공학DB
부산대학교 TURBULENCE AND FLOW CONTROL LABORATORY
실험실 소개 이미지
실험실 정보안내
지도교수 황진율
전공분류 난류(Turbulence)
주소 부산광역시 금정구 부산대학로 63번길 2
전화
홈페이지 https://sites.google.com/view/tfclab
실험실소개

Turbulence is a ubiquitous phenomenon in environmental and engineering flows. Turbulent flows enhance the transport and mixing of momentum, heat, or matter and also lead to the large wall-shear stress near solid walls. Consequently, turbulent flows have an essential role in predicting meteorological phenomena and in designing many engineering applications (e.g., submarines, ships, aircraft, pipelines, heat exchangers, etc.). However, understanding turbulent flows is a long-standing challenge due to the complex, chaotic, and multi-scale nature of turbulence. We study coherent structures or eddies that are crucial to understanding the multi-scale phenomena of turbulence, especially for high-Reynolds-number flows.

연구분야

 

1. Coherent structures in high-Reynolds-number wall turbulence

1) Turbulent channel/pipe flow

2) Turbulent boundary layer

3) Adverse and favorable pressure gradient

4) Physical modelling of wall turbulence

5) Vortical structures and skin friction

6) Wall-pressure fluctuations and flow induced noise

7) Turbulent/non-turbulent interface

 

 

 

2. Numerical method

1) Direct numerical simulation

2) Machine learning based simulation

3) Wall-modeled large-eddy simulation

 

 

3. Drag reduction and flow control

1) Passive and active control for skin friction reduction by manipulating coherent structures

2) Superhydrophobic surface

 

 

 

4. Turbulent boundary layer over surface roughness and urban-like surface

1) Surface roughness

2) Urban-like rough surface

연구성과
M. Yoon, J. Hwang, J. Yang and H. J. Sung
Wall-Attached Structures in an Adverse Pressure Gradient Turbulent Boundary Layer
Journal of Fluid Mechanics, 2020 , ,Vol. 0No. 0 ,pp. 0 ~ 0(SCIE, 0:0.0

J. Yang, J. Hwang and H. J. Sung
Influence of Wall-Attached Structures on the Interface of Quiescent Core region in Turbulent Pipe Flow
Physical Review Fluids, 2019 , ,Vol. 0No. 0 ,pp. 0 ~ 0(SCIE, 0:0.0

J. Hwang, J. H. Lee and H. J. Sung
Statistical Behaviour of Self-Similar Structures in Canonical Wall Turbulence
Journal of Fluid Mechanics, 2020 , ,Vol. 0No. 0 ,pp. 0 ~ 0(SCIE, 0:0.0