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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Commercial nuclear innovation "new space" age
In early 2006, a start-up company launched a small rocket from a tiny island in the Pacific. It exploded, showering the island with debris. A year later, a second launch attempt sent a rocket to space but failed to make orbit, burning up in the atmosphere. Another year brought a third attempt—and a third failure. The following month, in September 2008, the company used the last of its funds to launch a fourth rocket. It reached orbit, making history as the first privately funded liquid-fueled rocket to do so.
Katsuhiro Sakai
Nuclear Science and Engineering | Volume 123 | Number 1 | May 1996 | Pages 57-67
Technical Paper | doi.org/10.13182/NSE96-A24212
Articles are hosted by Taylor and Francis Online.
A locally exact numerical scheme (LENS) based on the concept of locally exact numerical differencing is presented. The essence of the LENS scheme consists in determining the coefficients of the difference scheme so that the resulting equation interpolating numerical fluxes at the control volume surface satisfies the analytical solution of transport equations with absorption and source terms. The spatial distribution of the coefficients of transport equations is taken into consideration based on a four-region model among three adjacent control volumes, in which continuous conditions for solutions are imposed on the boundary between two adjacent regions. An analysis of nonoscillation properties of the present LENS scheme was performed using the characteristic polynomial analysis method. It was found that the LENS scheme possesses the potential for nonoscillation properties for stationary convection-diffusion equations with absorption. The LENS scheme is examined through numerical experiments and shows stable and accurate solutions for transport equations with absorption and source terms.