Results 31 to 40 of about 4,435 (226)

Unsteady Fluid Force Acting on Two-Dimensional Circular Cylinder Bundles on Fluid-Elastic Vibration.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1998
In this paper we describe the flow around two-dimensional circular cylinder bundles supported by wires. The experiment was carried out in an N.P.L. blow-down-type wind-tunnel with a working section of 500mm×500mm×2000mm, and with the Reynolds number of 9.4×103.
Shiki OKAMOTO, Yoshinori KATOH, Naoki YOSHINO, Tetsuji TOMITA   +3 more
openaire   +2 more sources

Mixed Convective MHD Micro-Polar Fluid Flow in a Porous Medium with Radiation Absorption [PDF]

International Journal of Mathematical, Engineering and Management Sciences, 2019
An unsteady mixed convective flow of micro-polar fluid in a porous medium has been considered in presence of transverse magnetic field, Dufour effects and radiation. Effects of radiation absorption and heat source/sink are taken into account.
Debasish Dey
doaj   +1 more source

Unsteady Fluid Forces on a Blade in a Cross-Flow Turbine.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1993
The internal flow in a cross-flow turbine is nonuniform because the water passes through only part of the runner. Therefore, the unsteady fluid forces act on a blade through rotation. The experimental and theoretical studies for determination of fluid forces on the blade in a cross-flow turbine are conducted.
Junichiro Fukutomi, Yoshiyuki Nakase, Masashi Ichimiya, Hirohito Ebisu   +3 more
openaire   +3 more sources

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

Measurement and Modeling of Unsteady Fluid Force Acting on the Trunk of a Swimmer Using a Swimmer Mannequin Robot

Journal of Fluid Science and Technology, 2012
The objectives of this study were to measure the unsteady fluid force acting on the trunk of a swimmer using the ‘swimmer mannequin robot’ and to model the fluid forces based on the formulation of the swimming human simulation model SWUM ...
Motomu NAKASHIMA, Yusuke EJIRI
doaj   +1 more source

Aerodynamic damping and amplitude response of piezoelectric fans in free and confined space

Engineering Applications of Computational Fluid Mechanics, 2022
The main objective is to develop a predictive model to directly predict and describe the sensitivity of aerodynamic damping and amplitude response to the proximity of surrounding walls.
Na Li, Yang Liu, Jigang Gao, Zaixing Huang, Luoya Wang   +4 more
doaj   +1 more source

Study on the Intelligent Modeling of the Blade Aerodynamic Force in Compressors Based on Machine Learning

Mathematics, 2021
In order to obtain the aerodynamic loads of the vibrating blades efficiently, the eXterme Gradient Boosting (XGBoost) algorithm in machine learning was adopted to establish a three-dimensional unsteady aerodynamic force reduction model.
Mingming Zhang, Shurong Hao, Anping Hou
doaj   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Unsteady Vortex Structures in the Wake behind Bluff Bodies

Journal of Fluid Science and Technology, 2012
Unsteady vortex structure in the wake behind bluff body was experimentally investigated by wind tunnel experiment. A flexible rectangular plate, which was made of a soft polyurethane block, shows the sway motion and flow-induced vibration caused by fluid
Hitoshi ISHIKAWA, Shunsuke YAMADA, Seiji ICHIKAWA   +2 more
doaj   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source