Nodal transport methods are proposed for solving the simplified even-parity neutron transport (SEP) equation. These new methods are attributed to the success of existing nodal diffusion methods such as the Polynomial Expansion Nodal and the Analytic Function Expansion Nodal Methods, which are known to be very effective for solving the neutron diffusion equation. Numerical results show that the simplified even-parity transport equation is a valid approximation to the transport equation and that the two nodal methods developed in this study also work for the SEP transport equation, without conflict. Since accuracy of methods is easily increased by adding node unknowns, the proposed methods will be effective for coarse mesh calculation and this will also lead to computation efficiency.

1. 서론
 2. 중성자 수송방정식
  2.1 1계 수송방정식
  2.2 우성 방정식(EP)
  2.3 단순 우성 방정식(SEP)
 3. 단순 우성 수송방정식에 대한 노달법 적용
  3.1 다항식전개 노달법(PEN)
  3.2 해석함수전개 노달법(AFEN)
 4. 수치계산 및 결과
  4.1 단순 우성 방정식(SEP)의 정확도 비교
  4.2 단순 우성 방정식(SEP)에 적용된 노달 수송해비교
 5. 논의
 REFERENCES

• Taewan Noh(홍익대학교) | 노태완 Corresponding Author