Submitted by Richard Smith on February 13, 2017 - 16:36
What if you could reduce the drag of a tractor-trailer truck by 23% and therefore reduce fuel consumption by 11%? Further, what if the only modification to the trailer was to apply some decals and hook up an electric power source? According to Plasma Stream Technologies these savings are viable if the plasma flow control they are developing fulfills its promise.
Improve the Pressure Recovery Behind a Trailer using PlasmaGeometry courtesy of Nectar Design
Submitted by Richard Smith on February 2, 2017 - 10:06
MotoGP is the pinnacle of motorcycle racing, just like Formula 1 is to car racing, so it should come as no surprise that aerodynamics is a key element for success. The focus in MotoGP was on drag reduction through streamlined fairings, helmets, and outfits. Then in 2015 Ducati added winglets to their front fairings to produce downforce.
Submitted by Richard Smith on December 1, 2016 - 10:05
Some fluid dynamics is intuitive, e.g., the water flow along a pipe, where what goes in one end comes out the other. However, most applications no matter how simple are anything but intuitive, e.g., the drag of a ball moving through air.
CFD Simulation of Flow Around a SphereHighly sensitive to Reynolds Number
Submitted by Richard Smith on November 23, 2016 - 17:47
Most Computational Fluid Dynamics (CFD) software provides an array of turbulence models. Knowing which model to select is not always an easy decision given trade offs between accuracy and computing requirements.
Turbulent Air Flow Behind a TruckGeometry courtesy of Nectar Design
Submitted by Richard Smith on November 3, 2016 - 10:22
If you followed Formula 1 in 2009 and 2010 you will probably recall the terms double diffuser and F-duct. However, unless you were in the aerodynamics department of an F1 team during that period you will probably only have a sketchy idea of how these devices actually produced the elusive, race-winning, downforce that is key to F1 success.
Submitted by Richard Smith on October 27, 2016 - 15:19
Time for some fluid dynamics news with a Computational Fluid Dynamics (CFD) slant. Check out how CFD was used to make hydraulic capsule pipeline predictions and simulate the flow through fish farming sea cages.