Optical methods in the laboratory: An application to density currents over bedforms

J. Ezequie Martin, Tao Sun, Marcelo H. García

Research output: Chapter in Book/Report/Conference proceedingChapter


Experimental results on density currents flowing over bedforms are presented, with the dual objectives of describing our findings for these flows as well as highlighting the strengths and challenges of the optical techniques used. Particle Image and Particle Tracking Velocimetry (PIV; PTV) provide the spatial and temporal resolution to examine the velocity field; Laser Induced Fluorescence (PLIF) does the same for the density field. Simultaneous measurements of these techniques - that resulted in the development of novel measuring and processing methodology - are extensively used to characterize the flow. Evidence regarding the effect of bed morphology on the mixing and entrainment capacity of the flow, is presented for an experiment designed with this objective, corroborating field results that indicate such effect.

Original languageEnglish (US)
Title of host publicationEnvironmental Fluid Mechanics
Subtitle of host publicationMemorial Volume in Honour of Prof. Gerhard H. Jirka
PublisherCRC Press
Number of pages14
ISBN (Electronic)9780203803967
ISBN (Print)9780415670456
StatePublished - Jan 1 2012

ASJC Scopus subject areas

  • General Environmental Science
  • General Engineering


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