Labs in Yokohama National University, Faculty of Engineering Science, Department of Mechanical Engineering, Materials Science, and Ocean Engineering

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A lab that studies the internal flow of fluid machinery such as pumps and water turbines, aiming to improve their performance.

The Fluid Engineering Lab studies the internal flow of fluid machinery such as pumps, water turbines, and turbines. The lab aims to improve the performance, efficiency, and stability of these machines. It investigates and understands the internal flow through both experiments and numerical analysis, and then attempts new designs.

#Turbomachinery #Pumps #Water wheels

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A lab that studies heat and flow inside fuel cells and batteries.

The Clean Energy Conversion Lab takes on research themes in a wide range of fields, building on thermal and fluid phenomena. Recently, the lab has been focusing on research into "electrochemical energy devices," which convert between electrical energy and chemical energy. Its main role is to investigate, through visualization and simulation, how heat, fluid, and mass are transported inside these devices. The development of reaction catalysts proceeds with insights gained from joint research with other labs within the university, companies, and research institutes.

#Electrochemical energy devices #Thermofluids #Fuel cells

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伝熱制御工学研究室 (introduction coming soon)

Radiative heat transfer and numerical simulation of combined heat transfer and flow fields; atmospheric phenomena and combustion field prediction

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A fluid dynamics lab that studies micro- and nanoscale flows using blood vessels and sperm.

The Fluid Dynamics Lab studies fluid dynamics with micro/nanoscale fluids, multiphase flow, and biofluids as its keywords. Fluid dynamics is essential in many fields, starting with mechanical engineering, and is expected to be increasingly in demand in interdisciplinary areas. Drawing on these strengths, the lab actively pursues research that integrates different fields. On the lab's website, it is introduced under the name "Hyakutake Lab."

#Micro- and nanofluidics #Multiphase flow #Biofluids

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A lab that investigates the aerodynamics of rockets and flying cars through computation and wind tunnel experiments.

The Aerodynamics Lab is centered on aerospace engineering and studies aerodynamics, the science of airflow, and compressible fluid dynamics. Using computational fluid dynamics (CFD), which calculates airflow on computers, the lab analyzes the aerodynamics of rockets and eVTOL aircraft (flying cars). It also uses wind tunnel facilities at JAXA's Institute of Space and Astronautical Science as well as the lab's own wind tunnels to investigate aerodynamic forces experimentally. Most research themes are conducted jointly with JAXA, and the themes are decided through discussion between students and faculty.

#Aerodynamics #Computational fluid dynamics #eVTOL

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This lab studies microthrusters for micro- and nanosatellites through both experiments and numerical computation.

The Plasma and Space Propulsion Lab researches and develops small propulsion units (microthrusters) to be mounted on micro- and nanosatellites. Most micro- and nanosatellites carry no thruster, so they cannot freely choose their own orbits. With a microthruster on board, a satellite can be controlled more effectively and can also be deorbited safely. The lab approaches this research through both experiments and numerical computation.

#Microthrusters #Electrospray #Ion thrusters

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This lab studies heat exchangers and heat transport devices that move heat efficiently and provide cooling.

The Thermal Energy Engineering Lab works on experiments and computational fluid dynamics (CFD) analysis to improve the performance of heat exchangers and heat transport devices. Its targets range from familiar air-conditioning equipment to the cooling of electronic devices and batteries, where moving and controlling heat efficiently is a challenge. Through observation and measurement of phenomena in experiments and through CFD simulation, the lab aims to understand thermal-fluid phenomena and develop new cooling and heat transport technologies.

#Heat exchangers #Gas-liquid two-phase flow #Heat pipes

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This lab explores how flow and sound work through large-scale simulation.

The Fluid Acoustics Engineering Lab studies complex flow and sound phenomena, focusing on turbomachinery such as compressors and fans. Using large-scale fluid simulations on supercomputers, the lab investigates how flows change over time and how flow-induced noise is generated and propagates. It is also developing methods that combine machine learning with physics-based inverse analysis to reconstruct the state of a flow from acoustic signals. On the lab's website, it is also introduced under the name "Kusano Lab."

#Fluid acoustics #Turbomachinery #Computational fluid dynamics

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The lab studies how to transmit, convert, and control electric and fluid power efficiently.

The Mechatronics and Fluid Power Lab studies the transmission, conversion, and control of power in mechanical systems. Focusing on transmitting, converting, and controlling electric, fluid, and mechanical power with high efficiency, the lab works with a wide range of actuators. The lab also develops devices that serve as interfaces for electronic-mechanical control and electronic-fluid control, and works on making power transmission systems more energy-efficient.

#Mechatronics #Actuators #Power transmission

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The lab studies the science and technology of friction processes.

The Nakano-Okubo Lab specializes in "the science and technology of friction processes" and aims for a unified understanding by studying diverse friction processes one by one. The Nakano Lab explores the mysteries of solid friction through minimal modeling, while the Okubo Lab investigates the phenomena through measurements that observe friction interfaces in real time. Through collaboration across disciplines and among industry, government, and academia, the lab aims to drive both science and technology forward and contribute to a sustainable society. On the lab's website, the lab is presented under the name "Nakano & Okubo Lab."

#Friction processes #Solid friction #Multimodal operando measurement