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  1. No Access

    Article

    The direct and indirect measurement of boundary stress and drag on individual and complex arrays of elements

    Motivated by the study of drag on plant canopies, a novel non-intrusive drag measurement device was developed—its design, calibration, and validation are presented. The device is based on isolating a region of...

    Rafael O. Tinoco, Edwin A. Cowen in Experiments in Fluids (2013)

  2. Article

    Open Access

    An insitu borescopic quantitative imaging profiler for the measurement of high concentration sediment velocity

    The design, calibration, and testing of a borescopic quantitative imaging profiler (BQuIP) system, suitable for the insitu measurement of two components of the instantaneous velocity in high sediment concentra...

    Edwin A. Cowen, Russell D. Dudley, Qian Liao, Evan A. Variano… in Experiments in Fluids (2010)

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  3. No Access

    Chapter

    Quantitative Imaging of CO2 Transfer at an Unsheared Free Surface

    We present laboratory measurements of simultaneous velocity and concentration fields for the transfer of CO2 across a free surface. The interface is subject to the effects of free shear turbulence generated far b...

    Evan A. Variano, Edwin A. Cowen in Transport at the Air-Sea Interface (2007)

  4. No Access

    Article

    An efficient anti-aliasing spectral continuous window shifting technique for PIV

    A new sub-pixel correlation peak locating algorithm for PIV analysis is introduced. The method is theoretically consistent with the method of continuously shifting interrogation sub-windows by fractional displ...

    Qian Liao, Edwin A. Cowen in Experiments in Fluids (2005)

  5. No Access

    Article

    A random synthetic jet array driven turbulence tank

    We measure the flow above an array of randomly driven, upward-facing synthetic jets used to generate turbulence beneath a free surface. Compared to grid stirred tanks (GSTs), this system offers smaller mean fl...

    Evan A. Variano, Eberhard Bodenschatz, Edwin A. Cowen in Experiments in Fluids (2004)

  6. No Access

    Article

    An Upwelling Event at Onondaga Lake, NY: Characterization, Impact and Recurrence*

    The occurrence, features and impacts on oxygen resources of an upwelling event in culturally eutrophic Onondaga Lake, NY, are documented, and recurrence is investigated, based on data collected as part of long...

    Steven W. Effler, Bruce A. Wagner, Susan M. O'Donnell, David A. Matthews… in Hydrobiologia (2004)

  7. No Access

    Article

    Chemical Plume Tracing

    Edwin A. Cowen, Keith B. Ward in Environmental Fluid Mechanics (2002)

  8. No Access

    Article

    The Information Content of a Scalar Plume – A Plume Tracing Perspective

    The ability of many animals and insects to track a plume to its source is a particularly impressive feat when the fluid dynamics is considered. Inspired by this observation this research seeks to identify the ...

    Qian Liao, Edwin A. Cowen in Environmental Fluid Mechanics (2002)