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RISEffect of Boundary on Water Hammer Wave Attenuation and Shape
Publisher: ASCE
Abstract: The present study develops a refined water hammer model by postulating the presence of a water jet within the reservoir as the water hammer wave is reflected at the pipe inlet. The waterjet leads to a new boundary expression ...
Scour Mechanics of a Tsunami-Like Bore around a Square Structure
Publisher: ASCE
Abstract: This study presents a detailed analysis of the mechanics of scour around a square structure due to an inland-propagating tsunami-like bore using physical modeling. A series of hydraulic bores was simulated using the dam-break ...
Data Assimilation for Streamflow Forecasting: State–Parameter Assimilation versus Output Assimilation
Publisher: American Society of Civil Engineers
Abstract: This paper compares two data assimilation methods: state–parameter assimilation and output assimilation in improving streamflow forecasting using the Soil and Water Assessment Tool (SWAT) model. The state–parameter ...
Development of a Probabilistic Framework for Debris Transport and Hazard Assessment in Tsunami-Like Flow Conditions
Publisher: ASCE
Abstract: In the past, hydraulic and structural design has predominantly relied on deterministic methods, often neglecting the stochastic nature that underlies transient loading processes. Nowadays, probabilistic design methods have ...
Development and Experimental Validation of a Lagrangian Particle-Tracking Model to Simulate Wave-Driven Transport of Coastal Driftwood
Publisher: American Society of Civil Engineers
Abstract: Wood deposits on beaches can contribute to coastal ecosystem function. However, driftwood and debris mobilized by storm waves pose hazards to coastal communities, infrastructure, and valued assets, including sensitive ...
Hydraulic Performance of Low-Crested and Emergent Breakwaters with Ecologically Designed Armor Units
Publisher: American Society of Civil Engineers
Abstract: Eco-friendly armor units and coastal structures provide a sustainable alternative to traditional design by incorporating eco-enhancing aspects into the design process to enhance biodiversity in their vicinity. ECOncrete’s ...
Influence of Debris Jam Formed by Trees on Bridge Pier Scour
Publisher: American Society of Civil Engineers
Abstract: Debris jams contribute to bridge pier failures. Previous investigations showed that a debris jam can constrict the flow cross section, enhance flow intensity, and result in significant scour. Physical modeling was conducted ...
Probabilistic Investigation and Risk Assessment of Debris Transport in Extreme Hydrodynamic Conditions
Publisher: American Society of Civil Engineers
Abstract: Recent extreme hydrodynamic events, such as the 2004 Indian Ocean Tsunami, 2005 Hurricane Katrina, and 2013 Typhoon Haiyan, have indicated the vulnerability of coastal communities. As a result, emphasis has been placed on ...
Multiple Debris Impact Loads in Extreme Hydrodynamic Conditions
Publisher: ASCE
Abstract: Video footage from the 2004 Indian Ocean and 2011 Tohoku tsunamis showed large quantities of debris entrained within the inundating flows. Such extreme debris conditions can lead to a high probability for multiple impacts ...
Experimental Investigation of Loading due to Debris Dams on Structures
Publisher: ASCE
Abstract: The entrainment of debris in tsunami-induced floods and storm surges can result in their accumulation on structures, a phenomenon known as debris damming. Such dams can decrease the stability of the affected structures by ...