCAR Nationwide Series and NASCAR Camping World Truck Series. Its 2014 Sprint Cup Series lineup includes two-time NASCAR champion Austin Dillon (No. 3 Dow/Cheerios Chevrolet), 2011 Brickyard 400 champion Paul Menard (No. 27 Menards Chevrolet) and 2008 Daytona 500 champion Ryan Newman (No. 31 Caterpillar/Quicken Loans/WIX Filters Chevrolet). Its Nationwide Series program includes Brian Scott (No. 2 Shore Lodge Chevrolet), 2012 Camping World Truck Series rookie of the year Ty Dillon (No. 3 Bass Pro Shops/WESCO/Yuengling Light Lager Chevrolet), Brendan Gaughan (No. 62 South Point Hotel and Casino Chevrolet) and a multi-driver lineup with the No. 33 Menards Chevrolet team.
Speakers + Agenda
DOWNLOAD & VIEW AGENDA
The 2015 CONVERGE User Conference isn't just about world class training and presentations from industry leaders. We want to show our genuine appreciation for our users and provide a unique and relaxed environment for everyone to network and talk shop. Where will you be at the end of the day? We've got two full nights of North Carolina fun planned.
Everyone is welcome to attend our Murder Mystery Dinner Theater and wine tasting at Childress Vineyards on the close of day one's presentations, Tuesday, October 6th @ 6:30p.m.
Get a feel for North Carolina at Foothills Brewing in the historic town of Winston-Salem. Enjoy live bluegrass music, good eats, and craft brews all night. A shuttle will be available to take everyone to and from their hotel. Wednesday, October 7th @ 6:30p.m.
Introduction to CONVERGE
This one day workshop, which will be held prior to the UGM and the advanced workshops, will provide an introduction to CONVERGE. We will start our discussion with pre-processing tasks such as surface import, surface cleanup, and boundary flagging using an example engine geometry. We will then practice working through the case setup process, including assigning boundary conditions and initial conditions, in CONVERGE Studio. We will close by discussing the mesh manipulation strategies in CONVERGE. In this workshop we will not discuss physical models for processes such as turbulence, spray, and combustion because many of these models will be discussed in the advanced workshops after the UGM. If you plan to attend any of the advanced workshops after the UGM but have not yet taken the CONVERGE introductory training, we highly recommend attending this introductory workshop.
Introduction to CONVERGE
This one day workshop, which will be held parallel to the UGM and prior to the advanced workshops, will provide an introduction to CONVERGE. We will start our discussion with pre-processing tasks such as surface import, surface cleanup, and boundary flagging using an example engine geometry. We will then practice working through the case setup process, including assigning boundary conditions and initial conditions, in CONVERGE Studio. We will close by discussing the mesh manipulation strategies in CONVERGE. In this workshop we will not discuss physical models for processes such as turbulence, spray, and combustion because many of these models will be discussed in the advanced workshops after the UGM. If you plan to attend any of the advanced workshops after the UGM but have not yet taken the CONVERGE introductory training, we highly recommend attending this introductory workshop.
Conjugate Heat Transfer modeling in CONVERGE
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 greatly simplify the process of predicting temperature in solids that are dependent on fluid interfaces, e.g., heads and valves in engines. CONVERGE also has a built-in supercycle feature to account 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. CONVERGE 2.3 has an additional feature for modeling valve/seat contact resistance in engines, which is critical to accurate prediction of valve and head temperatures.
Advanced Surface Preparation Tools in CONVERGE Studio
CONVERGE Studio 2.3 contains powerful new tools for cleaning even exceptionally dirty geometries. This workshop will discuss 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 one of the most-requested features, can fix geometry problems with the click of a button. We will discuss the advantages and limitations of this feature. Finally, the surface wrapper tool can create watertight models by wrapping the existing geometry to create a new surface.
Advanced Post-processing Tools in CONVERGE Studio
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 calculator to calculate the apparent heat release from a pressure signal, and (5) how to use the Engine Work calculator to calculate the work and IMEP from cylinder pressure.
Ensight Advanced Training
In this workshop we will assume that attendees have a basic understanding of EnSight.
EnSight is a powerful post-processing tool. This four-hour workshop will focus on advanced usage of EnSight, mainly pertaining to IC engines. From 8:00-10:00 a.m., we will discuss topics including plane tool clips (with arbitrary orientation); uniformly spaced vector arrows; auxiliary clipping; pathline simulations; offset paths; queries and plotters; importing and plotting *.out files from CONVERGE; volume rendering to plot soot, NOx, etc.; and spray visualization. From 10:10-11:45, we will discuss CONVERGE-customized versions of EnSight, multi-case comparisons, remote server connect, automation using Python (swirl/tumble, moving clip plane, etc.), advanced animations (keyframe), and frame mode. From 11:45-12:00, we will discuss new features and updates in version 10.1 as well as what‚Äôs coming in version 10.2.
Genetic Algorithm Optimization in CONVERGE
This workshop will focus on model optimization in CONVERGE, including Genetic Algorithm (GA) optimization and Design of Experiments (DoE) 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, such as model setup, parameter and range selection, and search space considerations, and advanced applications such as geometry modification.
Engine Aftertreatment Modeling in CONVERGE
This workshop will focus on the application of CONVERGE to urea/SCR engine aftertreatment. We will discuss urea decomposition and hydrolysis to ammonia, and we will describe the setup and physical properties of Urea Water Spray (UWS) 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 (CHT) for 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 development for engine aftertreatment.
New Features in CONVERGE
The Convergent Science development team is constantly improving CONVERGE, both to make its current features more efficient and to add novel capabilities. In this workshop we will discuss spray-, combustion-, turbulence-, and numerics-related enhancements that will yield more accurate or efficient simulations and novel additions that can help you extend the reach of your numerical analyses.
Radiation Modeling in CONVERGE
Radiative energy transfer is important in high temperature simulations that include gases and surfaces that emit, absorb, and scatter radiative energy. This workshop will focus on the theory behind the Discrete Ordinates Finite Volume Method (DO-FVM), the different radiation submodels, and how to model radiative energy transfer in CONVERGE simulations. We will set up example cases that have thermal radiation in flows with and without combustion as well as a case that uses non-thermal ultraviolet radiation.
Advanced Combustion Modeling in CONVERGE
CONVERGE contains a variety of combustion sub-models for three-dimensional combustion modeling in internal combustion (IC) engines. In this workshop, we will discuss five advanced combustion models: the delta PDF combustion model (SAGE), the G-equation combustion model, the Representative Interactive Flamelet (RIF) combustion model, the 3-Zone Extended Coherent Flame Model (ECFM3Z), and the Flamelet Generated Manifold (FGM) combustion model (new in CONVERGE 2.3). Among these models, the G-equation model is suitable for simulating premixed spark ignition processes in gasoline engines, while the RIF and ECFM3Z models are used for simulating diffusion-controlled diesel engines. The SAGE and FGM models are generalized combustion models that can be applied to diffusion controlled diesel engine simulations or premixed gasoline engine simulations. This workshop will focus on the underlying theory of these combustion models, the advantages and disadvantages of each model, and how these models are coupled with the CFD solver in CONVERGE.
Fluid-Structure Interaction Modeling in CONVERGE
Rigid body fluid-structure interaction (FSI) describes how the presence of one or more immersed objects affects the flow field and how the forces from the surrounding fluid influence the dynamics of the object. This workshop 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. It will also cover several examples (a pressure relief valve, a spool valve, and an injector armature) that highlight the current capabilities of 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.
Volume of Fluid Modeling in CONVERGE
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. CONVERGE 2.3 contains two new approaches based on the mass fraction-based VOF - one-way coupling and the Eulerian-Lagrangian Spray Atomization (ELSA) model - for detailed simulation of sprays. 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.
CONVERGE - GT SUITE Coupling
CONVERGE and GT-SUITE can be coupled in a variety of ways. This workshop will demonstrate two coupling options. (1) 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. (2) 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.
Sealing Feature in CONVERGE
CONVERGE's sealing tool 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 cases where gaps between moving boundaries need to be sealed dynamically, including two-stroke engines, Wankel engines, components connected by pins and bearings, pumps, and rotating machinery. In this workshop, we will give an overview of the sealing algorithm and explain the geometric approach used to recreate the sealed, watertight surface from the boundaries and seal definitions. We will then discuss best practices for surface preparation and case setup. Lastly we will demonstrate specific examples of applying seals to a check valve, a two-stroke engine, a Wankel engine, crankcase components, a gerotor pump, and a supercharger.
CONVERGE for General Purpose CFD
CONVERGE has taken the in-cylinder engine CFD simulation world by storm. But the features that make CONVERGE so powerful as an engine simulator-automatic, Cartesian cut-cell meshing and Adaptive Mesh Refinement (AMR) - also provide tremendous benefits for general-use applications. In this workshop, we will focus on some of the general-use applications for which we have recently used CONVERGE to generate captivating and illuminating transient results. We will talk about why automatic, Cartesian cut-cell meshing and AMR are perfect tools for capturing complex flow through small clearances, complex geometry, and moving parts, regardless of the industry or application. We will also talk about how the use of our fluid-structure interaction (FSI) model has enabled us to capture flow concepts that previously have been studied only with steady-state analysis in other CFD codes. Attend this session to discover how CONVERGE can help you save setup time and achieve insightful transient results for your most complex and challenging CFD applications.
Gas Turbine Combustion Modeling in CONVERGE
This workshop will focus on the application of CONVERGE to gas turbine combustion and combustor analysis. We will review how to set up liquid and gaseous fuels for gas turbines and discuss the use of both the detailed chemistry model and the new Flamelet Generated Manifold (FGM) model for gas turbine models. We will discuss several other topics as well: wall temperature predictions with conjugate heat transfer (CHT); transient RANS and LES simulations and steady-state analysis in reacting and non-reacting cases; gas turbine ignition, Lean Blow Out (LBO), and extinction; and emissions analysis for NOx, CO, and soot.
Convergent Science has a room block and discounted rates available at the Holiday Inn Express & Suites. Book your room with group code CSC. Rooms are limited, so please book early.
We'll see you there!