John P. Crimaldi

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An interactive turbulent water flow facility and laser-based flow visualization system are used to reinforce fundamental concepts in the instruction of fluid mechanics. For this pilot study, the laboratory instructional module was incorporated into a single topic within the curriculum of a graduate-level fluid mechanics course. The laboratory treatment was(More)
The first step in processing olfactory information, before neural filtering, is the physical capture of odor molecules from the surrounding fluid. Many animals capture odors from turbulent water currents or wind using antennae that bear chemosensory hairs. We used planar laser-induced fluorescence to reveal how lobster olfactory antennules hydrodynamically(More)
Turbulent fluid flows have long been recognized as a superior means of diluting initial concentrations of scalars due to rapid stirring. Conversely, experiments have shown that the structures responsible for this rapid dilution can also aggregate initially distant reactive scalars and thereby greatly enhance reaction rates. Indeed, chaotic flows not only(More)
The structure of momentum and concentration boundary layers developing over a bed of Potamocor-bula amurensis clam mimics was studied. Laser Doppler velocimetry (LDV) and laser-induced fluorescence (LIF) probes were used to quantify velocity and concentration profiles in a laboratory flume containing 3969 model clams. Model clams incorporated passive(More)
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