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SoftInWay and GTI Develop Design for Revolutionary New Engine
Posted Wed May 29, 2019 @04:04PM
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Announcements SoftInWay, Inc. and GTI announce the concept of a new kind of heat engine with the potential to achieve greater than 65% net electrical or mechanical power-conversion efficiency and provide ultra-low pollutant emissions at a competitive cost.

In this DOE-funded project led by GTI, the partners are working together to further the sustainable use of fossil energy (FE) resources and reduce the risk and cost of advanced technologies.

( Read Full Article )


Visualizing the Inception of Flow Separation
Posted Fri July 31, 2009 @11:57AM
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News Researchers from MIT, San Diego State University, and United Technologies have developed a breakthrough methodology that allows engineers to precisely determine the location and angle of flow separation in both 2D and 3D as well as steady and unsteady flow conditions.

A Desktop Engineering article explains how “Our understanding of flow separation has just taken a big leap forward.”

( Post Comment )


CD-adapco ATOMIC Consortium to Improve Fuel Spray Efficiency
Posted Thu March 19, 2009 @04:50PM
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Announcements CD-adapco, the leading provider of automated flow, thermal and stress simulation to the automotive industry, announces the formation of the ATOMIC project.

The ATOMIC project is focused on developing Computational Fluid Dynamics methods to model the atomization of sprays generated by engine fuel injection systems. The atomization process is critical to the efficiency and emissions of both diesel and gasoline engines.

( Read Full Article )


Researcher Extends Prandtl Boundary Layer Equations to 3D Unsteady Flows
Posted Tue September 30, 2008 @04:47PM
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News An MIT researcher may have solved a 100-year-old engineering problem.

In 1904, Ludwig Prandtl derived the exact mathematical conditions for flow separation to occur. But his work had two major restrictions: first, it applied only to steady flows, such as those around a car moving at a constant low speed. Second, it only applied to idealized two-dimensional flows.

( Read Full Article )


Fluid Dynamics Works on Nanoscale in Real World
Posted Thu April 19, 2007 @09:16AM
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News In 2000, Georgia Tech researchers showed that fluid dynamics theory could be modified to work on the nanoscale, albeit in a vacuum. Now, seven years later they've shown that it can be modified to work in the real world, too – that is, outside of a vacuum. The results appear in the February 9 issue of Physical Review Letters (PRL).

Understanding the motion of fluids is the basis for a tremendous amount of engineering and technology in contemporary life. Planes fly and ships sail because scientists understand the rules of how fluids like water and air behave under varying conditions.

( Read Full Article )


Density Functional Theory Simplifies Multiphase Simulation
Posted Fri July 09, 2004 @10:19AM
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News Traditional Eulerian multiphase simulation suffers from numerical problems at phase interfaces due to the large local density variation (eg. 1000:1 for water/air). The result is numerical instability and the need for a highly refined mesh at the (usually unknown/moving) interface location.

Density functional theory, however, describes the multicomponent multiphase mixture continuously without density jumps at interfacial surfaces. This is achieved by the introduction into the Helmholz energy, or into the entropy, square component density gradient terms. As a result the hydrodynamics of multiphase mixtures is described in a unified way meaning the governing system of equations is the same at any point in space.

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