Bottom shear stresses and velocity profiles in stratified tidal planetary boundary layer flow from similarity theory

1998 ◽  
Vol 14 (1-2) ◽  
pp. 167-180 ◽  
Author(s):  
Dag Myrhaug ◽  
Olav H. Slaattelid
Keyword(s):  
Boundary Layer ◽  
Planetary Boundary Layer ◽  
Boundary Layer Flow ◽  
Similarity Theory ◽  
Velocity Profiles ◽  
Shear Stresses ◽  
Layer Flow

scholarly journals A Non-Linear Mixed Spectral Finite-Difference 3-D model for planetary boundary-layer flow over complex terrain

2011 ◽  
Vol 6 (1) ◽  
pp. 75-78 ◽  
Author(s):  
W. Weng ◽  
P. A. Taylor
Keyword(s):  
Boundary Layer ◽  
Finite Difference ◽  
Planetary Boundary Layer ◽  
Boundary Layer Flow ◽  
Complex Terrain ◽  
Surface Boundary ◽  
Surface Boundary Layer ◽  
Non Linear ◽  
Flow Over Topography ◽  
Layer Flow

Abstract. The Non-Linear Mixed Spectral Finite-Difference (NLMSFD) model for surface boundary-layer flow over complex terrain has been extended to planetary boundary-layer flow over topography. Comparisons are made between this new version and the surface layer model. The model is also applied to simulate an Askervein experimental case. The results are discussed and compared with the observed field data.

Coherent structures and dynamics in a neutrally stratified planetary boundary layer flow

1996 ◽  
Vol 8 (10) ◽  
pp. 2626-2639 ◽  
Author(s):  
Ching‐Long Lin ◽  
James C. McWilliams ◽  
Chin‐Hoh Moeng ◽  
Peter P. Sullivan
Keyword(s):  
Boundary Layer ◽  
Planetary Boundary Layer ◽  
Coherent Structures ◽  
Boundary Layer Flow ◽  
Layer Flow ◽  
Neutrally Stratified

The hydrodynamic stability of boundary-layer flow over a class of anisotropic compliant walls

1990 ◽  
Vol 220 ◽  
pp. 125-160 ◽  
Author(s):  
K. S. Yeo
Keyword(s):  
Boundary Layer ◽  
Boundary Layer Flow ◽  
Reynolds Shear Stress ◽  
Flow Stability ◽  
Fibre Axis ◽  
Shear Stresses ◽  
Anisotropic Surface ◽  
Material Stiffness ◽  
Compliant Walls ◽  
Layer Flow

This paper examines the linear stability of zero-pressure-gradient boundary-layer flow over a class of anisotropically responding compliant walls. The anisotropic wall behaviour is derived from a material anisotropy which is characterized by relatively high tensile and compressive strength along a certain direction, termed the fibre axis. When the material stiffness along the fibre axis is sufficiently high, the resulting correlation between the horizontal and the vertical components of wall displacement induces at the flow–wall interface a Reynolds shear stress of a sign that is predetermined by the angle with which the fibre axis makes with the direction of the flow. The notion that anisotropic surface response could be employed to produce turbulent Reynolds shear stresses of predetermined sign at a surface was first explored by Grosskreutz (1971) in an experimental study on turbulent drag reduction. The present paper examines the implications of this interesting idea in the context of two-dimensional flow stability over anisotropic compliant walls. The study covers single- and two-layer compliant walls using the methodology described in Yeo (1988). The effects of wall anisotropy, as determined by the orientation of the fibre axis and the material stiffness along the fibre axis, on flow stability are examined for a variety of walls. The potential of some anisotropic compliant walls for delaying laminar–turbulent transition is investigated, and the contribution of the anisotropy to transition delay is appraised.

The effect of surface roughness on flow structures in a neutrally stratified planetary boundary layer flow

1997 ◽  
Vol 9 (11) ◽  
pp. 3235-3249 ◽  
Author(s):  
Ching-Long Lin ◽  
Chin-Hoh Moeng ◽  
Peter P. Sullivan ◽  
James C. McWilliams
Keyword(s):  
Boundary Layer ◽  
Surface Roughness ◽  
Planetary Boundary Layer ◽  
Boundary Layer Flow ◽  
Flow Structures ◽  
Layer Flow ◽  
Effect Of Surface ◽  
Neutrally Stratified
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