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Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Y. A. Chao, N. Tsoulfanidis
Nuclear Science and Engineering | Volume 121 | Number 2 | October 1995 | Pages 202-209
Technical Paper | doi.org/10.13182/NSE95-A28558
Articles are hosted by Taylor and Francis Online.
The conventional transverse integration method of deriving nodal diffusion equations does not satisfactorily apply to hexagonal nodes. The transversely integrated nodal diffusion equation contains nonphysical singular terms, and the features that appear in the nodal equations for rectangular nodes cannot be retained for hexagonal ones. A method is presented that conformally maps a hexagonal node to a rectangular node before the transverse integration is applied so that the resulting nodal equations are formally analogous to the ones for rectangular nodes without the appearance of additional singular terms. Utilizing the invariance of the Laplacian diffusion operator under conformal mappings, it is shown that the diffusion equation for a homogeneous hexagonal node can be transformed to the diffusion equation for an inhomogeneous rectangular node. The inhomogeneity comes in through a smoothly varying mapping scale function, which depends only on the geometry. The steps of conformal mapping from a hexagonal node to a rectangular node are given, and the mapping scale function is derived, evaluated, and applied to nodal equation derivations.