Water tank studies of separating flow over rough hills

• Type: Article in International Scientific Journal
• Date: 2008

Authors

J. B. R. Loureiro (Author) FEUP; A. S. Monteiro (Author) FEUP; F. T. Pinho (Author) FEUP; A. P. Silva Freire (Author) FEUP

Journal

Title: Boundary-Layer Meteorology

Vol. 129

Pages: 289-308

ISSN: 0006-8314

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 7 Citations

ISI Web of Science

Scopus - 12 Citations

INSPEC

COMPENDEX

Scientific classification

FOS: Engineering and technology > Mechanical engineering

CORDIS: Technological sciences > Engineering > Mechanical engineering

Other information

Authenticus ID: P-003-V0T

DOI: 10.1007/s10546-008-9314-x

Abstract (EN): The present work investigates the lower boundary condition for flows over a steep, rough hill. Simple asymptotic arguments together with the mixing-length hypothesis are used to derive a local analytical solution that is tested against three different flow conditions. In all, 36 velocity profiles are compared with the proposed expression. The experiments were carried out in a water channel and velocity measurements were made through laser Doppler anemometry. The extent of separated flow was made to vary as a function of the roughness and the Reynolds number. The analysis includes regions of attached as well as separated flow. In particular, the solution of Stratford is studied at the points of separation and re-attachment and found to apply equally well in rough walls

Language: English

Type (Professor's evaluation): Scientific