JOSHUA—A Nuclear Reactor Design and Analysis Computational System
نویسنده
چکیده
JOSHUA is a computational system developed to perform the extensive engineering and physics calculations needed in the design and analysis of Savannah River Plant (SRP) nuclear reactors. Application of this system significantly enhanced the efficiency, effectiveness, accuracy, and safety of nuclear reactor design and analysis. The unique features of SRP reactors, which necessitated the Site’s development of its own, unique design and analysis capability, are described. Short histories of computer science and reactor physics and engineering, and the state of those sciences when JOSHUA development began in 1968, are presented. The first transistorbased computers, with random-access disk storage and computer terminals, had just become commercially available. SRP had used the technical developments from the Manhattan Project and had developed extensive experimental data describing SRP reactor phenomena. The JOSHUA system, including both the operating system and the applications system, is described. The importance of such a modular, data-based computational system for the multi-step, iterative reactor calculations is explained. The significance of this development is discussed in terms of its impact on SRP reactor design and analysis, its impact on the development of integrated computational system for reactor design and analysis, and its impact on computer science.
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