Bulletin of the American Physical Society
75th Annual Meeting of the Division of Fluid Dynamics
Volume 67, Number 19
Sunday–Tuesday, November 20–22, 2022; Indiana Convention Center, Indianapolis, Indiana.
Session Z27: Fluid Dynamics Education II |
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Chair: James Buchholz, University of Iowa Room: 235 |
Tuesday, November 22, 2022 12:50PM - 1:03PM |
Z27.00001: Learning and Engaging Through Open Lab Projects in Fluid Courses Lab Courses Sean P Brophy, Jun Chen, Aditya Anilkumar, Pavlos vlachos, Sally Bane, Fadhla B Junus, Pratith N Shenai Continuously increasing student enrollment in engineering programs presents a significant challenge to the instructional resources in fluid mechanics courses without sacrificing the quality of the delivered education. At Purdue University the School of Aeronautics and Astronautics Engineering (AAE) and the School of Mechanical Engineering (ME) adjusted their fluid dynamics curriculum. A newly adopted component allows the students to perform self-driven open lab projects. The practice from ME and AAE is reviewed, supported by the data collected from hundreds of students in recent semesters. A qualitative study is presented to understand the benefits of this change. Results indicate a positive impact on engaging students effectively in the process of self-guided inquiry to project they propose. The lessons learned in this process are reviewed for ongoing improvements. |
Tuesday, November 22, 2022 1:03PM - 1:16PM |
Z27.00002: Factors Influencing Student Interest in a Curriculum on Naval Science & Technology at a Midwestern University James H Buchholz, Jae-Eun Russell, Shaoping Xiao, Casey Harwood, Venanzio Cichella, Juan E Martin A strong demand exists for quality educational STEM programs to support a strong future naval workforce. To promote naval STEM education in the Midwestern United States, we launched an undergraduate certificate program in "Naval Science & Technology" in 2019. Students can earn the certificate by selecting elective courses, in the baccalaureate degree, focused on topics broadly related to naval hydrodynamics and autonomous systems. Whereas the program’s geographical location makes the curriculum accessible to students who may not otherwise pursue this course of study, the non-traditional nature of the curriculum presents potential challenges due to midwestern students’ interests and career aspirations. Students in the Mechanical Engineering undergraduate program at the University of Iowa, as well as those specifically registered in the Naval S&T certificate or constituent courses were surveyed and interviewed in order to understand their initial interest in naval S&T challenges, careers in support of the Navy, and the certificate program, as well as the impact of cultural and program elements on these interests and career choices. For students with interests in other fields, we sought to understand how the program supported those aspirations. |
Tuesday, November 22, 2022 1:16PM - 1:29PM |
Z27.00003: smartPIV – a smartphone app for flow visualization in lab courses Christian Cierpka, Henning Otto, Constanze Poll, Sebastian Jeschke, Jonas Hüther, Patrick Mäder Fluid mechanics and laser optical diagnostics are often seen as complex and difficult by students. |
Tuesday, November 22, 2022 1:29PM - 1:42PM |
Z27.00004: Teaching Compressible and Incompressible Fluid Dynamics and Thermodynamics from a Bottle Rocket Experiment Jacob Cox, Russell Daines, Bryan Lewis, Justin Clarke, Scott Fairwell, Brad Ashcraft, Daniel Johnstun A water bottle rocket test stand, coupled with a numerical model, can provide unique insights into fluid mechanics and thermodynamics. The bottle rocket test stand is designed to secure the bottle in a vertical position. A load sensor measures the net thrust force as a function of time. The net thrust force is the dynamic weight of the bottle rocket subtracted from the thrust. A pressure transducer feeds through the rocket nozzle to measure the bottle pressure as a function of time. |
Tuesday, November 22, 2022 1:42PM - 1:55PM |
Z27.00005: Curious Bubbles: collecting research data on bubble blowing from the public David J Fairhurst, John Gynn, Anniina Salonen, Emmanuelle Rio, Chris A Hamlett Although street artists can blow soap bubbles over one meter in length, bubble width is determined by the size of the wand used. These bubbles detach from an elongated soap cylinder created in a high air speed “jetting” regime and have diameters double that of the wand. In recent work we demonstrated that much larger bubbles, relative to the wand size, can be blown using slower air speeds. In this “dripping” regime, each bubble is inflated more slowly before detaching from the wand. In laboratory measurements our bubble sizes were well described by a simple predictive law with the largest bubbles blown at the slowest speeds. To see whether these idealised findings translate to the real world, we designed an outreach activity to record bubble-blowing data from the public. We ran the experiment on several occasions through the Curious Rebels outreach initiative, and noticed that unlike in the controlled experiments, nearly all volunteers naturally varied the speed at which they were blowing, reacting in real time to the growth of the bubble. We collected data on the variable air speed and bubble size, again showing good agreement with the simple model. The experiment also provided an excellent opportunity to discuss the surprisingly complex science of soap bubbles with the public. |
Tuesday, November 22, 2022 1:55PM - 2:08PM |
Z27.00006: Using an AeroPress Coffee Brewer to Teach Fluid Mechanics Kristen Fawole, Jason R White, Tonya L Kuhl, William Ristenpart Fluid mechanics is a cornerstone of chemical engineering, but courses in fluid mechanics typically require students to have prior knowledge of advanced mathematical and |
Tuesday, November 22, 2022 2:08PM - 2:21PM |
Z27.00007: A focus group study of DEI climate and needs in an engineering department at a STEM-focused Research I institution Samantha Haynes, Abigail Bock, Kate Herrema, Achutha Kumar, Jenna Sims, Natalie Cook, Jennifer Munson, Anne E Staples In the spring 2022 semester, we designed and held a focus group study with members of the Department of Biomedical Engineering and Mechanics (BEAM) at Virginia Tech. The study was primarily carried out by five undergraduate student members of the BEAM department, who were enrolled in a generic upper level Undergraduate Research course and received course credit and letter grades for their work on the project. After we obtained IRB approval, focus groups were held on Zoom with undergraduate and graduate students, staff, and faculty members. The focus groups were intended to assess departmental members' needs and current levels of satisfaction with matters related to diversity, equity, inclusion, and belonging. The focus group transcripts were analyzed using the qualitative methods software Dedoose. Here, we describe the study's aims, design, methods, and timeline. We also offer possible future directions for building on such a study. |
Tuesday, November 22, 2022 2:21PM - 2:34PM |
Z27.00008: The Flow Visualization Guidebook Jean R Hertzberg The Flow Vis Guidebook is a new Open Educational Resource, lavishly illustrated and freely available online. It functions as a textbook to accompany a course at the University of Colorado, “Flow Visualization: the Physics and Art of Fluid Flow”, but it is designed to be accessible to a wide audience. The content begins with an overview of the flow visualization process, organized by the series of choices needed to create a flow visualization: 1: Phenomena - Why Does It Look Like That? 2: Visualization Techniques. 3: Lighting. 4: Photography. 5: Post Processing. The section on photography is quite detailed, including sections on cameras, lenses (lens laws, focal length, aperture and depth of field), exposure (shutters, aperture, sensors) and resolution. Next is an introduction to the physics of atmospheric clouds, focusing on instability and other lift mechanisms. The rest of the Guidebook revisits flow visualization techniques in more depth, organized by additive (dyes and particulate tracers) and refractive index methods, as applied to both liquid and gas flows. |
Tuesday, November 22, 2022 2:34PM - 2:47PM |
Z27.00009: Inexpensive, Hands-on Venturi Meter Learning Tools: Design, Manufacture, Test, and Implementation Aminul Islam Khan, Prashanta Dutta, Olivia M Reynolds, Olusola Adesope, David B Thiessen, Bernard J Vanwie Hands-on learning devices follow the "learn by doing" paradigm, giving students a deeper understanding of theoretical lessons. However, due to expensive equipment and limited time, not all educators have access to a suitable educational platform. That's why we have developed the venturi meter desktop learning module to provide effective fluid mechanics instruction at a reasonable cost. This module allows students to experiment with fluid flow in the classroom or laboratory and learn the basic principles behind the venturi meter. This study reports on the design, manufacture, testing, and classroom implementation of this low-cost, reproducible, highly visual desktop-sized venturi meter module. Comparison of measured flow rates and associated parameters with corresponding theory reveals its usefulness for demonstrating fluid flow measurement in the undergraduate classroom. Pretest, posttest, and motivational survey results show its efficacy to promote students' conceptual understanding and engagement in the classroom. Therefore, based on the evidence, we can conclude that the developed module can be used in the undergraduate classroom to enhance students' understanding of fluid mechanics concepts and improve their ability to apply theoretical concepts in practice. |
Tuesday, November 22, 2022 2:47PM - 3:00PM |
Z27.00010: Communicating science using creative abstract interpretations of common fluid phenomena Venkata Krisshna Fluid dynamics is commonly taught during the junior year of engineering and physics undergraduate programs. Despite strong intuitions on how fluids move, the coursework requires students to learn complex analytical solutions that seem disconnected from the visually striking behavior of fluids. The goal of this project is to create aesthetic representations of the intricate patterns found in moving fluids in an attempt to communicate the concepts to the general public without the tedious derivations. In this talk, I will present some of my abstract interpretations of common fluid phenomena. This project was conducted in collaboration with the Astrobiology Journal Club at Montana State University. Several acrylic paintings were exhibited in the Montana Science Center and the Bozeman Public Library. Details of the outreach events, its impact on the community at large and ideas to further the outreach efforts will be discussed. |
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