Zobrazeno 1 - 10
of 8 377
pro vyhledávání: '"A. HANIFI"'
Autor:
Alva, Elías, Yuan, Zhenyang, Araújo, Tiago B., Amaral, Filipe R. do, Hanifi, Ardeshir, Cavalieri, André V. G.
Laminar separation bubbles around airfoils lead to the growth of instability waves, which enhances to acoustic scattering at the trailing-edge, forming a feedback loop that produces to tonal noise. To reduce the trailing-edge tonal noise, an array of
Externí odkaz:
http://arxiv.org/abs/2410.05134
In a combined experimental and numerical effort we investigate airfoil tonal noise generation and reduction. The means of noise control are streak generators in form of cylindrical roughness elements. These elements are placed periodically along the
Externí odkaz:
http://arxiv.org/abs/2410.05129
Publikováno v:
Wind Energy Science, Vol 6, Pp 715-736 (2021)
This work aims to develop a simple framework for transition prediction over wind-turbine blades, including effects of the blade rotation and spanwise velocity without requiring fully three-dimensional simulations. The framework is based on a set of b
Externí odkaz:
https://doaj.org/article/9b947b84a9d94b9da300abf323914824
Autor:
Kudelin, Igor, Shirmohammadi, Pedram, Groman, William, Hanifi, Samin, Kelleher, Megan L., Lee, Dahyeon, Nakamura, Takuma, McLemore, Charles A., Lind, Alexander, Meyer, Dylan, Bai, Junwu, Campbell, Joe C., Bowers, Steven M., Quinlan, Franklyn, Diddams, Scott A.
Modern communication, navigation, and radar systems rely on low noise and frequency-agile microwave sources. In this application space, photonic systems provide an attractive alternative to conventional microwave synthesis by leveraging high spectral
Externí odkaz:
http://arxiv.org/abs/2404.00136
Under action of free-stream turbulence (FST), elongated streamwise streaky structures are generated inside the boundary layer, and their amplitude and wavelength are crucial for the transition onset. While turbulence intensity is strongly correlated
Externí odkaz:
http://arxiv.org/abs/2403.08543
Kerr optical frequency division with integrated photonics for stable microwave and mmWave generation
Autor:
Sun, Shuman, Harrington, Mark W., Tabatabaei, Fatemehsadat, Hanifi, Samin, Liu, Kaikai, Wang, Jiawei, Wang, Beichen, Yang, Zijiao, Liu, Ruxuan, Morgan, Jesse S., Bowers, Steven M., Morton, Paul A., Nelson, Karl D., Beling, Andreas, Blumenthal, Daniel J., Yi, Xu
Optical frequency division (OFD) has revolutionized microwave and mmWave generation and set spectral purity records owing to its unique capability to transfer high fractional stability from optical to electronic frequencies. Recently, rapid developme
Externí odkaz:
http://arxiv.org/abs/2402.11772
Publikováno v:
Journal of Fluid Mechanics. 2024;979:A31
Large-eddy simulations of a flat-plate boundary layer, without a leading edge, subject to multiple levels of incoming free stream turbulence are considered in the present work. Within an input-output model where non-linear terms of the incompressible
Externí odkaz:
http://arxiv.org/abs/2402.10306
The low-frequency modal and non-modal stability characteristics of an incompressible, pressure-gradient-induced turbulent separation bubble (TSB) are investigated with the objective of studying the mechanism responsible for the low-frequency contract
Externí odkaz:
http://arxiv.org/abs/2311.13446
This research report explores the role of eye gaze in human-robot interactions and proposes a learning system for detecting objects gazed at by humans using solely visual feedback. The system leverages face detection, human attention prediction, and
Externí odkaz:
http://arxiv.org/abs/2308.13318
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract In this research, magnetic bismuth ferrite nanoparticles (BFO MNPs) were prepared through a convenient method and characterized. The structure and morphological characteristics of the prepared nanomaterial were confirmed through analyses usi
Externí odkaz:
https://doaj.org/article/aa132b5403604bfbafe5c547041fd6b1