Digital Commons Network^™

Design Of A Wave Overtopping Simulator With Variability In Simulated Flows, N. Van Der Vegt, B. Hofland, J. J. Warmink, V. M. Van Bergeijk, S. J. M. H. Hulscher

5th International Seminar on Dam Protections Against Overtopping

A new experimental setup for conducting large- to full-scale wave overtopping experiments will be constructed at Delft University of Technology. This setup consists of an indoor Wave Overtopping Simulator (iWOS), a landward dike slope, and a transition to the toe. The iWOS, with a height of 3.25 meters, can release volumes of up to 2.67 m³/m of water. A key innovation is its controllable release valve, allowing variability in flow characteristics for the same overtopping volume.

The iWOS is designed based on established relationships between overtopping volume and flow characteristics at the landward crest of a dike. Computational Fluid Dynamics …

Enhancing Understanding Of Breach Processes Using Computational Fluid Dynamics And Laboratory Tests, K. V. Chua, M. Hassan, C. Goff, M. Morris, H. Haddad

5th International Seminar on Dam Protections Against Overtopping

Accurate prediction of dam breach processes is crucial for risk assessment and emergency response planning. Computational Fluid Dynamics (CFD) offers a powerful tool for simulating such complex phenomena. However, the reliability of CFD models hinges on their validation against experimental data. This paper compares numerical simulations by the open-source code, OpenFOAM, to laboratory flume experiments to assess the accuracy of its predictions of dam breach overtopping processes.OpenFOAM is first being used to model the flow characteristics of two key stages of a dam breach experiment that took place in a physical laboratory setup. The two stages are the surface erosion …

Conclusions From The Performance Assessment Of Industry Applicable Internal Erosion Initiated Breach Prediction Models, Mark W. Morris, Jean-Robert Courivaud

5th International Seminar on Dam Protections Against Overtopping

The EDF funded Performance Assessment of Industry Applicable IE Initiated Breach Prediction Models project was initiated with a workshop at HERU in Stillwater in October 2019. In the following 4 years a team of modelers comprising both model developers and industry model users analyzed the performance of 6 different breach modelling codes against a range of different data sets, including hypothetical, field and real dam failure case studies. Each of the data sets reflected a dam or levee failure initiated by internal erosion, and which subsequently developed into an open breach. Modelers were required to simulate breach formation from the …

Can Computational Fluid Dynamics Be The Basis For The Next Generation Of Breach Models?, M. Hassan, K. V. Chua, C. Goff, S. Haeri, M. Morris, R. Coombs

5th International Seminar on Dam Protections Against Overtopping

Dam and embankment failures can have devastating consequences for communities, infrastructure, and the environment. Therefore, accurate modelling of dam and embankment breaches is crucial for effective flood risk assessment and emergency response planning to precisely estimate areas and people that are prone to risk and plan for reducing the damage to properties and the environment. Recently, many advances have been made to improve the accuracy of breach modelling, including the development of physically based one and two dimensional numerical models that takes into account the various processes that take place during the breach of an embankment dam or a flood …

Enhancing Embankment Dam And Levee Resilience Against Overtopping Erosion: The Muscatine Island Levee Project, W. R. Thompson, J. T. Leyh

5th International Seminar on Dam Protections Against Overtopping

HydroTurf® is an advanced revetment solution engineered to protect embankment dams and riverine levees from erosion caused by overtopping events. Its design provides an impermeable geomembrane protected by engineered turf with a high strength cementitious infill, resulting in a fiber reinforced high-strength concrete matrix. The system provides a durable and impermeable barrier against erosive forces.

The Muscatine Island Levee Improvement Project, situated along the Mississippi River in Iowa, exemplifies the application of HydroTurf. This initiative aimed to enhance flood protection for approximately 30,000 acres of commercial, industrial, and residential areas. A critical component was the construction of a hardened controlled …

The Overcome Project: Overall Perspective And Progress, Jean-Robert Courivaud, Mark W. Morris, Maxime Boucher, Laurent Del Gatto, Christophe Picault, Kamal El Kadi Abderrezzak, Rafael Morán Moya, Miguel Angel Toledo

5th International Seminar on Dam Protections Against Overtopping

The OVERCOME project is an applied research project that aims to provide the dam and dike engineering profession with an easy-to-use, physically based numerical tool that represents overtopping erosion and failure of homogeneous embankments made up of coarse-grained, gap-graded soils. This project began in 2018 and is scheduled for completion in 2028, and was initiated by EDF and CNR, who are the two main owners of embankment dams in France. To achieve this objective, the OVERCOME project is based on an extensive program of experimental tests of various dimensions. The interpretation of these tests will be used to define a …

Proceedings Of The 5th International Seminar On Dam Protections Against Overtopping, Protections 2025

5th International Seminar on Dam Protections Against Overtopping

Editors: Sherry Hunt, Bryan Heiner, Tony Wahl, Brian Crookston

Measuring Small Currents At Fast Speeds Using A 2nd Generation Electrometer, Donna Metcalf

Physics Capstone Projects

This project presents the development of a second-generation electrometer designed to measure extremely low currents with improved speed and sensitivity. Based on the foundational architecture developed by Vladimir Zavylov, this iteration focuses on enhancing performance through optimized circuit components, modular configuration, and a custom-designed, battery- powered power supply that enables high-voltage floating measurements. The work encompasses the complete design cycle—creating a full schematic, developing a tailored power delivery system, assembling printed circuit boards (PCBs), constructing wiring harnesses, and integrating components into a protective housing.

Faculty Senate Agenda April 28, 2025, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• 3:00 Call to Order
• Approval of Minutes March 31, 2025
• 3:05 University Business
• 3:20 Faculty Senate Business
• 3:35 Information
• EPC Report - April 3, 2025
• The Office of Equity
• 3:45 Report
• Committee on Committees Annual Report
• Calendar Committee Annual Report
• Retention Annual Report
• Recruitment Annual Report
• 4:10 Old Business
• 4:15 New Business
• New Faculty Senate President-Elect
• Format & Responsibilities - 2025-2026 Faculty Senate Meetings
• Concluding Remarks, Passing of the Gavel
• College Caucus to Elect FSEC Members
• Adjourn: 4:30 pm

The Utah Statesman, April 28, 2025, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Faculty Senate Minutes April 28, 2025, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• Call to Order
• Approval of Minutes - March 31, 2025
• University Business
• Faculty Senate Business
• Information
• EPC Report - April 3, 2025
• The Office of Equity
• Report
• Committee on Committees (CoC) Annual Report
• Calendar Committee Annual Report
• Retention Annual Report
• Recruitment Annual Report
• Old Business
• New Business
• Adjourn - 4:30 pm

Integrating Human-Centered Design Into Undergraduate Stem Capstone Courses: A Food Product Development Case Study, Saadeddine Shehab, Dawn Bohn, Lucas O'Bryan, Luettamae Lawrence, Mike Tissenbaum

Instructional Technology and Learning Sciences Faculty Publications

This study examines the integration of human-centered design (HCD) in a Food Science capstone course and explores its impact on students’ learning outcomes and skill development. This case study investigated how 42 undergraduate students engaged with HCD processes—including understanding, synthesizing, ideating, prototyping, and implementing—to develop innovative food products. Through pre- and post-surveys, interaction analysis, and performance assessments, the findings revealed that HCD activities significantly enhanced students’ knowledge, collaboration, creativity, and metacognitive skills. Additionally, students demonstrated improved food science competencies, such as product formulation and sensory evaluation. This study highlights the benefits of embedding HCD within STEM curricula to foster authentic, …

Data-Driven D Region Model (D3r) Svdd: Software Version Description Document (Svdd), James Vincent Eccles

Space Dynamics Laboratory Publications

This is the Software Version Description Document of the Data-Driven D Region (D3R) model. There are 2 main distributions: (a) D3R designed for containerized deployments (D3Rc) and (b) D3R designed for testing and development. These two distributions are maintained in parallel, and this document describes both. The D3R for containerization is typically provided to customers. The D3R model is a physics-based model for calculating electron density profiles across the D Region ionosphere altitudes (50 km to 95 km) and E Region altitudes (95 km to 120 km) for any given geolocation. The model has two main programs: one to solve …

Young Professionals, Zachary Gibson

Journal Articles

Like many of us, I have attended numerous panels, seminars, and workshops geared toward helping young professionals and students. The more senior professionals are gathered for us to question and tap them for wisdom and anecdotes. One such question that inevitably comes up in one form or another is, “How did you get to where you are?” A thinly veiled question intending to ask how can one get to the same or similar position. The response often begins with a soft chuckle and a “well … ” Their answers are caveated by “my path was not the typical path.”

The Utah Statesman, April 21, 2025, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Utah Women, Discrimination, And Sexism: Experiences And Perceptions, April Townsend, Susan R. Madsen

Marketing and Strategy Faculty Publications

During the fall of 2023, Utah Women & Leadership Project (UWLP) researchers conducted a statewide study to establish a baseline for public perceptions related to the awareness, understanding, and attitudes about challenges that Utah women and girls face. In early 2024, UWLP published 20 research summaries¹ that shared the results of this comprehensive study. Then, in the fall of 2024, the survey was administered again around the state of Utah with slight refinements. Between January and April of 2025, we have shared the results of the 2024 data by releasing six white papers, this being the final report in …

The Utah Statesman, April 14, 2025, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

James Buttle Review: Bed, Banks And Beyond: River Flood Dynamics, Ellen Wohl, Julianne Scamardo, Ryan R. Morrison

Watershed Sciences Faculty Publications

Floods are amplified and attenuated by features and processes across spatial scales, defined here as flood dynamics. We review and synthesise these influences at the catchment, river network and reach scales as a means of integrating understanding of controls on flood dynamics and identifying key questions that arise because of differences in techniques of investigation and disciplinary emphases between spatial scales. Catchment-scale influences include catchment area, topography, lithology, land cover, precipitation, antecedent conditions and human alterations such as changing land cover. Network-scale influences on flood dynamics include network topology, longitudinal variations in the geometry of successive river corridor reaches, lakes …

Faculty Senate Executive Committee Minutes, April 14, 2025, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• Call to Order
• Approval of Minutes - March 17, 2025
• University Business
• Faculty Senate Business
• Information
• EPC Report - April 3, 2025
• Report
• Office of Equity
• Committee on Committees Annual Report
• Calendar Committee Annual Report
• Retention Annual Report
• Recruitment Annual Report
• Old Business
• New Business
• Adjourn 4:26 pm

Faculty Senate Executive Committee Agenda, April 14, 2025, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• 3:00 Call to Order
• Approval of Minutes - March 17, 2025
• 3:05 University Business
• 3:20 Faculty Senate Business
• 3:35 Information
• EPC Report - April 3, 2025
• 3:40 Report
• The Office of Equity
• Committee on Committees Annual Report
• Calendar Committee Annual Report
• Retention Annual Report
• Recruitment Annual Report
• 4:05 Old Business
• 4:10 New Business
• President-Elect Nominations
• Format & Responsibilities - 2025-2026 Faculty Senate Meetings
• Faculty Senate Executive Committee Membership
• Adjourn: 4:30 pm

A Numerical Investigation Of The Performance Of Damaged Concrete Barriers Under Sequential Vehicular Impacts, Ashesh Pokhrel, Andrew D. Sorensen, Mohsen Zaker Esteghamati

Civil and Environmental Engineering Student Research

Concrete median barriers are prone to damage from low-velocity impacts. However, there is a limited understanding of how damage from initial impacts affects barriers’ long-term performance and whether they maintain safe continued service or must be replaced. Therefore, this paper evaluates the performance of the concrete barriers under sequential low-velocity impact using finite-element analysis. Crash test simulations were performed by impacting the concrete barrier twice with an 80,000 lb (36-ton) tractor-trailer at a target impact velocity and angle. The first impact’s velocities varied between 30 mph (48 kmph) and 54 mph (87 kmph) at 10◦ , 15◦ , and 20◦ …

Crop Water Productivity: Within-Field Spatial Variation In Irrigated Alfalfa (Medicago Sativa L.), Keegan Hammond, Ruth Kerry, Ross Spackman, April Hulet, Bryan G. Hopkins, Matt A. Yost, Neil C. Hanson

Plants, Soils, and Climate Faculty Publications

In this study, alfalfa (Medicago sativa L.) is evaluated for suitability of variable rate irrigation (VRI) by analyzing within-field variation in crop water productivity (CWP) under uniform irrigation. The objectives were to (1) measure within-field variation in crop evapotranspiration (ET), (2) quantify spatial variability of alfalfa biomass yield, and (3) assess whether a bivariate analysis of CWP and yield could inform VRI management zones. Research was conducted on a 22.6 ha center-pivot irrigated alfalfa field near Rexburg, Idaho, USA, over three harvest intervals (HIs) in 2021 and 2022. Using a water balance method at 66 field points, ET exhibited …

Evaluating The Effects Of Oxidative Stress On Primary Retinal Pigment Epithelial Cells, Sophia Hessami

Student Research Symposium

Introduction

Age-Related Macular Degeneration (AMD) is the leading cause of vision loss worldwide, affecting 200 million adults over the age of 40

• Affects subretinal layers: retinal pigment epithelium (RPE), Bruch’s membrane, and choroid (Fig. 1)

Problem: Early mechanisms of AMD are not well understood; oxidative stress is often cited as a key contributing factor to the development of AMD.3 Current studies neglect to use primary RPE cells when investigating oxidative stress.

Oxidative Stress occurs when there is an imbalance between reactive oxygen species (ROS) production and cellular antioxidant defenses

• Overabundance of ROS results in damage to tissue and …

The Stem Gender Gap: Can It Be Closed?, Makenna Roberts

Student Research Symposium

Introduction

While many industries have achieved gender parity, women remain underrepresented in STEM fields, with participation stagnating between 32% and 35% from 2011 to 2021. Research suggests this gap is influenced by relative cognitive strengths and social/societal factors. This study analyzes two datasets: (1) SAT score report data from the National College Board and (2) employment data from the 2021 NCSES Survey of Recent College Graduates. Findings highlight disparities at the highest percentiles and lower workforce participation among female STEM graduates.

Data Science For Engineers, Heidi Moulton

Student Research Symposium

30% of USU undergraduate students participate in some sort of research, and for engineering students this often means generating large amounts of data.

Data Science for Engineers is a series of four modules that introduce students to data processing, visualization, and graphing in the Python programming language using Pandas DataFrames and Juypter Notebooks.

The modules are intended for students with a basic understanding of programming in Python, specifically those who have taken CS 1400 Introduction to Computer Science.

Measuring Small Currents At Fast Speeds Using A 2Nd Generation Electrometer, Donna Metcalf

Student Research Symposium

The Electron Emission Test (EET) chamber in the Utah State University Materials Physics Group (MPG) is used to determine the electron yield of highly insulating materials. An electrometer is employed alongside the EET chamber to measure the output current of 10-6 to 10-14 pulses of 10-7 seconds to DC duration. In previous years, a first- generation electrometer was used for these measurements. However, the introduction of a new electrometer presents an opportunity to achieve faster measurement speeds and improved sensitivity to smaller current values.

Establishing Mixed-Biofilm Systems: To Transform Waste Into Value-Added Products, Jessica Silva Cuero

Student Research Symposium

The bioeconomy, which leverages biological agents such as microbes to convert waste (e.g., agricultural waste, wastewater, etc.) into valuable resources (Fig 1.), offers a sustainable solution to global waste challenges while generating new economic opportunities.

Reducing Biochemical Oxygen Demand In Carbon Rich Wastewater Using Rotating Algae Biofilm Reactors, J. Dietrich Storrer, Jared Maughan, Autumn Kirkham, Isaac Smart, Gavin Sherwood

Student Research Symposium

The USU Frulact Project aims to reduce the Biochemical Oxygen Demand (BOD) in wastewater from the Frulact facility in Logan, Utah. By using Rotating Algae Biofilm Reactors (RABRs) combined with activated sludge, the project seeks to break down pollutants and lower BOD levels. This innovative system also explores the potential of algae for bioproducts. Ultimately, the project works toward cleaner water, healthier ecosystems, and sustainable solutions for wastewater treatment.

Terra Sol Retreat: Combining Ancient Building Principles And Modern Technology To Design A Sustainable Desert Resort, Christian Graham

Student Research Symposium

Ancient desert civilizations developed ingenious building techniques to adapt to extreme heat, scarce water, and harsh winds. One of the most effective strategies was the use of thermally massive materials such as adobe, rammed earth, and stone, which absorbed heat during the day and released it at night, creating natural temperature regulation. The Navajo (Diné) hogan, a traditional dwelling of the American Southwest, exemplifies this principle. Hogan walls were often built with packed earth and timber, providing insulation against both the searing daytime heat and the frigid desert nights. Their circular shape also helped distribute heat evenly, while the entrance …

Effect Of Shear Stresses On Microalgae Biofilm Productivity, Tansley Mazurkiewicz, Jacob Watkins

Student Research Symposium

Algae harvested from the Central Valley Water Reclamation Facility was cultivated in nine 27-gallon Rotating Algae Biofilm Reactors (RABRs) to study the effect of shear forces on biofilm productivity. These bench- scale RABRs, with panel entry angles ranging from 0° to 90°, were designed using computational fluid dynamics. Each acrylic panel had dimensions of 0.220x2.5x12 inches with v-shaped grooves (each with an angle of 90°) running the length of each panel. Three depths of v- grooves were tested in triplicate, these depths being 0.055 in, 0.11 in, and 0.165 in. The RABRs were run with a peripheral velocity of 0.1225 …