In the experiments on hydraulics, students will obtain a deeper understanding of fundamental principles regarding water flow which have been studied in lecture. The four different experiments were conducted, namely “water flow in pipe line”, “water flow in open channel”, “water flow on the weir” and “water wave”. In the end of experiments, student will have the PET bottle rocket contest, where students will design and create their original rockets based on the fluid dynamics. In the experiments on hydraulics, students’ performance will be evaluated by three activities: (i) “interview prior to experiment” where students’ background knowledge on hydraulics will be checked if they already have sufficient knowledge to conduct the experiment, (ii) “experiment” where students’ attitude and leadership will be considered during the observation and measurement of various phenomena relevant to water flow and (iii) “interview after the experiment” where students’ understanding on the experimental results and analysis will be evaluated.
By the end of this course, students will be able to:
1) Measure, analyze and discuss the water flow on weir including characteristics of water pressure and velocity in the potential flow.
2) Measure, analyze and discuss the theory and characteristics of water wave including water height, velocity and orbital of water particles.
3) Measure, analyze and discuss the resistance occurring in the turbulence flow and laminar flow in circular pipe
4) Measure, analyze and discuss open channel flow including hydraulic jump and water flow around the cylinder-shaped material.
5) Independently and creatively make a PET bottle rocket based on fluid dynamics.
blade type weir, potential flow, flow net, water wave, circular pipe flow, laminar flow, turbulence flow, resistance law, open channel flow, hydraulic jump, flow around cylinder-shaped material, PET bottle rocket contest
|✔ Specialist skills||Intercultural skills||Communication skills||✔ Critical thinking skills||✔ Practical and/or problem-solving skills|
In the experiments on hydraulics, (i) interview prior to experiment, (ii) demonstration of experimental equipment and procedure, (iii) experiment and (iv) interview after the experiment will be conducted for each experiment. In addition, PET bottle rocket contest will be conducted after the two experiments were completed.
|Course schedule||Required learning|
|Class 1||Flow on blade type weir, Flow net drawing, measurement of velocity and pressure distribution using manometer, pitot tube||Data analysis and relevant discussion about flow characteristics on blade type weir including estimation of velocity and pressure distribution using flow net and water discharge.|
|Class 2||Theory and characteristics of water wave, observation of orbital of water particles and Shoaling wave, measurement of wave height and velocity||Data analysis and relevant discussion about water wave including comparison of experimentally determined data with infinitesimal wave theory and characteristics of fluid movement|
|Class 3||Circular pipe flow, measurement of Piezometric head, water discharge and Reynolds number, determination of resistance in laminar and turbulence flow||Data analysis and relevant discussion about Circular pipe flow including drawing of hydraulic gradient line, relationship between friction loss and Reynolds number|
|Class 4||Open channel flow, drawing of hydraulic jump, measurement of water level and velocity of hydraulic jump, measurement of water velocity distribution in uniform flow, observation of flow characteristics around the cylinder-shaped material and measurement of fluid resistance||Data analysis and relevant discussion about open channel flow including specific energy, logarithmic law, fluid resistance (drag) working on cylinder-shaped material in smooth flow|
|Class 5||PET bottle rocket contest, Test launch, presentation, launch contest||Design and creation of rocket based on theory of fluid dynamics|
Mikio Hino, Hydrodynamics 『Meikai Suirigaku』, Maruzen (1983/01), ISBN-13: 978-4621027783 (Japanese)
Iehisa Nezu, Akihiro Tominaga 『Suirigaku』, Asakurashoten (2000/04), ISBN-13: 978-4254261394 (Japanese)
In the experiments on hydraulics, students’ performance will be evaluated by five activities: (i) interview prior to experiment (8%), (ii) experiment (16%), (iii) interview after the experiment (24%), (iv) final report (32%) and (v) PET bottle rocket contest (20%).
Hydraulics I（CVE.B201）, Hydraulics II（CVE.B202）