THE LINEAR STABILITY OF BOUNDARY-LAYER FLOW OVER COMPLIANT WALLS: EFFECTS OF WALL MEAN STATE

This paper examines the linear stability of boundary-layer flow over compliant surfaces or coatings subject to significant flow loading. To take into account the interaction between the initial stress and deformation state of the wall (which is in static equilibrium with the mean flow) and the small perturbation, the classical theory of nonlinear elasticity is used, in which the properties of the compliant wall material are prescribed by a linear isotropic law between the second Piola-Kirchoff stress tensor and the Green strain tensor. Results obtained show that hydrostatic pressure loading can strongly influence the stability of flow over compliant surfaces, and should be taken into account when evaluating the performance of compliant coatings as transition-delaying or noise-reducing devices in underwater applications.

• Supplemental Notes:
  • ISOPE 1992, 2nd Intl Offshore & Polar Engng Conf; 14-19 June 1992; San Francisco, USA. Sponsored by Intl Soc Offshore & Polar Engrs (ISOPE) et al. Procs. Pubs by ISOPE, ISBN 1-880653-03-6. Vol III, p 245 [8 p, 11 ref, 6 fig]
• Authors:
  • Yeo, K S
  • Khoo, B C
  • Chong, W K
• Publication Date: 1992

Language

• English

Subject/Index Terms

• TRT Terms: Boundary layer flow; Linearity; Surfaces; Walls
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00706317
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM