Submitted by Richard Smith on October 10, 2011 - 12:17
The movies Innerspace and Fantastic Voyage both featured miniature submarines, piloted by miniaturized humans, roaming around inside a live patient. As the trend continues towards unmanned autonomous vehicles (UAVs) both in the air and in the water it seems the movies had half the story right – that of the miniature vehicle. For example, researchers in Japan have developed a self-propelled endoscope [source: Popular Science] that can swim mermaid-like through our digestive system.
Submitted by Richard Smith on October 3, 2011 - 09:16
I just came across an interesting study [source: Gizmag] on the total efficiency of wind turbine clusters that compared vertical-axis wind turbines with the more popular horizontal-axis wind turbines. The study compared the efficiency of a cluster of wind turbines rather than individual machines. The measure of efficiency was related to the area occupied by the clusters.
Submitted by Richard Smith on September 26, 2011 - 08:02
Is your next car going to be powered by compressed air? Probably not, but there are groups working with compressed air as an energy source for the usual transport suspects, i.e., cars and bikes, and also for energy storage in general. Though the energy density of compressed air is poor relative to fossil fuels, it scores well in terms of efficiency – if, and it’s a big if, you can raise its pressure to store energy and lower its pressure to recover energy at constant temperature (isothermal process) and with no heat transfer to the surroundings (adiabatic process).
Submitted by Richard Smith on September 20, 2011 - 09:27
A recent proposal of a streamlined truck designed using Computational Fluid Dynamics (CFD) holds the promise of reducing drag by 63%, which would translate into huge fuel savings. The relentless rise of oil prices has placed increasing importance on truck fuel and aerodynamic efficiency. However, as best as I can tell from pictures of the streamlined design it looks more like a train. It's not obvious to me how this design would maneuver around sharp corners. There is mention of morphing body work but it's not evident in the models presented.
Submitted by Richard Smith on September 9, 2011 - 09:56
I couldn’t resist writing about a real-world transparent car [source: Jalopnik], especially after already covering real-world cutaway and wireframe models. So you know the score, which is real and which is fake?
Submitted by Richard Smith on August 8, 2011 - 10:18
Not content with air domination through Virgin Airlines and Virgin America, and space domination through Virgin Galactic, Richard Branson has now set his sights on ocean domination with Virgin Oceanic.
Submitted by Richard Smith on July 29, 2011 - 13:24
A recent report "Global Computational Fluid Dynamics Market 2010-2014" caught my attention. This report and a number of similar CFD market reports from Infiniti Research on their TechNavio website bare an uncanny resemblance (based on their titles and summaries) to a series of questions and discussion in the LinkedIn group Computational Fluid Dynamics.
Submitted by Richard Smith on July 25, 2011 - 09:38
The range of applications that can benefit from Computational Fluid Dynamics (CFD) analysis is quite literally breath taking. Take for instance a recent study that used CFD to analyze re-constructive surgery of a virtual nose, which could lead to improved nasal surgery.