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회전하는 임펠러를 포함한 스크롤 케이싱 내부 유동장의 전산 해석
김재원(J. W. Kim),안은영(E. Y. Ahn),박진원(J. W. Park) 한국전산유체공학회 2004 한국전산유체공학회 학술대회논문집 Vol.2004 No.-
The design procedure for centrifugal blower with high inlet resistance is not presented yet. Overall fluid dynamic performance is estimated for comparison between the case of atmospheric inlet condition and the present model. Detail information between blades is prepared by using a commercial program, SCRYU-Tetra. A centrifugal blower with large inlet pressure is adopted in an air purifier having filtering devices. As the inlet residence increases the flow rate of the system is decreased. In parallel, outlet area of the system affects the performance of the system in the sense of flow balance. Consequently, the flow balance between the inlet and outlet becomes an important parameter for the design of the scroll casing for the centrifugal blower with high inlet pressure.
하이브리드 자동차 구동시스템용 냉각 유로 최적화에 관한 연구
이광희(K.H. Lee),김재원(Jae Won Kim),안은영(E.Y. Ahn) 한국전산유체공학회 2009 한국전산유체공학회지 Vol.14 No.1
The cooling system for electric devices of hybrid vehicles is examined. The present system is composed of coolant paths, inlet diffuser and heat sinks whose shapes are diamond and circular. In this work, inlet duct and fin arrays are combined in proposed models and examined by numerical calculations. Nusselt number and Reynolds number are considered for heat transfer performance. Main focus lies on the looking for optimal model for the cooling system adopted to compact driving module of a hybrid vehicle. The optimal model shows uniform flow patterns in the inlet diffuser and secondary flows after the fins attached to heat source. It is found that the vortical flows around the heat sinks are effective for heat removal mechanism.
강병길(B. G. Kang),박춘명(C. M. Park),안은영(E. Y. Ahn) 한국멀티미디어학회 2010 한국멀티미디어학회 학술발표논문집 Vol.2010 No.1
한국전통건축의 지붕부는 일반적으로 설계가 어려운 기하학적인 곡선 형태를 띄고 있으며, 단순 반복적인 작업으로 인해 시간소모가 많은 것이 특징이다. 본 연구에서는 이를 위해서 상용 건축설계 프로그램에서 지붕부를 자동으로 생성하는 시스템을 개발하여 전통건축의 설계 효율을 높이고자 한다. 상용 설계프로그램에 애드온 형식으로 개발하여 제안된 방식의 결과에 대한 타당성을 입증한다.
김미수,김민경,김희겸,안은영,유하형,이영은,차세희 이화여자대학교 간호학회 2012 이화간호학회지 Vol.- No.46
The main purpose of this research was to create basic data fit for the increasing international students residenting in Korea, based on the health behavior and health condition data collected relative to nationality and term of residence. This research was based on 154 international students residenting in the main capital area. The data was analyzed by SPSS WIN 19.0 using its frequency, percentage, mean, standard deviation, x², ANOVA, Scheffe test as post hot test. The health behavior research results suggests 68.9% of the survey didn’t eat meals on time more than three times a week, the average quality of the meals was 32.53 out of 5 points, 81.2% drank more than once a month, and 22.1% was currently smoking. 66.2% of the survey answered none or irregular exercise, average sleeping time was 6.68 hours. The health condition research results suggest, the self perceived health status as 3.58 out of 5 and 66.9% of them didn’t have any disease. The average BMI was 21.73 and the normal weight was 60.4% which covered the highest percent. The health behavior of drinking(p<0.001), smoking(p=0.004), regular exercise(p=0.012), sleeping time(p=0.001) showed relative difference based on nationality and regular meal time(p=0.003), quality of meal(p=0.001), smoking(p=0.042) showed relative difference based on length of stay. Based on the research results, educational interventions and healthcare programs for European and Asian international students on drinking, smoking, and exercise are necessary and the importance to emphasize healthy meal habits to beginning international students was also highly outlined in this research.