Results 51 to 60 of about 24,798 (283)

Advanced multiscale modal and frequency analysis of swirling spray flame near to lean blowout

Case Studies in Thermal Engineering
This study provides an in-depth characterization of Jet-A1 swirled flames' dynamics using advanced decomposition techniques on high-speed OH* chemiluminescence images. Research conducted in a 300-kW combustor with global fuel-to-air ratios Φ = 0.36, 0.24,
Maria Grazia De Giorgi, Pasquale Di Gloria, Donato Fontanarosa, Antonio Ficarella   +3 more
doaj   +1 more source

Application of Incremental Proper Orthogonal Decomposition for the Reduction of Very Large Transient Flow Field Data

International Journal of Automotive Engineering, 2019
With the increase of available computer performance, unsteady Computational Fluid Dynamics (CFD) is now widely used for industrial applications. For the analysis of unsteady vehicle aerodynamics, massive data storage is required for saving time series of
Daiki Matsumoto, Marco Kiewat, Christoph A. Niedermeier, Thomas Indinger   +3 more
doaj   +1 more source

A Finite Element Reduced-Dimension Method for Viscoelastic Wave Equation

Mathematics, 2022
In this study, we mainly employ a proper orthogonal decomposition (POD) to lower the dimension for the unknown Crank–Nicolson finite element (FE) (CNFE) solution coefficient vectors of the viscoelastic wave (VW) equation so as to build a reduced ...
Zhendong Luo
doaj   +1 more source

Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison

, 2011
This paper puts forth two new closure models for the proper orthogonal decomposition reduced-order modeling of structurally dominated turbulent flows: the dynamic subgrid-scale model and the variational multiscale model.
Ahuja, Akhtar, Akhtar, Aubry, Bagheri, Barbagallo, Barrault, Bazilevs, Bergmann, Bergmann, Berselli, Buffoni, Carlberg, Cazemier, Chaturantabut, Chaturantabut, Chorin, Cohen, Couplet, Couplet, Daescu, Dickinson, Evangelinos, Fang, Fang, Galbally, Galletti, Germano, Graham, Guermond, Hay, Hay, Holmes, Hughes, Hughes, Hughes, Imran Akhtar, Iollo, Iollo, Ito, Jeff Borggaard, John, John, Kim, Layton, Leonard, Luo, Ma, Meneveau, Morinishi, Noack, Noack, Noack, Noack, Noack, Norberg, Orszag, Podvin, Podvin, Podvin, Porté-Agel, Rempfer, Rempfer, Sagaut, Sirisup, Sirovich, Smagorinsky, Street, Traian Iliescu, Vasilyev, Vasilyev, Wang, Willcox, Zang, Zhu Wang   +74 more
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Analysis of the high-speed jet in a liquid-ring pump ejector using a proper orthogonal decomposition method

, 2022
To analyze the complex spatiotemporal evolution law of the high-speed jet flow field in a liquid-ring pump ejector, both the classic and spectral proper orthogonal decomposition (SPOD) methods were introduced to decompose the transient flow field based ...
Lijie Jiang, Renhui Zhang, Xuebing Chen, Guangming Guo   +3 more
semanticscholar   +1 more source

Reduced Order Optimal Control of the Convective FitzHugh-Nagumo Equation

, 2019
In this paper, we compare three model order reduction methods: the proper orthogonal decomposition (POD), discrete empirical interpolation method (DEIM) and dynamic mode decomposition (DMD) for the optimal control of the convective FitzHugh-Nagumo (FHN ...
Karasözen, Bülent, Küçükseyhan, Tuğba, Uzunca, Murat   +2 more
core   +1 more source

Modal Analysis of Fluid Flows: An Overview [PDF]

, 2017
Simple aerodynamic configurations under even modest conditions can exhibit complex flows with a wide range of temporal and spatial features. It has become common practice in the analysis of these flows to look for and extract physically important ...
Brunton, SL, Colonius, T, Dawson, STM, Gordeyev, S, McKeon, BJ, Rowley, CW, Schmidt, OT, Taira, K, Theofilis, V, Ukeiley, LS   +9 more
core   +2 more sources

Unlocking Photodetection Mode Switching from a Simple Lateral Design

Advanced Functional Materials, EarlyView.
A simple lateral 2D perovskite photodetector capable of switching among transient, continuous, and dual transient/continuous photoresponse modes is achieved by integrating photoconductive effects with capacitive coupling from the SiO2/Si substrate. Such light‐programmable photodetection mode switching enables triple‐channel information transmission and
Zijun (June) Yong, Keng‐Te Lin, Joel van Embden, Taimur Ahmed, Yumeng Du, Dashen Dong, Yiwen Mai, Junlin Lu, Sumeet Walia, Baohua Jia, Tianyi Ma   +10 more
wiley   +1 more source

Deim-based pgd for multi-parametric nonlinear model reduction [PDF]

, 2013
A new technique for efficiently solving parametric nonlinear reduced order models in the Proper Generalized Decomposition (PGD) framework is presented here.
Aguado, Jose V., Chinesta, Francisco, Cueto, Elías, Huerta, Antonio, Leygue, Adrien   +4 more
core