입방체 주위의 기류 해석에 의한 표준 k-ε 모델과 Low-Reynolds Number형 k-ε 모델의 성능 비교A Comparison between Standard k-ε Model and Low-Reynolds Number k-ε Model for the Analysis of Air Flow around Cube
- Other Titles
- A Comparison between Standard k-ε Model and Low-Reynolds Number k-ε Model for the Analysis of Air Flow around Cube
- Authors
- 장현재
- Issue Date
- 2009
- Publisher
- 대한건축학회
- Keywords
- 수치해석; 표준 k-ε 모델; Low-Reynolds number형 k-ε 모델; CFD Simulation; Standard k-ε Model; Low-Reynolds Number k-ε Model
- Citation
- 대한건축학회논문집 계획계, v.25, no.10, pp.255 - 262
- Journal Title
- 대한건축학회논문집 계획계
- Volume
- 25
- Number
- 10
- Start Page
- 255
- End Page
- 262
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/22094
- ISSN
- 1226-9093
- Abstract
- Standard k-ε model was made for fully developed turbulence and has been utilized with wall function for the flow around
wall. However when standard k-ε model, high Reynolds number model, is applied to CFD simulation specially in the air flow
region of separation, reattachment and transition, the accuracy of analysis cannot be assured. For improving the weakness like
these of standard k-ε model, many types of Low-Reynolds number k-ε model have been suggested. In this study, the analysis
accuracy was compared between standard k-ε model, Abe-Nagano-Kondo model which is Low-Reynolds number k-ε model, and
improved Abe-Nagano-Kondo model for the air flow around cube. As a result, improved Abe-Nagano-Kondo model showed the
highest analysis accuracy on separation, reattachment and recirculation among them.
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