A5053204436- Fluid Dynamics and Vibration Analysis
- Wind and Air Flow Studies
- Fluid Dynamics and Turbulent Flows
- Model Reduction and Neural Networks
- Aerodynamics and Fluid Dynamics Research
- Vibration and Dynamic Analysis
- Structural Health Monitoring Techniques
- Structural Behavior of Reinforced Concrete
- Structural Engineering and Vibration Analysis
- Concrete Corrosion and Durability
- Aeolian processes and effects
- Innovative concrete reinforcement materials
- Railway Engineering and Dynamics
- Structural Load-Bearing Analysis
- Concrete Properties and Behavior
- Concrete and Cement Materials Research
- Plant Water Relations and Carbon Dynamics
- Corrosion Behavior and Inhibition
- Infrastructure Maintenance and Monitoring
- Air Quality and Health Impacts
- Seismic Performance and Analysis
- Fluid Dynamics Simulations and Interactions
- Building Energy and Comfort Optimization
- Machine Fault Diagnosis Techniques
- Meteorological Phenomena and Simulations
Chongqing University
2018-2024
Hong Kong University of Science and Technology
2016-2021
University of Hong Kong
2016-2021
China Earthquake Administration
2021
Chongqing Jiaotong University
2013-2018
University of Notre Dame
2018
Changsha University of Science and Technology
2017
China Communications Construction Company (China)
2017
Tongji University
2017
Scientific research and engineering practice often require the modeling decomposition of nonlinear systems. The Dynamic Mode Decomposition (DMD) is a novel Koopman-based technique that effectively dissects high-dimensional systems into periodically distinct constituents on reduced-order subspaces. As mathematical hatchling, DMD bears vast potentials yet an equal degree unknown. This serial effort investigates nuances sampling with engineering-oriented emphasis. Part I aimed at elucidating...
This work develops a data analysis procedure, namely, proper orthogonal decomposition (POD)-dynamic mode (DMD) augmented analysis, to isolate the energy- and evolution-wise dominant features of flow field in street canyon. combination aims extract modes imposing critical influence on pollutant dispersion from both energetic dynamic perspectives. The two techniques were first conducted based large-eddy simulation results. Subsequently, POD DMD ranking, extracted classified into three types:...
Abstract A photo‐ and electro‐thermal film can convert sunlight electricity into heat to solve icing problems. Combination of them provides an efficient strategy for all‐day anti‐/de‐icing. However, only opaque surfaces have been reported, due the mutual exclusiveness between photon absorption transmission. Herein, a highly transparent scalable solution‐processed photo‐electro‐thermal is which exhibits ultra‐broadband selective spectrum separate visible light from countertrend suppress...
Buildings remain pivotal in global energy consumption, necessitating a focused approach toward enhancing their efficiency to alleviate environmental impacts. Precise prediction stands as linchpin optimizing efficiency, offering indispensable foresight into future demands critical for sustainable environments. However, accurately forecasting consumption individual households and commercial buildings presents multifaceted challenges due diverse patterns. Leveraging the emerging landscape of...
The present work extends the parametric investigation on sampling nuances of dynamic mode decomposition (DMD) under Koopman analysis. Through turbulent wakes, study corroborated generality universal convergence states for all DMD implementations. It discovered implications range and resolution—determinants spectral discretization by discrete bins highest resolved frequency range, respectively. reaffirmed necessity state independence, too. Results also suggested that observables derived from...
This serial work presents a Linear-Time-Invariance (LTI) notion to the Koopman analysis, finding consistent and physically meaningful modes addressing long-standing problem of fluid-structure interactions: deterministically relating fluid structure. Part 1 (Li et al., 2022) developed Koopman-LTI architecture applied it pedagogical prism wake. By systematic procedure, LTI generated sampling-independent linearization that captured all recurring dynamics, six corresponding, orthogonal, in-synch...
This work presents a post-data analysis procedure, namely, proper orthogonal decomposition (POD)–dynamic mode (DMD)–discrete Fourier transform analysis, for evaluating the dominant features of flow fields from both energetic and dynamic perspectives. The large-eddy simulation (LES) was first employed to reproduce field surrounding three types building layouts. Subsequently, POD DMD were conducted according LES results. extracted modes classified into based on DMD: Type-1 mode: energetically...
We investigate solutions of the Helmholtz equation involving local fractional derivative operators. make use series expansion method and variational iteration method, which are based upon The nondifferentiable solution problem is obtained by using these methods.
Graphene oxide (GO) has been widely used as an additive due to its numerous unique properties. In this study, the compressive strength, flexural strength and elasticity modulus of concrete containing 0.02 wt%, 0.05 wt % 0.08 GO, dry shrinkage performance have experimentally investigated. After sample preparation, apparatus for compression test were relevant properties GO. The dial indicators measure samples. results indicate that GO can considerably improve at age 28 days by 4.04–12.65%,...