http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Nord-Eddine Sad Chemloul (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Effect of baffle number on mixed convection within a ventilated cavity
Mohamed Amine Belmiloud,Nord-Eddine Sad Chemloul 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.11
Transverse mixed convection is studied numerically in a ventilated cavity with uniform heat flux on the bottom wall and the remainingwalls are adiabatic. Our purpose was to see the influence of the baffle number on the variation of average Nusselt number. An air flowinlet in to the cavity through an opening in the lower part of the left vertical wall and another opening in the opposite wall (i.e., the bottompart BB configuration; the top part BT configuration). The number of baffles ranged between 1 and 4. The two-dimensional mathematicalmodel includes a system of four equations with partial derivatives of continuity, momentum, and energy, solved by the finitevolume method. Flow fields are studied by numerical simulations to the air with a Richardson number in the range1£ Ri £10 , for theGrashof number is fixed atGr =104 , aspect ratio of the cavity A = 2 , the height openings w = 0.1 and Prandtl number Pr = 0.71 . Theresults show that the variation of the average Nusselt number and the average temperature depend on the type of configuration (BB orBT), and of the baffle number. The basic nature of the resulting interaction between the forced external air stream and the buoyancydrivenflow by the heat source is explained by the Nusselt number and the patterns of the streamlines and isotherms.
-
Analysis of mixed convection in an inclined lid-driven cavity with a wavy wall
Said Mekroussi,Driss Nehari,Mohamed Bouzit,Nord-Eddine Sad Chemloul 대한기계학회 2013 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.27 No.7
A numerical study is performed to analyze the mixed convection flow and heat transfer in a lid-driven cavity with sinusoidal wavy bottom surface. The cavity vertical walls are insulated while the wavy bottom surface is maintained at a uniform temperature higher than the top lid. A finite volume method is used to solve numerically the non-dimensional governing equations. The tests were carried out for various inclination angles ranging to 0° from 180° and number of undulation varied from 4 to 6, while the Prandtl number was kept constant Pr = 0.71. Three geometrical configurations were used namely four, five and six. The distributions of streamlines and isotherms,and the variations of local and average Nusselt numbers with the inclination angle are presented. The results of this investigation illustrate that the average Nusselt number at the heated surface increases with an increase of the number of undulations as well as the angle of inclination.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
