A mixed spectral finite-difference model for neutrally stratified boundary-layer flow over roughness changes and topography

1987 ◽  
Vol 38 (3) ◽  
pp. 273-303 ◽  
Author(s):  
A. C. M. Beljaars ◽  
J. L. Walmsley ◽  
P. A. Taylor
Keyword(s):  
Boundary Layer ◽  
Finite Difference ◽  
Boundary Layer Flow ◽  
Difference Model ◽  
Finite Difference Model ◽  
Layer Flow ◽  
Neutrally Stratified

scholarly journals Stability Analysis of the Laminar Boundary Layer Flow

1970 ◽  
Vol 29 ◽  
pp. 23-34
Author(s):  
Nazma Parveen ◽  
Md MK Chowdhury
Keyword(s):  
Differential Equation ◽  
Boundary Layer ◽  
Stability Analysis ◽  
Finite Difference ◽  
Difference Scheme ◽  
Laminar Boundary Layer ◽  
Boundary Layer Flow ◽  
Finite Difference Scheme ◽  
Linear Set ◽  
Layer Flow

In this paper, stability analysis of incompressible laminar boundary layer flow is presented. For this approach, the partial differential equation is converted to ordinary differential equation by suitable approximation. The implicit finite difference scheme is used to find the point of separations of the boundary layer equations. The finite difference equations for the given flow at each longitudinal position form a linear set with a tridiagonal coefficient matrix. To ensure the correct results, the methods are checked with standard flows like flow past circular cylinder, Howarth’s linear decelerating flows. These methods are demonstrated to compute accurately the separation points of several flows for which comparisons are made with previously published results. Then various series are tested with computer codes. At last, the stability diagram for plane poiseuille flow is shown. Key words: Stability; finite difference scheme; point of separation GANIT J. Bangladesh Math. Soc. (ISSN 1606-3694) 29 (2009) 23-34  DOI: http://dx.doi.org/10.3329/ganit.v29i0.8512

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
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