CONVERGE CFD Software

Event

Training: EU

Additional and Advanced CONVERGE Training

October 5, 2017 3:00 AM – 12:30 PM CEST Linz, Austria - AT
Additional and Advanced CONVERGE Training
Convergent Science - Europe
Hauptstraße 10
Linz, Austria - AT

Advanced Topics in Internal Combustion Engine Modeling – 8:00am-10:00am

In this workshop we will discuss several of the unique features of CONVERGE that yield efficient and accurate simulations of internal combustion (IC) engines. 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.

Ensight – 10:00am-10:30am

EnSight Desktop for CONVERGE is licensed by Convergent Science for all CONVERGE users. This workshop will provide an introduction to how to use EnSight to post-process your CONVERGE data. You will learn about the EnSight workflow as well as the options for reading data, post-processing, animation, plotting, and exporting results.

CONVERGE + GT-SUITE Coupling – 10:30am-11:30am

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.

Introduction to User-Defined Functions – 11:30am-12:00pm

In this workshop we will introduce the topic of user-defined functions (UDFs) for CONVERGE. UDFs can be used to adjust existing models, implement new models, direct CONVERGE to calculate additional quantities, or initialize or reinitialize physical variables. *This lecture does not include hands-on CONVERGE practice.

Introduction to Optimization and Model Interrogation – 12:00pm-12:30pm

This workshop will introduce the concept of model optimization in CONVERGE. We will briefly discuss Genetic Algorithm optimization and Design of Experiments model interrogation. *This lecture does not include hands-on CONVERGE Studio practice.

Tools for SAGE Detailed Chemistry – 1:00pm-2:30pm

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.

Volume of Fluid Modeling – 2:30pm-4:00pm

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.

Advanced Fluid-Structure Interaction Modeling – 4:00pm-5:30pm

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. Lunch will be provided.

Registration is closed.