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 : Job Kurian (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Three Dimensional Cavities for Supersonic Mixing
Rajarshi Das,Heuydong Kim,Job Kurian 한국추진공학회 2013 한국추진공학회 학술대회논문집 Vol.2013 No.5
Effect of wall mounted three dimensional cavities on the mixing of gaseous injectant based on the entrainment of secondary jet into the primary supersonic flow of Mach number 1.7 is studied. Mixing induced by flow unsteadiness and exchange of fluid between the cavity and main stream flow has been investigated. In order to study the influence of the ratio of cavity length to width (L/W) for constant length to depth ratio (L/D) on the fluid dynamic behaviour, three cavities of L/W ratios between 2 and 4 were used in the study. Acoustic oscillations generated from the cavity were observed to have profound impact on mass exchange between the cavity and the freestream flow. These acoustic oscillations which govern the flow unsteadiness were in turn found to be dependent on the L/W ratio of the cavity. Shift in dominant acoustic mode was observed as the L/W ratio was changed from 3 to 4. Entrainment of secondary injected jet into the primary M=1.7 flow was observed to vary with cavity width quantitatively. The trend in this variation depended on the amplitude of acoustic oscillations generated by the cavities.
-
Shear Layer and Wave Structure Over Partially Spanning Cavities
Rajarshi Das,Heuy Don Kim,Job Kurian 한국가시화정보학회 2013 한국가시화정보학회지 Vol.11 No.2
Study of the wave structure and shear layer in the vicinity of a wall mounted cavity is done by time averaged colour schlieren and time resolved instantaneous shadowgraph technique in an M=1.7 flowfield. Effect of change of cavity width on flow structure is investigated by using constant length to depth (L/D) ratio cavity models with varying length to width (L/W) ratio of 0.83 to 4. The time averaged shock wave structure was observed to change with change in cavity width. Dependence of the shock angle at the leading edge on the shear layer width is also evident from the images obtained. Unsteadiness in the flow field in terms of shear layer dynamics and quasi steady nature of shock waves was evident from the images obtained during instantaneous shadowgraph experiments. Apart from the leading and trailing edge shocks, several other waves and flow features were observed. These flow features and the associated physical phenomena are discussed in details and presented in the paper.
-
Shear Layer and Wave Structure Over Partially Spanning Cavities
Das, Rajarshi,Kim, Heuy Dong,Kurian, Job The Korean Society of Visualization 2013 한국가시화정보학회지 Vol.11 No.2
Study of the wave structure and shear layer in the vicinity of a wall mounted cavity is done by time averaged colour schlieren and time resolved instantaneous shadowgraph technique in an M=1.7 flowfield. Effect of change of cavity width on flow structure is investigated by using constant length to depth (L/D) ratio cavity models with varying length to width (L/W) ratio of 0.83 to 4. The time averaged shock wave structure was observed to change with change in cavity width. Dependence of the shock angle at the leading edge on the shear layer width is also evident from the images obtained. Unsteadiness in the flow field in terms of shear layer dynamics and quasi steady nature of shock waves was evident from the images obtained during instantaneous shadowgraph experiments. Apart from the leading and trailing edge shocks, several other waves and flow features were observed. These flow features and the associated physical phenomena are discussed in details and presented in the paper.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
