Interaction between a compliant material and an unstable boundary layer flow

Journal Article · Sun May 01 04:00:00 EDT 1988 · J. Comput. Phys.; (United States)

DOI:https://doi.org/10.1016/0021-9991(88)90130-1· OSTI ID:5264324

Hall, M S

The response of a compliant coating to pressure fluctuations due to an unsteady boundary layer flow and the effect of the response on the stability of the flow field are examined. A pseudospectral solution of the Navier--Stokes equations is coupled to a finite element calculation of the behavior of the compliant material. In particular, the effect of material response on the growth rate of a Tollmien--Schlichting type instability in an unstable boundary layer is examined. Results are presented for three materials; a soft polyvinylchloride (PVC), a stiffer PVC, and a two-layer material consisting of a thick layer of soft PVC covered by a thin layer of neoprene. copyright 1988 Academic Press, Inc.

• Research Organization: Lawrence Livermore National Laboratory, University of California, Livermore, California 94550
• OSTI ID: 5264324
• Journal Information: J. Comput. Phys.; (United States), Journal Name: J. Comput. Phys.; (United States) Vol. 76:1; ISSN JCTPA
• Country of Publication: United States
• Language: English

Related Subjects

640410* -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOUNDARY CONDITIONS
BOUNDARY LAYERS
CHLORINATED ALIPHATIC HYDROCARBONS
COATINGS
DIFFERENTIAL EQUATIONS
ELASTOMERS
EQUATIONS
FINITE ELEMENT METHOD
FLEXIBILITY
HALOGENATED ALIPHATIC HYDROCARBONS
LAYERS
MECHANICAL PROPERTIES
NAVIER-STOKES EQUATIONS
NEOPRENE
NUMERICAL SOLUTION
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PARTIAL DIFFERENTIAL EQUATIONS
POLYMERS
POLYVINYLS
PRESSURE EFFECTS
PVC
TENSILE PROPERTIES