http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오늘 본 자료
조기현,백태실,백이,이정택,Cho, K.H.,Baek, T.S.,Paek, Y.,Lee, J.T. 한국마린엔지니어링학회 2001 한국마린엔지니어링학회지 Vol.25 No.6
This study was carried out to develop an engine for off-road vehicles especially for farm tractors using the liquefied petroleum gas (LPG) which is known as a source of energy having good potential of substitute fuel for diesel engine because of its economical advantage and low pollutant materials after combustion. The study was focused on develop an engine of high in specific power output, low in specific fuel consumption and emission of pollutants. A series of teat was dope on the engine - various laboratory tests to analyze performance of the engine and actual field tests with the engine installed on a farm tractor as a power source.
도덕희(Doh D. H),황태규(Hwang T.G),조용범(Cho Y.B),백태실(Baek T. S),편용범(Pyun Y.B.) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
3D-PTV measurement was conducted on the wake of a sphere. The Reynolds number is 1130 with the diameter(d=30mm). The measurement system consisted of three CCD cameras, an image grabber, an Ar-Ion laser and a host computer. An eigenvalue analysis was introduced for the analysis on the wake. Statistical turbulent properties were quantitatively clarified using the time-consecutive instantaneous three-dimensional vectors obtained by the 3D-PTV system. The spatial distributions of the sphere wake showed strong elations with spiral motions of the vortcies shedded from the surface of the sphere.
표준화상을 이용한 2차원 PIV 와 3차원 PIV 계측 및 성능비교검정
도덕희(Doh D. h),황태규(Hwang T.G),송주석(Song J. S),백태실(Baek.T.S),편용범(Pyun Y.B.) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
Quantitative performance test on the conventional 2D-PLV and the hybrid hygular 3D-PIV(Stereosecpic PIV) was carried out. LES Data sets on an impinging jet which are provided on the webpage(http://www.vsj.or.jp/piv) for the PIV Standard project were used for the generation of vitual images. The generated virtual images were used for the 2D-PIV and 3D-PIV measurements. The measurement results showed that the results obtained by 2D-PIV on average values are clouser to the LES date than those those obtained by 3D-PIV, but turbulent properties obtained by 2D-PIV are largely anderestimated than those obtained by 3D-PIV.
유동-구조상관 (FSI) 3 차원 측정시스템에 의한 부유식 실린더 연동운동해석
도덕희(Doh D. H.),상지웅(Sang J. W.),황태규(Hwang T. G.),편용범(Pyeon Y. B.),백태실(Baek T. S.) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
A simultaneous measurement system that can analyze the flow-structure interactions(FSI) has been constructed and analyses on the flow field .and the motion field of a floating cylinder was made. The three-dimensional vector fields around the cylinder are measured by 3D-PTV technique while the motion of the cylinder forced by the flow field is measured simultaneously with a newly developed motion tracking algorithm(bidirectional tracking algorithm). The cylinder is pendant in the working fluid of a water channel and the surface of the working fluid is farced sinusoidal to make the cylinder bounced. The interaction between the flow fields and the cylinder motion is examined quantitatively.