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 : Rouzbeh Riazi (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
MHD copper-water nanofluid flow and heat transfer through convergent-divergent channel
Mohammadreza Azimi,Rouzbeh Riazi 대한기계학회 2016 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.30 No.10
This work is focused on the analytical solution of a nanofluid consisting of pure water with copper nanoparticle steady flow through convergent-divergent channel. The velocity and temperature distributions are determined by a novel method called Reconstruction of variational iteration method (RVIM). The effects of angle of the channel, Reynolds and Hartmann numbers on the nanofluid flow are then investigated. The influences of solid volume fraction and Eckert number upon the temperature distribution are discussed. Based on the achieved results, Nusselt number enhances with increment of solid volume fraction of nanoparticles, Reynolds and Eckert numbers. Also the fourth order Runge-Kutta method, which is one of the most relevant numerical techniques, is used to investigate the validity and accuracy of RVIM and good agreement is observed between the solutions obtained from RVIM and some known numerical results.
-
An investigation on the supersonic ejectors working with mixture of air and steam
Maziar Shafaee,Mohsen Tavakol,Rouzbeh Riazi,Navid Sharifi 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.11
This study evaluated the performance of an ejector using two streams of fluids as suction flow. Three motive flow pressures were consideredwhen investigating ejector performance; the suction flow pressure was assumed to be constant. The suction flow consisted of amixture of air and steam and the mass fraction of air in this mixture varied from 0 to 1. The ejector performance curves were analyzed fordifferent mass fractions of air. The results indicate that variation of the mass fraction of air in the suction flow mixture had a significanteffect on ejector performance. At all motive flow pressures, the ejector entertainment ratio increased as the mass fraction of air in thesuction flow increased. The results also show that the sensitivity of ejector performance to variation in the mass fraction of air in the suctionflow decreases at higher motive flow pressures. An increase in motive flow pressure caused the transition from supersonic to subsonicflow to occur at higher ejector discharge pressures.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
