The heat transfer characteristics of a spiral type EGR cooler for a diesel engine are numerically analyzed to investigate the performance of EGR cooler. The commercial code FLUENT is utilized to simulate a single spiral tube with constant wall temperature conditions. The numerical analysis is performed with the variation of exhaust gas flow rate. The results show that as mass flow rate increases, temperature difference between inlet and outlet and efficiency become lower, while heat flux gets higher. The empirical correlation is derived in forms of Nusslet number and Reynolds number based on the numerical results.

Abstract
 기호설명
 1. 서론
 2. 수치 해석
  2.1 수치해석 모델
  2.2 수치해석 방법 및 경계조건
 3. 수치해석 결과 및 고찰
 4. 결론
 후기
 References

• 김제영(서울과학기술대학교 기계･자동차공학과) | J. Y. Kim
• 박성천(여주대학교 자동차과) | S. C. Park
• 이수룡(서울과학기술대학교 기계･자동차공학과) | S. R. Lee Corresponding Author