The main goal of the validation challenge is to evaluate the performance of OpenFOAM as a numerical simulation tool for addressing industrial problems and identify areas needing additional research and development in OpenFOAM. We invite the whole community to participate in this benchmarking case.  Participants are invited to use different turbulence models, meshes, numerical methods, CFD solvers, etc.

This year the DrivAer validation case is selected for the challenge. To start off, the details of this automotive aerodynamics case are presented by the Chair of Aerodynamics and Fluid Mechanics at the Technical University of Munich, while the OpenFOAM setup for this case can be found at Wolf Dynamics. Clearly, the participants are free to use their own setup and materials.

Objectives:

• To assess the state-of-the-art numerical capabilities in OpenFOAM (such as computational methods, meshing or turbulence modeling), as a practical tool for simulating industry-relevant problems.
• To define best standard practices for turbulence models in OpenFOAM.
• To identify areas needing additional research and development in OpenFOAM.
• To compare OpenFOAM performance against different CFD solvers.
• To provide an impartial forum for evaluating the effectiveness of existing computer codes and modeling techniques using Navier-Stokes solvers.

General Information:

• All participants registered to attend the OpenFOAM workshop are welcome to take part in this validation challenge (no separate fee).
• Participants can use any CFD solver - the validation challenge is not only limited to OpenFOAM.
• Results will be made available after the workshop in a report, and presenters are invited to submit a technical note to the OpenFOAM Journal (more information related to this will be available later).
• The analysis of the validation challenge results will consider both the integral flow quantities (drag coefficient) and local flow characteristics (flow separation and reattachment, recirculation zones, stagnation point, flow anisotropy), with the focus mainly related to  the data reproducibility and transparency.
• To formalize your participation or express your interest, just send an email to the organizing committee: ofw@ait.ac.at