Granular media : flow & agitations

Leiden Repository

Granular media : flow & agitations

Type: Doctoral Thesis
Title: Granular media : flow & agitations
Author: Dijksman, Joshua Albert
Publisher: Granular and Disordered Media, Leiden Institute of Physics, Faculty of Science, Leiden University
Issue Date: 2009-12-01
Keywords: Granular media
Index matching
Soft condensed matter
Split bottom
Abstract: This thesis is about weakly driven granular flows and suspensions. Chapter 1 is an overview of the current knowledge of slow granular flows in so-called split-bottom geometries, which in essence consist of a disk rotating at the bottom of a container. In chapter 2 we study dry granular flows in this split-bottom geometry, both in the frictional, slow, rate-independent regime, and in the liquid-like, rate dependent regime which is reached for faster flows. Chapters 3-5 deal with the flow of suspensions in the same geometry. We improve the so-called index matched scanning technique, that allows 3D imaging of the suspensions. Also for the suspension we study both the slow, rate independent and the faster, rate dependent regime. In all cases we combine 2D and 3D imaging of the flow with rheological measurements. Chapter 6 is devoted to the rheology of dry, weakly vibrated granular media. In chapter 7 we revisit a classic experiment on the compaction of granular media.
Description: Promotor: M.L. van Hecke
With summary in Dutch
Faculty: Faculteit der Wiskunde en Natuurwetenschappen
Citation: Dijksman, J.A., 2009, Doctoral thesis, Leiden University
ISBN: 9789090248844
Sponsor: Stichting FOM

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application/pdf Chapter 1 Introduction 755.4Kb View/Open
application/pdf Chapter 2 1.331Mb View/Open
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application/pdf Chapter 7 1.049Mb View/Open
application/pdf Chapter 8 307.9Kb View/Open
application/pdf Bibliography 49.10Kb View/Open
application/pdf Summary in Dutch 25.74Kb View/Open
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application/pdf Publication list_Curriculum vitae_Acknowledgements 27.41Kb View/Open
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