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Newsletter Nagare2023.11.29 Update
― Theme : "Mechanical Engineering Congress, 2023 Japan (MECJ-23)" ―
- Preface
Hideo MORI, Tetsuya KANAGAWA - Why do mistakes communicate and spread? (Diffusion and prevention of misperceptions regarding fluid mechanics)
Ryozo ISHIWATA (Kanagawa Institute of Technology) - Toward Digital Twin Numerical Turbine
Satoru YAMAMOTO (Tohoku University) - Measurements of turbulent wall pressure fluctuation field in a turbulent boundary layer and the wing-flat plate juncture flow using the many-channel microphone array
Yoshitsugu NAKA (Meiji University) - PSP and TSP for measuring pressure and temperature fields on wall surfaces and their applications
Yasuhiro EGAMI (Aichi Institute of Technology) - Flow measurement using MEMS differential pressure sensor
Hidetoshi TAKAHASHI (Keio University), Takuto Kishimoto (Keio University), Kei Ohara (Keio University), Kyota Shimada (Keio University) - Flexible Sheet Sensor for Advanced Flow Monitoring
Masahiro MOTOSUKE (Tokyo University of Science)
― Theme : "AJK FED 2023" ―
- Preface
Hyun Jin PARK, Shoichi MATSUDA, Chungpyo HONG - Evaluation of railway vehicles' resistance against strong crosswinds and its application for safe railway operation
Yayoi MISU (East Japan Railway Company) - Order within Turbulence
Susumu GOTO (Osaka University), Yutaro MOTOORI (Osaka University) - LES/Lagrangian-particle-simulation of a Reactive Turbulent Planar Jet
Jiabao Xing（Nagoya University）, Tomoaki WATANABE（Nagoya University）, and Koji NAGATA（Kyoto University） - Unsteady Characteristics of Tip Leakage Vortex Cavitation in the Occurrence of Cavitation Instability in Liquid Rocket Inducer
Koki TAMURA (Tohoku University)，Yuto NAKURA (Tohoku University), Satoshi KAWASAKI (Japan Aerospace Exploration Agency), Yuka IGA (Tohoku University) - Water Condensation in PEMFCs at Nano-scale: Insights through Lattice DFT simulations
Clint John Cortes OTIC (The University of Tokyo), Masazumi ARAO (FC-Cubic), Masashi MATSUMOTO (FC-Cubic), Hideto IMAI (FC-Cubic), Ikuya KINEFUCHI (The University of Tokyo) - Reconstruction of Fluid Stress Field from Flow Birefringence using Physics-Informed Convolutional Encoder-Decoder (PICED)
Daichi IGARASHI (Tokyo University of Agriculture and Technology), Shun MIYATAKE (Tokyo University of Agriculture and Technology), Jingzu YEE (Tokyo University of Agriculture and Technology), Yoshiyuki TAGAWA (Tokyo University of Agriculture and Technology) - Determination of Permeability in the Volume Penalisation Method with a Smooth Mask Function
Taichi TSUJIMOTO (Osaka University), Yuta NAKAO (Osaka University), Takuya TSUJI (Osaka University), Toshitsugu TANAKA (Osaka University), Kimiaki WASHINO (Osaka University)
Enjoy Fluid Experiments Lab.2023.3.3 Update
Viscosity Air resistance |
Dropping a horizontal disk into a cylinder |  |
Drop a light disk into a cylinder. Let us observe how it falls slowly. |
Viscosity Air resistance |
Dropping a slanting disk into a cylinder |  |
What happens when you drop a slanting disk into a cylinder? |
Viscosity Air resistance |
Dropping a circular paper into a cylinder |  |
Let us drop a paper cut into a circle into a PET bottle cylinder. |
Flow velocity measurement |
Measuring velocity of flow 1 (Ping-pong ball anemometer) |
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Let us measure the wind speed using a Ping–pong ball |
Flow velocity measurement |
Measuring velocity of flow 2 (Measuring flow velocity of water) |
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Let us measure the flow velocity of water using a straw |
Flow velocity measurement |
Measuring velocity of flow 3 (Pitot tube) |
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Let us measure the wind speed using a straw |
Flow velocity measurement Pitot tube |
Measuring velocity of flow 4 (Inclined Pitot tube) |
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Let us tilt the pitot tube and measure the slow flow. |
Air resistance |
Function of wind and rubber (3rd grade Elementary School Science) |
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Wind and rubber can move things. Let us examine the force caused by the wind. |
Air resistance |
Force received from wind 1 (Effect of size) |
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How does the force received from the wind change depending on the size of an object? |
Air resistance |
Force received from wind 2 (Effect of shape) |
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How does the force received from the wind change depending on the shape of an object? |
Air resistance |
Streamlined shape with low air resistance |  |
A shape with a rounded front and a pointed back has a low air resistance and is called a streamlined shape. |
Rotary wing |
Bamboo-copter |  |
Let us fly the handmade bamboo-copter |
Rotary wing |
Wind-powered vehicle |  |
A model car that runs by turning a propeller with rubber power |
Rotary wing |
Wind-powered ship |  |
A model ship that runs by turning a propeller with rubber power |
Rotary wing |
Model aircraft |  |
A model airplane that flies by turning a propeller with rubber power |
| Buoyancy | Taking out the object that lies at the bottom 1 |  |
Take out the object at the bottom of a PET bottle |
| Depth and Pressure | Taking out the object that lies at the bottom 2 |  |
Take out the object at the bottom of a PET bottle |
| Depth and Pressure | Surgical Operation? |  |
Take out object inside the PET bottle from a PET bottle side cut |
| Depth and Pressure | Taking out stone from PET bottle |  |
Take out the big stone inside a PET bottle |
Coanda effect |
A Balloon that Floats at an Angle (Sequel) |  |
Let us attach the tail of a newspaper to a balloon and float it with a dryer |
Coanda effect |
Flying Octopus kite balloon |  |
Let us float an 8-legged octopus kite balloon with a dryer |
Coanda effect |
Float a balloon with a stick |  |
Let us attach a stick to a balloon and float it with a dryer |
Coanda effect |
Flying Slither |  |
Let us float a slither with a dryer |
| Bernoulli's principle |
The hot topic on study, technological development and R&D in fluids engineering fields2023.9.29 Update
| Mean velocity profile in high Re-number turbulent boundary layer: Its universality and recent progress Yoshiyuki TSUJI（Nagoya University）， Atsushi IDO（Railway technical research institute）， Michio Nishioka（Osaka Prefecture University） |
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| Bayesian optimization of traveling wave-like wall deformation for friction drag reduction in turbulent channel flow Yusuke NABAE (Tokyo University of Science), Koji FUKAGATA (Keio University) |
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Let's explore lab! (Introduction of laboratories)2022.10.17 Update
The New Carbon-neutral Fuel Engineering Laboratory! （Yamaguchi University）
Ryoya Shiraishi, Associate professor Carbon-neutral Fuel Engineering Laboratory, |
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