Results 1 to 10 of about 217,272 (213)

Path planning and intelligent control of a soft robot arm based on gas-structure coupling actuators

open access: yesFrontiers in Materials, 2022
A fully 3D-printed soft pneumatic robotic arm based on two types of gas-structure coupling actuators is designed for on-orbit servicing. The path planning algorithm and trajectory tracking control strategy of the arm are developed.
Yan Xu   +6 more
doaj   +1 more source

Thermal Aeroelastic Characteristics of Inflatable Reentry Vehicle Experiment (IRVE) in Hypersonic Flow

open access: yesInternational Journal of Aerospace Engineering, 2021
The inflatable reentry vehicle provides a new technical way in aerospace entry, descent, and landing. The structural failure of inflatable reentry vehicle experiment caused by thermal aeroelastic effect is serious, which needs to be further studied.
Jie Wu   +4 more
doaj   +1 more source

Concentration and Thermal Analysis of immiscible Tangent hyperbolic fluid with distinct viscosity through horizontal asymmetric channel: Theoretical and Observational study

open access: yesCase Studies in Thermal Engineering, 2023
This study examines cilia induced Tangent hyperbolic fluid flow with distinct viscosity, density in addition to thermal conductivity through horizontal asymmetric channel in two adjacent layers. The impact of mass and heat transfer in two adjacent layers
S. Shaheen   +4 more
doaj  

Effects of Mach Number and Magnetic Fields on Performance of MHDG in Nozzle

open access: yesJournal of Applied Science and Engineering
The technique of magnetohydrodynamic (MHD) power generation has attracted a lot of interest as a potential means of improving the effectiveness and performance of hypersonic vehicle.
Li Hao   +3 more
doaj   +1 more source

A case study for heat and mass transfer of viscous fluid flow in double layer due to ciliated channel

open access: yesCase Studies in Thermal Engineering, 2023
The present study is a measurement of the thermal and mass transfer of a two-layered flow of viscous fluid induced by cilia motion under the effect of buoyancy forces through a channel.
Nahid Fatima   +5 more
doaj  

Teleconnection Mechanisms for Tropical Pacific Descent Anomalies during El Niño(.

open access: yes, 2002
Teleconnection mechanisms in relative descent zones are examined using the quasi-equilibrium tropical circulation model (QTCM). The regions of anomalous descent neighboring the warm sea surface temperature (SST) anomalies in the eastern and central ...
H. Su, J. Neelin
semanticscholar   +1 more source

A case study of heat transmission in a Williamson fluid flow through a ciliated porous channel: A semi-numerical approach

open access: yesCase Studies in Thermal Engineering, 2023
Williamson fluid with cilia motion helps to understand the non-Newtonian fluids' rheological characteristics and get better heat transmission rates. Thus, the current problem is intended to semi-numerically discuss the heat transmission in Williamson ...
Usman   +6 more
doaj  

Fuel-Economic Flight Optimization for Descent and Approach Phases

open access: yes, 2013
Copyright © 2013 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc.
Yiming Zhao, P. Tsiotras
semanticscholar   +1 more source

The role of shape-dependent flight stability in the origin of oriented meteorites

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance Motivated by the conical shape of so-called oriented meteorites, we assess experimentally how the flight dynamics and postural stability of a body moving through a fluid depend on its shape.
Khunsa Amin   +4 more
semanticscholar   +1 more source

Extension of a sharp-interface immersed-boundary method for simulating parachute inflation

open access: yesAdvances in Aerodynamics
In this work, the sharp-interface immersed boundary (IB) method proposed by Mittal et al. (J Comput Phys 227(10):4825–4852, 2008) is extended to fluid-structure-interaction (FSI) simulation of parachute inflation by utilizing several open-source tools ...
Yang Zhang   +4 more
doaj   +1 more source

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