http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오건제(Keonje Oh),조원봉(Wonbong Cho),배춘근(Chunkeun Bae),이수화(Suhwa Lee),이승배(Seungbae Lee),주필호(Philho Ju),김종철(Jongcheol Kim) 한국유체기계학회 2005 유체기계 연구개발 발표회 논문집 Vol.- No.-
A automobile front-end cooling fan are designed and tested in the present study. The design technique is developed using the one-dimensional inviscid flow through the fan blade, the empirical equations, and the performance prediction models. Numerical calculations of the three-dimensional turbulent flow around the designed cooling fan are carried out. Flow characteristics and pressure distributions on the pressure and suction side of the fan are investigated. Performance test results of the total pressure and flow rate are presented.
마이크로웨이브를 이용한 음식물 슬러지의 건조 특성에 관한 연구
이해수(Hae Soo Lee),오건제(KeonJe Oh),구자도(Ja Do Gu),이지수(Ji Soo Lee) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.5
Following to the London Dumping Convention which banned ocean dumping since 2013, the motivation of this research is to exploit the food sludge as resources. For this purpose the features of drying food sludge by dielectric heating were examined through the experiment as well as the numerical analysis. The experiment was performed in a 600 W home microwave. The container wear made of Styrofoam, ceramic, and glass beaker. Five containers were heated for 10 minutes with 2-minute time steps, and then the weight of each containers was measured. The numerical analysis was done assuming that the properties of food sludge are identical with those of water. The heat conduction equation was established to calculate the three dimensional unsteady heat conduction which is heated in a fixed rate. This heat conduction equation was solved using the finite difference method with the basis of the central difference method.
배춘근(Chunkeun Bae),오건제(Keonje Oh),조원봉(Wonbong Cho),주필호(Philho Ju),김종철(Jongcheol Kim) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
Flow analysis of automobile front-end cooling fan are numerically investigated. The Navier-Stokes equations and the continuity equation are solved in the flow domain. The Reynolds stresses are modelled using the k-ε turbulence model. Flow and pressure characteristics around the fan are investigated. The pressure sharply increases through the fan. Pressure variations on the pressure and suction sides of the fan are well represented in the calculations. The flow streamlines in the blade passage are nearly parallel to the blade.
수평 원관 내 실린더 주위의 선회유동에 관한 수치해석적 연구
이해수(Hae Soo Lee),장태현(Tae-Hyun Chang),오건제(KeonJe Oh) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
This study examines the flow occurred when a cylindrical tube is set up in swirling flow in a horizontal tube. The working fluid used for numerical analysis is water at 30℃, and in a test tube of 90mm diameter the evaluation was performed at Reynolds number of 10,000, 15,000, 20,000, and 25,000. Unstructured grid, which is the combination of tetrahedron and hexagonal grids, was utilized for this numerical study. Turbulent model applied in this study is k-ε 2 equation model, while standard wall functions were employed to the area adjacent to walls. Recirculation zone, which is arisen owing to the inflow of fluid along a tangential line, is verified.