거칠기 천이 모델을 이용한 초음속 이중 원추 선두부의 열전달 해석

다국어 초록 (Multilingual Abstract)

Laminar to turbulent boundary layer transitions cause increased drag and heat transfer of a vehicle. One of the main causes of the laminar to turbulent boundary layer transition is the transition due to surface roughness, but it is generally not considered. However, in the case of a hypersonic or re-entry vehicle, The high speed and temperature of vehicle result in inadvertent surface roughness. In addition, surface roughness is intentionally used to avoid separation and instability of the boundary layer. This study presents an hypersonic transition model to analyze the laminar to turbulent boundary layer transition due to surface roughness. Computational results were validated by comparing them with the experiment of a subsonic and hypersonic flat plate. The hypersonic biconic nose tip with surface roughness was analyzed using the verified hypersonic transition model, and the change of the transition point and the increase in heat transfer due to the surface roughness were investigated.

참고문헌 (Reference)

1 Feindt, E.G., "Untersuchungen über die Abhängigkeit des Umschlages laminar-turbulent von der Oberflächenrauhigkeit und der Druckverteilung" Hochschule Carolo-Wilhelmina zu Braunschweig 1957

2 Menter, F.R., "Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications" 32 (32): 1598-1605, 1994

3 Shin, H.C., "Transition flow analysis using hypersonic transition transport models for three-dimensional scramjet intake" Konkuk. Univ 2017

4 Frauholz, S., "Transition Prediction for Scramjet Intakes Using the gamma-Re theta_t Model Coupled to Two Turbulence Models" 31 (31): 1404-1422, 2015

5 Stripf, M., "Surface roughness effects on external heat transfer of a HP turbine vane" 127 (127): 200-208, 2005

6 Saric, W. S., "Stability and Transition of Three-Dimensional Boundary Layers" 35 : 413-440, 2003

7 Durbin, P.A., "Rough wall modification of two-layer k− ε" 123 (123): 16-21, 2001

8 Toro, E.F., "Riemann Solvers and Numerical Methods for Fluid Dynamics : a practical introduction" Springer Science & Business Media 2009

9 Wilcox, D.C., "Reassessment of the scale-determining equation for advanced turbulence models" 26 (26): 1299-1310, 1988

10 Liu, Z., "Predicting distributed roughness induced transition with a four-equation laminar kinetic energy transition model" 99 : 105736-, 2020

11 Langtry, R.B., "Overview of industrial transition modelling in CFX"

12 Krause, M., "Numerical Analysis of Transition Effects for Scramjet Intake Flows" RWTH Aachen 2008

13 Deveikis, W.D., "Local aerodynamic heat transfer and boundary-layer transition on roughened sphere-ellipsoid bodies at Mach number 3.0" National Aeronautics and Space Administration 1961

14 Nikuradse, J., "Laws of flow in rough pipes" National Advisory Comitee for Aeronautics 1933

15 Reshotko, E., "Is Retheta/Me a Meaningful Transition Criterion?" 45 (45): 1441-1443, 2007

16 Schneider, S. P., "Hypersonic Laminar-Turbulent Transition on Circular Cones and Scramjet Forebodies" 40 : 1-50, 2004

17 Hellsten, A., "Extension of the k-omega-SST turbulence model for flows over rough surfaces" 3577-, 1997

18 Corke, T.C., "Experiments on transition enhancement by distributed roughness" 29 (29): 3199-3213, 1986

19 Holden, M., "Experimental studies of surface roughness, entropy swallowing and boundary layer transition effects on the skin friction and heat transfer distribution in high speed flows" 34-, 1982

20 Langtry, R.B., "Correlation-Based Transition Modeling for Unstructured Parallelized Computational Fluid Dynamics Codes" 47 (47): 2894-2906, 2009

21 Hollis, B.R., "Correlation of Recent and Historical Hemispherical Nose Tip Distributed Roughness Transition Data" 56 (56): 664-686, 2019

22 Dryden, H.L., "Combined effects of turbulence and roughness on transition" 9 (9): 249-258, 1958

23 Mee, D.J., "Boundary-layer transition measurements in hypervelocity flows in a shock tunnel" 40 (40): 1542-1548, 2002

24 Schlichting, H., "Boundary layer theory" Springer 2016

25 Mack, L.M., "Boundary Layer Linear Stability Theory, In Special Course on Stability and Transition of Laminar Flow" AGARD 1-81, 1984

26 Bons, J.P., "A review of surface roughness effects in gas turbines" 132 (132): 2010

27 Langel, C.M., "A computational approach to simulating the effects of realistic surface roughness on boundary layer transition" 0234-, 2014

28 Langel, C.M., "A Transport Equation Approach to Modeling the Influence of Surface Roughness on Boundary Layer Transition" Sandia National Laboratories 2017

29 Zhang, X.D., "A Numerical Research on a Compressibility-correlated Langtry's Transition Model for Double Wedge Boundary Layer Flows" 24 (24): 249-257, 2011

30 Dirling, R.B., "A Method for Computing Roughwall Heat-Transfer Rate on Re-Entry Nose Tips" AIAA 1973