Results 61 to 70 of about 43,130 (185)
High Reynolds number tests of a Boeing BAC I airfoil in the Langley 0.3-meter transonic cryogenic tunnel [PDF]
A wind tunnel investigation of an advanced-technology airfoil was conducted in the Langley 0.3-Meter Transonic Cryogenic Tunnel (TCT). This investigation represents the first in a series of NASA/U.X.
Butler, T. W. +4 more
core +1 more source
Advanced Intelligent Systems, Volume 8, Issue 2, February 2026.This review explores how shape‐changing structures—origami, bistable, and laminate structures—enable multifunctionality in soft robotics and metamaterials. Starting from structural design, it examines core principles, real‐world applications, and ongoing challenges.
Lingchen Kong, Yaoyao Fiona Zhao
wiley +1 more source
Effects of an Owl Airfoil on the Aeroacoustics of a Small Wind Turbine
EnergiesAerodynamic noise emitted by small wind turbines is a concern due to their proximity to urban environments. Broadband airfoil self-noise has been found to be the major source, and several studies have discussed techniques to reduce airfoil leading-edge ...
Dean Sesalim, Jamal Naser
doaj +1 more source
Airfoil Optimization of Tiltrotor Aircraft Forward Flight Mode Based on Isight
Hangkong gongcheng jinzhan, 2019 As one of the main development trends of the next generation rotor-crafts, it is of important significance to study the aerodynamic optimization design of its wings for improving the flight performance of tiltrotor aircraft.NACA2412 is employed as the ...
Zhao Guang +4 more
doaj +1 more source
Design of a low-noise aeroacoustic wind tunnel facility at Brunel University [PDF]
, 2014 This paper represents the design principle of a quiet, low turbulence and moderately high speed aeroacoustic wind tunnel which was recently commissioned at Brunel University.
Bradshaw P. +9 more
core +1 more source
Optimization in Conceptual Design of a BWB UAV Using an Adaptive Kriging‐Based Surrogate Model
Engineering Reports, Volume 8, Issue 2, February 2026.An adaptive Kriging‐based framework for Blended Wing Body UAV optimization is presented. The exploitation‐oriented strategy yields a 14.5% range improvement, while sensitivity analysis identifies fuel mass as the dominant parameter for efficient conceptual design. ABSTRACT To improve optimization efficiency in the conceptual design of Blended Wing Body
Xinshi Suo +3 more
wiley +1 more source
NASA low- and medium-speed airfoil development [PDF]
The status of NASA low and medium speed airfoil research is discussed. Effects of airfoil thickness-chord ratios varying from 9 percent to 21 percent on the section characteristics for a design lift coefficient of 0.40 are presented for the initial low ...
Beasley, W. D. +2 more
core +1 more source
Robust, optimal subsonic airfoil shapes [PDF]
, 2008 Method system, and product from application of the method, for design of a subsonic airfoil shape, beginning with an arbitrary initial airfoil shape and incorporating one or more constraints on the airfoil geometric parameters and flow characteristics ...
Rai, Man Mohan
core +1 more source
Mars Science Helicopter Conceptual Design [PDF]
, 2020 Robotic planetary aerial vehicles increase the range of terrain that can be examined, compared to traditional landers and rovers, and have more near-surface capability than orbiters. Aerial mobility is a promising possibility for planetary exploration as
Balaram, Jayarao +15 more
core +1 more source
Single-stage experimental evaluation of tandem-airfoil rotor and stator blading for compressors, part 8 [PDF]
An experimental investigation was conducted with an 0.8 hub/tip ratio, single-stage, axial flow compressor to determine the potential of tandem-airfoil blading for improving the efficiency and stable operating range of compressor stages.
Brent, J. A., Clemmons, D. R.
core +1 more source