At present, the main objective with respect to CFD codes is generally to improve confidence in the available analysis tools and to achieve a more reliable approach to safety relevant issues. With further progress in safety analysis techniques, the increasing use of CFD codes for nuclear applications is expected. There are a number of both commercial (general purpose) CFD codes as well as special codes for nuclear safety applications available. There is therefore increasing interest in the application of three dimensional computational fluid dynamics (CFD) codes as a supplement to or in combination with system codes. However, in the nuclear area there are issues for which traditional treatment using one dimensional system codes is considered inadequate for modelling local flow and heat transfer phenomena. Typically, this type of analysis is performed by means of system computer codes with one dimensional approximation for modelling real plant systems.
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Safety analysis is an important tool for justifying the safety of nuclear power plants. Printed by the IAEA in Austria November 2003 USE OF COMPUTATIONAL FLUID DYNAMICS CODES FOR SAFETY ANALYSIS OF NUCLEAR REACTOR SYSTEMS Safety Assessment Section International Atomic Energy Agency The originating Section of this publication in the IAEA was: Organisation for Economic Co-operation and Development held in Pisa, Italy, 1114 November 2002 International Atomic Energy Agency and the Nuclear Energy Agency of the Of nuclear reactor systems Summary report of a technical meeting jointly organized by the Use of computational fluid dynamics codes for safety analysis