A Nuclear Reactor Transient Methodology Based on Discrete Ordinates Method. (3rd December 2014)

• Record Type: Journal Article
• Authors: Zhang, Shun; Zhang, Bin; Zhang, Penghe; Yu, Hui; Chen, Yixue
• Other Names: Clausse Alejandro Academic Editor.
• Is Part Of: Science and technology of nuclear installations. Volume 2014(2014)
• Publication Date: 2014-12-03
• Subjects: Nuclear engineering -- Periodicals; Nuclear facilities -- Periodicals; Nuclear engineering; Nuclear facilities; Electronic journals; Periodicals; 621.48
• DOI: 10.1155/2014/491048
• Languages: English
• ISSNs: 1687-6075

Abstract

Abstract : With the rapid development of nuclear power industry, simulating and analyzing the reactor transient are of great significance for the nuclear safety. The traditional diffusion theory is not suitable for small volume or strong absorption problem. In this paper, we have studied the application of discrete ordinates method in the numerical solution of space-time kinetics equation. The fully implicit time integration was applied and the precursor equations were solved by analytical method. In order to improve efficiency of the transport theory, we also adopted some advanced acceleration methods. Numerical results of the TWIGL benchmark problem presented demonstrate the accuracy and efficiency of this methodology.