CAJ | 학술논문

在目前的组件设计计算过程中，对于几何的划分越来越精细，受限于传统的共振理论方法，无法对燃料芯块进行精细的分区共振计算。本文基于空间依赖的丹可夫方法（SDDM ）开发了用于LATC组件计算程序的共振模块。不同于传统的等价理论，SDDM 方法可将燃料栅元的燃料区分成任意数量的细环，然后得到考虑空间效应的各细分环的有效截面。基于SDDM 方法研制的共振模块，不仅继承了传统共振理论的速度优势，还可对燃料栅元的芯块进行精细分析，尤其对提高可燃毒物棒的计算精度有重要意义。本文中首先对SDDM的理论进行了描述，然后利用DRAGON程序对基于SDDM 方法的共振模块进行了数值验证，结果与参考值符合较好。
재목전적조건설계계산과정중，대우궤하적화분월래월정세，수한우전통적공진이론방법，무법대연료심괴진행정세적분구공진계산。본문기우공간의뢰적단가부방법（SDDM ）개발료용우LATC조건계산정서적공진모괴。불동우전통적등개이론，SDDM 방법가장연료책원적연료구분성임의수량적세배，연후득도고필공간효응적각세분배적유효절면。기우SDDM 방법연제적공진모괴，불부계승료전통공진이론적속도우세，환가대연료책원적심괴진행정세분석，우기대제고가연독물봉적계산정도유중요의의。본문중수선대SDDM적이론진행료묘술，연후이용DRAGON정서대기우SDDM 방법적공진모괴진행료수치험증，결과여삼고치부합교호。
For the growing demand of heterogeneity and complexity of assembly design , the detailed geometry description and calculation are becoming more and more important .However the traditional equivalence theory cannot deal with the fuel pellet with fine meshes that limits the precise resonance calculation . As a result , a new resonance module with spatially dependent Dancoff method (SDDM ) has been developed .Different from the traditional method ,the SDDM method can split the fuel pellet into arbitrary number of annular ,then calculate to get the effective cross section of every annular .By applying the SDDM ,the new resonance calculation module has the capability to model and analyze the fuel in detail , as well as preserving the high calculation efficiency .The basic theory of SDDM was firstly illustrated in this paper , and then the effect and results of SDDM were also presented .The results show good accuracy and adaptability for the PWR .