Submitted by Richard Smith on November 12, 2014 - 13:43
Niklas Wendel and Julia Gundert, students at Thomas-Morus-Gymnasium, Daun, Germany, recently completed a project to envisage an airliner of the future with a focus on sustainability and fuel efficiency. Their project was named HELT, translated as a German acronym for 'High Efficiency Aircraft', and is also similar to the German word 'held' which translates to 'hero' in English. During their early concept design phase they used Caedium Professional to perform Computational Fluid Dynamics (CFD) simulations to evaluate the aerodynamic efficiency of various configurations before selecting their final Blended Wing-Body (BWB) design.
Submitted by Richard Smith on October 22, 2014 - 14:55
Computational Fluid Dynamics (CFD) sees broad use in many applications across a diverse range of industries. No more so is this true than in the applications you'll see for CFD in external aerodynamics analysis.
Submitted by Richard Smith on October 14, 2014 - 08:05
You probably know that the Navier-Stokes (NS) equations are named after Claude-Louis Navier and George Gabriel Stokes. Navier come up with the first original derivation based on discrete molecular interactions (discrete approach) and Stokes originated the assumption of a continuum directly using viscosity that is the widely referenced approach still taught today. However, between these two approaches there were other derivations, a continuum of sorts, attributed to other luminaries of 19th Century science.
Submitted by Richard Smith on September 11, 2014 - 07:39
Extremely thin, high-aspect-ratio geometry faces (also known as slivers) can cause problems for meshing and adversely affect Computational Fluid Dynamics (CFD) simulation stability. Learn some strategies to identify and deal with slivers to maximize your CFD productivity.
Sliver SurfaceProduces poor surface mesh elements (blue)
Submitted by Richard Smith on August 28, 2014 - 08:38
Small acute angles in your geometry, such as those found where a tangential surface meets a cylindrical surface, can lead to poor results from your Computational Fluid Dynamics (CFD) simulation. Keep reading to learn how to identify and remedy acute angles.
Small Acute Angled Geometry FeatureProduces poor mesh elements
Submitted by Richard Smith on August 19, 2014 - 10:24
In preparing geometry for a Computational Fluid Dynamics (CFD) simulation you will sometimes find small geometry features (edges and faces) that are irrelevant for your simulation. To resolve a small irrelevant feature would require a large number of small mesh cells that would be a waste of precious computing resources. Keep reading to find out how to detect and remove such features.