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Yifan Wang, Jinglei Xu, Qihao Qin, Ruiqing Guan and Le Cai
In this study, we propose a novel dynamic mode decomposition (DMD) energy sorting criterion that works in conjunction with the conventional DMD amplitude-frequency sorting criterion on the high-dimensional schlieren dataset of the unsteady flow of a spik...
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Qi Hong, Tianyi Zhou and Junde Qi
Polishing force is one of the key process parameters in the polishing process of blisk blades, and its control accuracy will affect the surface quality and processing accuracy of the workpiece. The contact mechanism between the polishing surface and flap...
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Fan Zhang, Bo-Chuan Chen, Zhen-Zhen Gui, Jian-Hui Zhang, Xi Huang, Jia-Li Liang, Yao-Hua Zeng, Tian Tan, Tang Xie, Yu-Xin Wen and Jia-Long Wang
Dynamic mesh atomizers have been widely used in various fields because of their compact structure, low energy consumption, and low production costs. The finite element method is an important technique to analyze the factors affecting the atomization perf...
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Nadir Abbas, Zeshan Abbas and Xiaodong Liu
The rapid expansion of the Internet and communication technologies is leading to significant changes in both society and the economy. This development is driving the evolution of smart cities, which utilize cutting-edge technologies and data analysis to ...
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Pradeep Kumar Pavalavanni, Jae-Eun Kim, Min-Seon Jo and Jeong-Yeol Choi
Bifurcation of the characteristic cells into multiple smaller cells and decay of those cells into single large characteristic cell is observed frequently. In the present study the bifurcation phenomenon of the detonation front is investigated for margina...
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Pradeep Kumar Pavalavanni, Min-Seon Jo, Jae-Eun Kim and Jeong-Yeol Choi
An unstable shock-induced combustion (SIC) case around a hemispherical projectile has been numerically studied which experimentally produced a regular oscillation. Comparison of detailed H2/O2 reaction mechanisms is made for the numerical simulation of S...
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Yuwei Cheng, Qian Chen, Xiaofei Niu and Shufeng Cai
Supersonic combustion instability studies are crucial for the future maturation of scramjet engines. In the present paper, the supersonic combustion instability in a strut-based scramjet combustor is investigated through large eddy simulation and dynamic...
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Gyurhan Nedzhibov
Dynamic Mode Decomposition with Control is a powerful technique for analyzing and modeling complex dynamical systems under the influence of external control inputs. In this paper, we propose a novel approach to implement this technique that offers comput...
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Jin Wei, Wei Liu, Peixin Gao and Yujie Ding
In this paper, an analytical dynamic model is proposed for vibration suppression of a multi-span continuous bridge by tuned mass dampers (TMDs). Firstly, the partial differential equations (PDEs) that govern the motion of the multi-span continuous bridge...
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Anastasiia Nazvanova, Guang Yin and Muk Chen Ong
Flow around two tandem cylinders at Re = 3.6 × 106 for different center-to-center spacing ratio (??/??
L
/
D
) is investigated numerically using two-dimensional (2D) Unsteady Reynolds-Averaged Navier?Stokes (URANS) equations combined with a standard ??-?...
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Seongpil Cho, Hyungwon Shim and Young-Shik Kim
The conventional proportional derivative (PD) control algorithm with appropriate gain scheduling is generally applied to a dynamic positioning (DP) system. However, finding appropriate gains through gain scheduling makes the DP system more complicated. A...
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Huimin Wang, Xiaojian Wei and Weixuan Ao
Park green space (PGS) is an important part of urban ecosystem and green infrastructure, and the ease of access to PGS is closely related to the health of residents. A growing number of studies have attempted to identify accessibility disparities, but re...
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Huajin Shao, Yanfei Zuo and Zhinong Jiang
A method for dynamic finite element (FE) model updating based on correlated mode auto-pairing and adaptive evolution screening (CMPES) is proposed to overcome difficulties in pairing inaccurate analytical modal data and incomplete experimental modal data...
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Xiang Li, Qingchun Lei, Xiaocun Zhao, Wei Fan, Shuang Chen, Li Chen, Ye Tian and Quan Zhou
The combustion characteristics of a hydrogen-fueled supersonic combustor featuring a large cavity length-to-depth ratio (i.e., 11) were examined by performing experimental trials while varying the fuel injector positions and equivalence ratios. During th...
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Ji Zhang, Daoning Yang, Yi Wang and Dongdong Zhang
The present proposed mixing enhancement strategy can be a good candidate for application in Scramjet and RBCC combustors of hypersonic propulsion systems.
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Álvaro Rollón de Pinedo, Mathieu Couplet, Bertrand Iooss, Nathalie Marie, Amandine Marrel, Elsa Merle and Roman Sueur
Finding outliers in functional infinite-dimensional vector spaces is widely present in the industry for data that may originate from physical measurements or numerical simulations. An automatic and unsupervised process of outlier identification can help ...
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Zefeng Xu, Wenkai Huang, Zexuan Li, Linkai Hu and Puwei Lu
The control strategy proposed to this paper can be applied to the joint position and velocity tracking down industrial robots (series or parallel manipulators). Theoretically, it is suitable for general second-order nonlinear systems, such as inverted pe...
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Manuel Lopez-Martin, Antonio Sanchez-Esguevillas, Luis Hernandez-Callejo, Juan Ignacio Arribas and Belen Carro
This work brings together and applies a large representation of the most novel forecasting techniques, with origins and applications in other fields, to the short-term electric load forecasting problem. We present a comparison study between different cla...
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Yadong Zhou, Youchao Sun and Weili Zeng
Because of the light weight and high strength, composite laminates have many advantages in aircraft structures; however, they are frequently subjected to severe dynamic loadings during flight. To understand the dynamic properties of composite laminated t...
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Yuwei Cheng and Qian Chen
Turbulent mixing layers are canonical flow in nature and engineering, and deserve comprehensive studies under various conditions using different methods. In this paper, turbulent mixing layers are investigated using large eddy simulation and dynamic mode...
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