The B009 data in the backward facing step experiment

Title

The B009 data in the backward facing step experiment

 Author

Hoan, N.T.

Faculty

Civil Engineering and Geosciences

 Date

2004

 Abstract

This report evaluates the B009 data of the back-ward facing step experiment which was one of a series of the experiments that were designed and conducted by Hofland and Booij (2004) and De Ruijter (2004). In this experiment, the flow field and the pressure field were measured (by PIV and pressure sensors) during the displacement of a single stone from a granular bed. This measurement shows similarities to the results from previous experiments. At the time the stone started to move, two flow structures were found to be responsible for the entrainment: a large-scale sweep (u'>0 and v'>0), causing increased quasi-steady forces, and an embedded small-scale structure with vertical velocity fluctuations, sigma(v'), causing turbulence wall pressure fluctuation (TWP). In the four entrainments, these structures were present simultaneously in the instantaneous flow fields.

 Subject

stone stability
flow

 To reference this document use:

http://resolver.tudelft.nl/uuid:a62c5587-107a-4025-9a9d-5c2130df16eb

 Publisher

TU Delft

 ISSN

0169-6548

 Source

Communications on hydraulic and geotechnical engineering, No. 2004-05

 Part of collection

Institutional Repository

 Document type

report

 Rights

(c) TU Delft
Files
PDF CommHydr0405.pdf 2.28 MB
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