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Nuclear Science and Engineering
Fusion Science and Technology
Salary growth rate for nuclear engineers among highest
Nuclear engineers have the second-fastest growing salaries among six-figure earners, according to a recent study from AdvisorSmith, a business insurance resource company.
T. S. Haut, P. G. Maginot, V. Z. Tomov, B. S. Southworth, T. A. Brunner, T. S. Bailey
Nuclear Science and Engineering | Volume 193 | Number 7 | July 2019 | Pages 746-759
Technical Paper | dx.doi.org/10.1080/00295639.2018.1562778
Articles are hosted by Taylor and Francis Online.
We propose a graph-based sweep algorithm for solving the steady-state, monoenergetic discrete ordinates on meshes of high-order (HO) curved mesh elements. Our spatial discretization consists of arbitrarily HO discontinuous Galerkin finite elements using upwinding at mesh element faces. To determine mesh element sweep ordering, we define a directed, weighted graph whose vertices correspond to mesh elements and whose edges correspond to mesh element upwind dependencies. This graph is made acyclic by removing select edges in a way that approximately minimizes the sum of removed edge weights. Once the set of removed edges is determined, transport sweeps are performed by lagging the upwind dependency associated with the removed edges. The proposed algorithm is tested on several two-dimensional and three-dimensional meshes composed of HO curved mesh elements.