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Queen’s Landslide Tsunami Flume Dataset – Impulse waves created by dry and saturated granular flows
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Mulligan, Ryan P.; Take, Andy — 2023-05-18 This dataset provides raw wave probe data for a series of experiments conducted in the Queen’s Landslide Flume using dry and saturated granular materials flowing down a thirty-degree slope to generate impulse waves. The parameter space explored in this study covers changes to the slide material type (i.e. to vary mobility of the slide) and the reservoir water depth h (i.e.. to change the wave speed). A total of 21 new experiments were performed in the present study (16 dry granular flow experiments and 5 saturated granular flow experiments).
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Queen’s Landslide Tsunami Flume Dataset - Water Impulse Waves
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Take, Andy; Mulligan, Ryan P.; Bullard, Gemma — 2019-01-07 This dataset provides raw wave probe data for a series of experiments conducted in the Queen’s Landslide Flume using water flowing down a thirty-degree slope to generate impulse waves. A total of 41 tests were completed using four source volumes that increased incrementally from 0.1-0.4 m3 in water depths (relative to z = 0 m at the base of the flume) ranging from 0.15-0.65 m in increments of 0.05 m.
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CHaNGE: Coastal Hydrodynamics and Natural Geologic Evolution
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Mulligan, Ryan P.; Mallinson, David J.; Clunies, Gregory J.; Rey, Alexander; Culver, Stephen J.; Zaremba, Nick; Leorri, Eduardo; Mitra, Siddhartha — 2019-11-25 Pamlico Sound, a large back-barrier estuary in North Carolina, is under threat of climate change due to increased storm activity and sea-level rise. The response of this system is investigated byconsidering what has already happened during changes in sea-level over the late Holocene epoch. The hydrodynamic changes that occurred in response to geomorphic evolution are simulated using a 3D numericalmodel for four distinct ‘time-slice’ scenarios. To accomplish this, the present-day bathymetry was obtained from a high resolution digital elevation model, and paleo-bathymetric grids were developed from sediment cores and seismic observations. Using the same hydrodynamic forcing for each geomorphic scenario, the models are compared to assess the combined response to: different inletsconnecting the back-barrier estuary to the ocean; changes in basin geomorphology due to sedimentation; and sea-level rise. The results indicate that these factors have a considerable effect onhydrodynamics, waves, and salinity in the estuary. The time-averaged tidal ranges were up to three times as high for the past environments in comparison with present day water level elevations, and maximumcurrent velocities were over three times higher in regions close to paleo-inlets. The simulations for each time-slice suggest that the salinity distribution in Pamlico Sound is strongly influenced bythe hydraulic connectivity with other estuaries, and the number and size of tidal inlets through the barrier island system. The results indicate that changes to barrier systems induce strong, non-uniformand complex responses in back-barrier estuaries with regime-shifts in hydrodynamic energy and water mass properties.
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Hurricane Fiona (2022)
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Mulligan, Ryan P.; Swatridge, Laura L. — 2023-08-02 Strong winds over water can cause the water level to rise. This storm surge can flood land, change the shape of beaches, and cause damage to roads and buildings. In this study, we use a computer model to calculate the storm surge during Hurricane Fiona, one of the most intense storms ever to hit eastern Canada. We use the model for different conditions, and determine that part of the storm surge was generated over the ocean, while another part was generated over the gulf. These two parts of the storm surge did not occur at exactly the same time, and were not coincident with high tide. If all three of these components of the total water level peak simultaneously in a future storm, coastal areas could experience even more damage.
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Queen’s Landslide Tsunami Flume Dataset - Runup of landslide-generated waves breaking on steep slopes
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Take, Andy; Mulligan, Ryan P.; Trinaistich, Wolfe — 2021-03-29 This dataset provides observations of runup of breaking and non-breaking impulse waves on steep slopes of 25°, 35° and 45°. Impulse waves were generated in a series of 36 laboratory flume experiments by releasing a range of slide source volumes of highly mobile slide material (water) into a different reservoir depths to vary incipient wave characteristics and assess their impact on observed runup behaviour.
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Wave generation from granular column collapse
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Treflik-Body, Erica; Steel, Elizabeth; Take, Andy; Mulligan, Ryan P. — 2024-05-24 This dataset includes observations from laboratory experiments of granular collapse, including the amplitude and runup of tsunamis that are generated.

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(source : Queen's University Dataverse) AND (auteur : Mulligan, Ryan P.)

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