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수치해석을 활용한 ONR Tumblehome의 유효반류비 추정에 관한 연구A Study on the Estimation of the Effective Wake Ratio for ONR Tumblehome by the Numerical Analysis
- Other Titles
- A Study on the Estimation of the Effective Wake Ratio for ONR Tumblehome by the Numerical Analysis
- Issue Date
- 2019
- Publisher
- 대한조선학회
- Keywords
- ONR Tumblehome(ONRT; DTMB 5613); Effective wake ratio(유효반류비); Form factor(형상계수); Self-propulsion performance(자항성능); International Towing Tank Conference(ITTC); Reynolds Averaged Navier-Stokes(RANS); Computational Fluid Dynamics(CFD)
- Citation
- 대한조선학회 논문집, v.56, no.2, pp 109 - 116
- Pages
- 8
- Journal Title
- 대한조선학회 논문집
- Volume
- 56
- Number
- 2
- Start Page
- 109
- End Page
- 116
- ISSN
- 1225-1143
- Abstract
- This paper carried out numerical analysis for estimating the propulsion performance of the model scale ONRT benchmark model of‘Tokyo 2015 a workshop on CFD’. The method reflecting the scale effect of ITTC’78 method and form factor were used to compare the estimates of the effective wake ratio of full-scale. The numerical calculation was performed with Siemens’s Star-CCM+, compared with IIHR model tests and the numerical analysis results of other research institutes, showing good agreement. In the case of an open stern and twin skeg ship, the validity of the ITTC’78 method can be confirmed by assuming that the effective wake ratio estimated from the numerical analysis results of model scale is similar to the effective wake ratio of full-scale.
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