KOREASCHOLAR

벽면을 통해 유체 유출입을 수반하는 평행 평판유동에서 난류열전달의 예측 Prediction of Turbulent Heat Transfer in Flow Between Parallel Plates with Fluid Transpiration Through Plates

신종근
  • 언어KOR
  • URLhttp://db.koreascholar.com/Article/Detail/141211
한국기계기술학회지 (韓國機械技術學會誌)
제11권 제1호 (2009.03)
pp.1-8
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

The paper reports on the prediction of turbulent heat transfer in flows between parallel plates with wall transpiration. The elliptic blending second moment closure for turbulent stresses and the GGDH model for turbulent heat fluxes are employed to predict the turbulent flow and heat transfer. The numerical results by the adopted models are directly compared to the DNS data and the measurements to assess the performance of the model predictions. The predictions show correctly the effect of deceleration and acceleration of the flow caused by the transpiration, and the anisotropy of the turbulence structure is augmented towards downstream by the fluid injection. The turbulence structure and heat transfer characteristics of transpired flows are well captured by the present turbulence and heat flux models.

목차
Abstract
 1. 서 론
 2. 이론적 해석
  2.1 타원-혼합모형
  2.2 GGDH 모형
  2.3 수치해석 및 경계조건
 3. 결과 및 고찰
  3.1 균일 유출입이 있는 완전발달한 평행 평판유동
  3.2 아래 벽에서 균일유입을 갖고 발달하는 평행평판유동
 4. 결 론
 참 고 문 헌
저자
  • 신종근(한중대학교 공학부 기계자동차공학전공) | J. K. SHIN