Results 81 to 90 of about 571,229 (299)
Computation of rotor aerodynamic loads in forward flight using a full-span free wake analysis [PDF]
The development of an advanced computational analysis of unsteady aerodynamic loads on isolated helicopter rotors in forward flight is described. The primary technical focus of the development was the implementation of a freely distorting filamentary ...
Bliss, Donald B. +4 more
core +1 more source
Simplified Free-Flight Testing in a Conventional Wind Tunnel [PDF]
, 1962 In order to incorporate the advantages of ballistic range testing with the convenience of wind tunnel testing, simplified techniques have been developed at the Jet Propulsion Laboratory (JPL) for free-flight testing of models in a conventional wind ...
Dayman, B., Jr.
core +1 more source
Development of Free Vortex Wake Model for Wind Turbine Aerodynamics under Yaw Condition [PDF]
, 2016 The aerodynamics of a wind turbine is governed by the flow around the rotor. One of the most severe operating conditions for a wind turbine is the yaw misalignment, when the mean upstream flow is not perpendicular to the rotor plane.
Abedi, Hamidreza +2 more
core +1 more source
Evolution of Materials and Device Stacks for HfO2‐Based Ferroelectric Memories
Advanced Materials Interfaces, EarlyView.This review summarizes engineering strategies for HfO2 based ferroelectric memories with focus on FeCAP and FeFET structures. It describes how dopant design, stress effects, and interface engineering improve the bulk ferroelectric response. It further discusses how channel engineering supports reliable memory characteristics and scalable integration ...
Eunjin Kim, Jiyong Woo
wiley +1 more source
Energies, 2017 It is important to understand tidal stream turbine performance and flow field, if tidal energy is to advance. The operating condition of a tidal stream turbine with a supporting structure has a significant impact on its performance and wake recovery. The
Yuquan Zhang +5 more
doaj +1 more source
Flow of evaporating, gravity-driven thin liquid films over topography [PDF]
, 2006 The effect of topography on the free surface and solvent concentration profiles of an evaporating thin film of liquid flowing down an inclined plane is considered.
H. M. Thompson +4 more
core +1 more source
Advanced Materials Technologies, EarlyView.Low‐power ferroelectric capacitors, based on superlattice HfO2‐ZrO2 is reported. With proper tuning of ferro and antiferroelectricity, an imprint‐free high switchable polarization charge (2Pr of 76 µC/cm2) is obtained with 2MV/cm leading to linear analog weight update and non‐volatile retention, providing a design guideline for emerging non‐volatile ...
Xinye Li +4 more
wiley +1 more source
Effect of the number of blades and solidity on the performance of a vertical axis wind turbine [PDF]
, 2016 Two, three and four bladed phgr-shape Vertical Axis Wind Turbines are simulated using a free-wake vortex model. Two versions of the three and four bladed turbines are considered, one having the same chord length as the two-bladed turbine and the other ...
Delafin, Pierre-Luc +3 more
core +4 more sources
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 +2 more
wiley +1 more source
Data-driven optimisation of wind farm layout and wake steering with large-eddy simulations [PDF]
Wind Energy ScienceMaximising the power production of large wind farms is key to the transition towards net zero. The overarching goal of this paper is to propose a computational method to maximise the power production of wind farms with two practical design strategies ...
N. Bempedelis +6 more
doaj +1 more source