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	Cycle simulation
	VIPRE™ (Virtual Indicated Performance of Reciprocating Engines)

The Southwest Research Institute (SwRI) Engine Design Section utilizes multiple cycle simulation products including commercially available software as well as internally generated code such as the general purpose product VIPRE™ (Virtual Indicated Performance of Reciprocating Engines).

SwRI engine design engineers and scientists use cycle simulation software to perform characterization studies, provide boundary conditions for finite element analysis (FEA) and computational fluid dynamics (CFD) studies as well as structural dynamics and bearing analyses.

Examples of recent projects include:

• Internal and external EGR systems for spark-ignited and diesel engines

• Performance of a small spark-ignited engine

• Fuel system optimization in a large medium-speed diesel

• Transient response simulation of an off-highway vehicle

• Trade-off studies between emission and performance for diesel and spark-ignition engines

• Valve event determination in heavy-duty diesel engines

• Turbocharger matching

For more information about cycle simulation capabilities at SwRI or how you can contract with SwRI, please contact Mark Tussing at mtussing@swri.org or

(210) 522-2628.

| Design and Development | Engine, Emissions & Vehicle Research Division | SwRI Home |

Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions.

September 19, 2008