CFD Direct announces the release of their new 1 day Cloud CFD course, the fourth course in their portfolio of OpenFOAM Training. The course enables users to run CFD with OpenFOAM on AWS, training the tools and processes for inexpensive, secure, efficient cloud use. The course addresses the main concerns of using public cloud: cost management, security, efficient CFD and data management. It exploits the cost benefits of cloud: meeting fluctuating demand for hardware at a cost that represents consistent, high utilitisation; and using cheaper, spare capacity, with an application that does not require 100% availability.
Fluid dynamics is concerned with the motion of fluids (liquids and gases) and the forces on them. “Computational” refers to computation of the flow and forces using numerical analysis. We define “computational fluid dynamics” as “the prediction of fluid motion and forces by computation using numerical analysis, generally extended to include heat, thermodynamics, chemistry and solids”. This definition covers a broad range of calculations for numerous scientific and engineering applications, in particular involving heat.
This article provides information on the equation describing conservation of energy relevant to fluid dynamics and computational fluid dynamics (CFD). It first assembles an equation for combined mechanical and thermal energy, i.e. total energy, in terms of material derivatives. It then presents an equation for thermal, or internal, energy. The total energy equation is then provided in terms of local (partial) derivatives, both in terms of internal energy and enthalpy. The implementation of the energy equation in solvers in OpenFOAM is then described.
CFD Direct announces the release of Programming CFD, their new OpenFOAM Training course. The OpenFOAM programming course has been created by Chris Greenshields (OpenFOAM co-founder) and Henry Weller (OpenFOAM creator/architect). The course is 2 days duration and is initially available as Virtual Training in Europe and Americas time zones, with Chris Greenshields as instructor: 12-13 April 2016 – Europe; 19-20 April 2016 – Americas. The course teaches coding to OpenFOAM’s quality standards with tools to encourage good practice, developing code in small, digestible steps with periods of reflection to introduce new concepts.
An earlier article described the OpenFOAM training through which Jenya Collings and I provided almost 500 days of instructor-led, classes to 2,500 particpants. That training mainly described the workings of the OpenFOAM for the early adopters of the software, but we need training whose focus is to enable people to deliver successful CFD solutions. CFD Direct have developed this training over several months, with a modular format that addresses all components of CFD and where the participant learns through experience on a wide range of real-world CFD examples. The training is built on developments to OpenFOAM that make it easier to use, such as template cases, packaged tools, reorganised input and re-coded features.
In 2008, the Directors of CFD Direct began the first significant OpenFOAM Training courses. The training was written for early adopters of OpenFOAM at a time when OpenFOAM was far less functional than today. The courses largely emphasised how OpenFOAM worked and a lot of time was devoted to code customisation. We pioneered a convenient method of providing participants with a running version of OpenFOAM using a persistent live installation that booted Linux from an 8GB USB pendrive. The wider user community benefited from our example cases, e.g. the motorbike case, and code changes made for the courses becoming part of OpenFOAM and our adoption of Ubuntu leading to the release of OpenFOAM packaged for Ubuntu.