Summary
Normal shock wave — turbulent boundary layer phenomena are presented and discussed. Examples of experimental results are set up to provide a convincing material about the interaction field structure and its behaviour under the influence of key parameters. Besides, various theoretical approaches are presented and explained, the historical as well as the modern ones. A comparison of the theoretical results with corresponding experiments illustrates the abilities of applied methods. Finally, the material presented here, describes some of the modifications being introduced to standard passive control in order to improve the effectiveness of ventilation.
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Abbreviations
- c:
-
chord length
- cD :
-
drag coefficient
- cDv :
-
viscous drag coefficient
- cDw :
-
wave drag coefficient
- cf :
-
friction coefficient
- cl :
-
lift coefficient
- cp :
-
pressure coefficient
- c*:
-
critical velocity of sound
- M:
-
Mach number
- Mδ :
-
Pre-shock Mach number
- M *0 (y):
-
critical Mach number profil of the upstream undisturbed boundary layer
- p:
-
static pressure
- Pr:
-
Prandtl number
- R:
-
Radius of wall curvature
- Re:
-
Reynolds number
- u , v:
-
mean flow velocity components
- x , y:
-
Cartesian coordinates
- y0 :
-
thickness of the viscous sublayer
- α:
-
angle of attack
- β:
-
exponent of the velocity profil in the boundary layer
- δ:
-
boundary layer thickness
- δ1 :
-
displacement thickness
- δ2 :
-
momentum thickness
- κ:
-
ratio of constant specific heats
- λ:
-
coefficient of thermal conduction
- λn :
-
eigenvalues
- μ:
-
dynamic viscosity
- ν:
-
kinematic viscosity
- ρ:
-
density
- τw :
-
wall shear stress
- I:
-
Subscripts and Superscripts
- G:
-
undisturbed basic flow
- n , t:
-
normal, tangential
- s:
-
disturbance quantity
- w:
-
wall
- ~:
-
dimensional quantities
- *:
-
critical
- ∞:
-
free stream conditions
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Bohning, R. (1996). Passive Control of Shock/Boundary Layer Interaction. In: Meier, G.E.A., Schnerr, G.H. (eds) Control of Flow Instabilities and Unsteady Flows. International Centre for Mechanical Sciences, vol 369. Springer, Vienna. https://doi.org/10.1007/978-3-7091-2688-2_6
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DOI: https://doi.org/10.1007/978-3-7091-2688-2_6
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