Results 41 to 50 of about 13,340 (180)

Improving Summer Thermal Comfort in Renovated Buildings Through Passive Strategies: A Chongqing Case Study

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
This study aims to bridge the research gap in thermal optimization for urban micro‐renewal by proposing an integrated approach that combines natural factors with functional requirements. Through field experiments and DesignBuilder simulations (validated with local climate data), we evaluated a typical building in Chongqing, China, under summer hot ...
Wenwei Wang   +7 more
wiley   +1 more source

Transonic unsteady airloads on an energy efficient transport wing with oscillating control surfaces [PDF]

open access: yes
An aspect ratio 10.8 supercritical wing with oscillating control surfaces is described. The wing is instrumental with 252 static orifices and 164 in situ dynamic pressure transducers for studying the effects of control surface deflection on steady and ...
Cazier, F. W., Jr.   +3 more
core   +1 more source

Effects of Multistage Geotechnical Erosion on Dynamic Mechanical Response of Buried Pipelines

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
River‐spanning pipelines are prone to serious hazards during flooding events, which can trigger erosion, exposure, and large‐scale flotation. In this research, a numerical simulation framework was developed using smoothed particle hydrodynamics (SPH) to analyze the dynamic behavior of pipelines subjected to dam‐breach flood scenarios.
Ning Shi, Hong Zhang, Jianyong Han
wiley   +1 more source

Analytical flutter investigation of a composite propfan model [PDF]

open access: yes
A theoretical model and an associated computer program for predicting subsonic bending-torsion flutter in propfans are presented. The model is based on two-dimensional unsteady cascade strip theory and three-dimensional steady and unsteady lifting ...
Kaza, K. R. V.   +3 more
core   +1 more source

Linearized Three‐Dimensional Planing in Deep and Shallow Water

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 23, 15 December 2025.
ABSTRACT The traditional analysis of three‐dimensional planing is studied in detail using potential‐flow theory together with linearized free‐surface conditions. The work is extended here to the case of water of finite depth. The planing surface is modeled as a traveling pressure distribution.
Lawrence J. Doctors
wiley   +1 more source

RESEARCH OF THE HIGH HARMONICS INDIVIDUAL BLADE CONTROL EFFECT ON VIBRATIONS CAUSED BY THE HELICOPTER MAIN ROTOR THRUST

open access: yesНаучный вестник МГТУ ГА, 2017
The paper presents numerical results analysis of main rotor vibration due to helicopter main rotor thrust pulsation.The calculation method, the object of research and numerical research results with the aim to reduce the amplitude of the vibrations ...
B. S. Kritsky   +2 more
doaj  

An analysis for the sound field produced by rigid wide cord dual rotation propellers of high solidarity in compressible flow [PDF]

open access: yes
An unsteady lifting service theory for the counter-rotating propeller is presented using the linearized governing equations for the acceleration potential and representing the blades by a surface distribution of pulsating acoustic dipoles distributed ...
Bober, L. J., Ramachandra, S. M.
core   +1 more source

Unified aeroacoustics analysis for high speed turboprop aerodynamics and noise. Volume 3: Application of theory for blade loading, wakes, noise, and wing shielding [PDF]

open access: yes
Results of the program for the generation of a computer prediction code for noise of advanced single rotation, turboprops (prop-fans) such as the SR3 model are presented.
Hanson, D. B.   +3 more
core   +1 more source

Model-based Aeroservoelastic Design and Load Alleviation of Large Wind Turbine Blades

open access: yes, 2014
This paper presents an aeroservoelastic modeling approach for dynamic load alleviation in large wind turbines with trailing-edge aerodynamic surfaces. The tower, potentially on a moving base, and the rotating blades are modeled using geometrically non ...
Bossanyi E. A.   +17 more
core   +1 more source

Three-dimensional effects on pure tone fan noise due to inflow distortion [PDF]

open access: yes
Two dimensional, quasi three dimensional and three dimensional theories for the prediction of pure tone fan noise due to the interaction of inflow distortion with a subsonic annular blade row were studied with the aid of an unsteady three dimensional ...
Kobayashi, H.
core   +1 more source

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