레이놀즈응력 수송방정식 모형에 의한 폴리머 항력감소 난류 채널유동의 예측 Prediction of Polymer Drag-Reduction Turbulent Channel Flow with a Reynolds Stress Transport Equation Model
한국기계기술학회지
(韓國機械技術學會誌)
제20권 제5호
(2018.10)
pp.549-555
pp.549-555
한국기계기술학회
(Korean Society of Mechanical Technology)
초록
An elliptic blending Reynolds stress transport equation model for Newtonian fluids has been extended to predict polymer-induced drag reduction FENE-P fluids. The conformation tensor equation which is related to the polymer stress is adopted from the model form of Resende et al., and the models of redistribution and dissipation rate terms for the Reynolds stress transport equation are considered by the elliptic blending equation. Also, the new model terms for viscoelastic turbulent transport and viscoelastic dissipation in the Reynolds stress transport equation are introduced to consider the polymer additives effect. The prediction results are directly compared to the DNS data to assess the performance of the present model predictions.
키워드
목차
ABSTRACT
1. 서론
2. 지배방정식 및 모형화 과정
3. 결과 및 고찰
4. 결론
References
1. 서론
2. 지배방정식 및 모형화 과정
3. 결과 및 고찰
4. 결론
References
저자