CFD Direct

The Architects of OpenFOAM

CFD Resources and Articles

Using NCC in OpenFOAM

Using NCC in OpenFOAM

In May 2022, CFD Direct released Non-Conformal Coupling (NCC) in OpenFOAM to connect regions of a domain with independent meshes for applications including rotating geometry. NCC is a robust replacement for the Arbitrary Mesh Interface (AMI) and associated ACMI and Repeat AMI functionalities. This document describes how to use NCC to enable OpenFOAM users to transition from the AMI functionality to NCC. Due to its popularity, AMI remains in OpenFOAM for the next version 10 release in July 2022, but will thereafter be removed. The unreliable ACMI and Repeat AMI functionalities are removed.

CFD Direct Year 7: 2021-2022

CFD Direct Year 7: 2021-2022

In Year 7 of CFD Direct, our developments of OpenFOAM included a generalised load balancer for parallel running . We provided core maintenance, including standardisation of fluid properties, and repaired issues, e.g. to stablise multiphase simulations. We managed the OpenFOAM Foundation, releasing OpenFOAM v9, packaging OpenFOAM-dev and publishing websites and documentation. We produced our book , “Notes on Computational Fluid Dynamics: General Principles”, delivered 56 days of Live Virtual OpenFOAM Training, and provided cloud CFD with CFDDFC® to over 1000 subscribers.

CFD Book for OpenFOAM

CFD Book for OpenFOAM

CFD Direct is delighted to announce its publication of a book Notes on Computational Fluid Dynamics: General Principles. The book is written for people who use CFD in their work, research or study, providing essential knowledge to perform CFD analysis with confidence. It offers a modern perspective on CFD with the finite volume method, as implemented in OpenFOAM and other popular general-purpose CFD software. Fluid dynamics, turbulence (and RAS modelling) and boundary conditions are presented alongside the numerical methods and algorithms in a series of short, digestible notes.

OpenFOAM v9 Training 2022

OpenFOAM v9 Training 2022

In Spring/Summer 2022, CFD Direct is running its OpenFOAM Training courses — Essential CFD, Applied CFD and Programming CFD — fully updated with the latest features of the new version 9 release of OpenFOAM. The training uses new features in OpenFOAM v9 for more productive and effective CFD. All courses are delivered as live virtual training. Essential and Applied CFD courses are available: 7-11 Feb, 14-18 Mar, 9-13 May, 6-10 Jun. Programming CFD is available 25-27 Jan, 22-24 Feb, 29-31 Mar, 23-25 May, 21-23 Jun.

CFDDFC on AWS C6i/M6i

CFDDFC on AWS C6i/M6i

CFD Direct From the Cloud (CFDDFC®) is our established platform for running OpenFOAM, ParaView and supporting software using cloud computing. CFDDFC is now available on AWS C6i and M6i instances of Elastic Cloud Compute (EC2). These instances use the 32-core 2.9 GHz (3.5 GHz with turbo-boost) Intel Xeon Platinum 8375C (Ice Lake) processor. With 2 processors per socket, the largest single instances, c6i.32xlarge and m6i.32xlarge, includes 64 cores. C6i and M6i instances run at up to 50 Gbps of network speed at the largest instance size, which also supports Elastic Fabric Adapter to provide high speed networking across a cluster of instances.

CFDDFC® v9 Released

CFD Direct from the Cloud 9 Remote Desktop

CFD Direct is pleased to announce the release of version 9 of CFD Direct From the Cloud™ (CFDDFC®), available on Amazon Web Services (AWS) Marketplace as the standard CFDDFC product and CFDDFC (Arm). Standard CFDDFC v9 includes OpenFOAM v9, ParaView v5.6.0, OpenMPI v4.1.1 and FreeCAD v0.19.2, running on Ubuntu 20.04 LTS. CFDDFC (Arm) is server-only including OpenFOAM v9 and OpenMPI v4.1.1, running on Ubuntu 20.04 LTS. CFDDFC runs on single instances with up to 48 C5 Intel cores (c5.24xlarge) or 64 C6 Arm-based cores (c6g.16xlarge) and in clusters with with good parallel scaling on clusters of instances up to 1000 cores.