Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.compfluid.2004.08.005
Title: Spatial direct numerical simulation of transitional boundary layer over compliant surfaces
Authors: Wang, Z. 
Yeo, K.S. 
Khoo, B.C. 
Issue Date: Nov-2005
Citation: Wang, Z., Yeo, K.S., Khoo, B.C. (2005-11). Spatial direct numerical simulation of transitional boundary layer over compliant surfaces. Computers and Fluids 34 (9) : 1062-1095. ScholarBank@NUS Repository. https://doi.org/10.1016/j.compfluid.2004.08.005
Abstract: An iterative implicit fractional step method is developed and employed for the simulation of transitional boundary layer over compliant surfaces. The three-dimensional perturbation Navier-Stokes equations are discretized by curvilinear finite volumes on a collocated grid system. A multigrid procedure is used for computations associated with the pressure-Poisson equation, while simulation is carried out by MPI-based parallel computation with domain decomposition. Results in the literature for oblique linear waves and the non-linear breakdown of a wave triad over a rigid wall are repeated to check the accuracy of the codes that had been developed. Oblique linear TS (Tollmien-Schlichting) waves over finite-length compliant membranes are generally found to coexist with CIFI (compliance induced flow instability) or FISI (flow induced surface instabilities) waves. The latter waves usually possess longer wavelengths and thus propagate at a larger oblique wave angles than the TS waves. Simulation reveals that compliant surfaces may slow down the development of secondary instabilities during the early stages of laminar-turbulent transition. However, during the later stages of fundamental wave breakdown, interactions with CIFI and edge-generated waves may increase the amplitudes of the original 2D and 3D TS waves, leading to an earlier breakdown on compliant surfaces. Linear interaction between the flow and compliant membranes has been assumed. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Computers and Fluids
URI: http://scholarbank.nus.edu.sg/handle/10635/61344
ISSN: 00457930
DOI: 10.1016/j.compfluid.2004.08.005
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

11
checked on Aug 17, 2018

WEB OF SCIENCETM
Citations

8
checked on Aug 8, 2018

Page view(s)

40
checked on Jul 6, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.