Showing 641 - 660 results of 775 for search '"Numerical analysis"', query time: 0.09s Refine Results
  1. 641

    Application of Extrapolation Capability of Vector Fitting for Out-of-Band Dominant Modal Synthesis of Voltage-Source Converters by Weihua Zhou, Jef Beerten

    Published 2024-01-01
    “…The effects of the pole, residue, and fitting frequency interval width on the sensitivity index are further investigated and demonstrated. The numerical analysis shows that, with the help of the proposed sensitivity index, the extrapolation behavior of the VF can be explained, and several invisible out-of-band modes can further be identified or synthesized from a band-limited frequency response. …”
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  2. 642

    An Evaluation Method for Effective Prestress of Simply Supported Prestressed Concrete Beams with Breathing Cracks by Wenlong Guo, Peng Liang, Hexu Liu, Y. Frank Chen, Xiaojin Zhao

    Published 2021-01-01
    “…The proposed method is verified by laboratory tests on beams and numerical analysis and by addressing effective prestress issues of existing simply supported beams. …”
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    Article
  3. 643

    Investigation of the flow characteristics of slit check dams using novel models by Muhammet Emin Emiroglu, Erdinc Ikinciogullari, Eyyup Ensar Yalcin, Enes Gul

    Published 2024-12-01
    “…Then, the Butterfly model was validated extensively using OpenFOAM (v7) software for the numerical analysis. Finally, the other models were examined numerically using the k-ε turbulence model. …”
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    Article
  4. 644

    Numerical Modeling of Tsunami Waves Interaction with Porous and Impermeable Vertical Barriers by Manuel del Jesus, Javier L. Lara, Inigo J. Losada

    Published 2012-01-01
    “…The equations solved by the model and their numerical implementation are presented here. A numerical analysis of the interaction of a tsunami wave with both an impermeable and porous vertical breakwater is carried out. …”
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    Article
  5. 645
  6. 646

    Cyclone negative pressure pump for efficient purification of airborne contaminants by Gihyun Song, Kyungcheol Jang, Woobin Song, Wonchul Choi, Simon Song, Hyoungsoo Kim

    Published 2025-03-01
    “…Based on the prototype pump, we conducted a numerical analysis to evaluate the particle collection performance of the cyclone pump in various scenarios, including patients covered with contaminants, and coughing or breathing. …”
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    Article
  7. 647

    A Simple Solution for Estimating the Smear Effect Permeability Ratio Using Finite Element Method by Rufaizal Che Mamat, Azuin Ramli, Sri Atmaja P. Rosyidi

    Published 2024-02-01
    “…Incorporating the smear effect into the numerical analysis of vertical drains improved prediction accuracy. …”
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  8. 648

    Design optimization of the podded propulsor considering pod housing drag and propulsion motor performance by Yuhang Zhou, Chengjiang Liu, Yao Yan, Quan Chen, Wenliang Ke

    Published 2025-01-01
    “…This paper presents an optimization methodology that simultaneously improves motor performance and pod housing drag through numerical analysis. The interaction between the motor and pod housing was analyzed, with parametric modeling conducted for both. …”
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  9. 649

    Enhancement of Heat Transfer Using Water/Graphene Nanofluid and the Impact of Passive Techniques—Experimental, Numerical, and ML Approaches by Javed Syed

    Published 2024-12-01
    “…Subsequently, a numerical analysis of the convergent–divergent nozzle insert is conducted using approximately 220 samples for training and testing purposes. …”
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  10. 650

    Inventory and Ordering Decisions in Dual-Channel Supply Chains Involving Free Riding and Consumer Switching Behavior with Supply Chain Financing by Senyu Xu, Huajun Tang, Zhijun Lin

    Published 2021-01-01
    “…In order to achieve the optimal performance in the centralized system, this research designs a partial buyback contract to coordinate the supply chain. Furthermore, numerical analysis is provided to test the feasibility of the model. …”
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    Article
  11. 651

    Study on Seismic Response Characteristics of Shield Tunnel in Soil-Rock Combination Stratum by Guang-Biao Shao, Xi-Sen Fan, Jin-Hua Shang, Li-Xin Lu

    Published 2022-01-01
    “…The seismic response law of tunnel cross-section is studied by the model test and numerical analysis. The results revealed the following: (1) the peak bending moment distribution diagram derived from numerical calculation is consistent with that obtained from the shaking-table model test, which has shown that the numerical and experimental methods are correct, and the research results are available for the seismic resistance of shield tunnels. (2) The deformation, axial force, shear force, and bending moment of the tunnel structure in the soil-rock combination stratum under the action of S-wave change abruptly and significantly at the soil-rock interface section, and the difference in structural stress between the upper and lower sides of the soil-rock interface increased by 65.5%. …”
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  12. 652

    Numerical investigation of the effects of hydrogen/ammonia addition to n-heptane combustion and emissions for a dual injection compression-ignition engine by K. Ghadamkheir, F. Safamanesh, M. Moghiman, M. Hatami

    Published 2025-02-01
    “…The main objective is to predict how substituting a portion of the primary carbon-based fuel with these synthetic fuels affects engine performance and exhaust emissions. Numerical analysis is conducted to evaluate the impact of combustion parameters variation for each simulated fuel condition. …”
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  13. 653

    Multiscale modeling of thermo-hydromechanical behavior of clayey rocks and application to geological disposal of radioactive waste by Jianfu Shao, Zhan Yu, Minh-Ngoc Vu

    Published 2025-01-01
    “…This work is devoted to numerical analysis of thermo-hydromechanical problem and cracking process in saturated porous media in the context of deep geological disposal of radioactive waste. …”
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  14. 654

    Movement Characteristics of Typhoon Rainstorm-Triggered Debris Flow in Qinglong Gully Based on Massflow Model by XIONG Chaozheng, JI Feng, SHI Yuchuan

    Published 2023-01-01
    “…Typhoon Lekima made landfall on August 10,2019,causing a massive typhoon rainstorm-triggered debris flow in Qinglong Gully located in the middle and low mountainous area of southern Anhui.To deeply explore the movement characteristics of the typhoon rainstorm-triggered debris flow,this study identifies the characteristics,formation conditions,and source distribution of Qinglong Gully.On this basis,it builds a high-precision three-dimensional model of the study area to calculate two working conditions of the non-typhoon rainstorm and typhoon rainstorm.In addition,Massflow,the software for surface-process dynamic numerical analysis,is employed for numerical simulation and comparative analysis of debris-flow movement characteristics.The results show that the typhoon rainstorm-triggered debris flow has a faster forward speed compared with the non-typhoon rainstorm-triggered debris flow.It moves to the monitoring points j1—j5 at 600 s,100 s,1500 s,1 600 s,and 1 900 s,respectively,and the front can cause damage to the channels and buildings along the way in a short time.Three main accumulation areas are formed in the outbreak of the debris flow.The maximum accumulation thickness of the typhoon rainstorm-triggered debris flow is 3.08 m,3.80 m,and 7.75 m,and the accumulation area is 36 324.4 m<sup>2</sup>,3 700.4 m<sup>2</sup>,and 32 279.5 m<sup>2</sup>,respectively.The debris flow has the characteristics of a large height and plane range of influence,which is more likely to cause serious life and property damage to engineering buildings and residents.…”
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  15. 655

    Experimental Study and Proposal to Improve the EWM Design of Cold-Formed Steel Lipped Channel Columns with Circular Holes under Axial Compression by Xingyou Yao

    Published 2021-01-01
    “…Furthermore, the proposal to calculate the distortional buckling coefficient of the CFS lipped channel section with circular holes were put forward based on numerical analysis considering the reduction of effect of holes. …”
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  16. 656

    Nonlinear Simulation and Vulnerability Analysis of Masonry Structures Impacted by Flash Floods by Qi Fang, Shuguang Liu, Guihui Zhong, Hong Zhang, Jiyu Liang, Yiwei Zhen

    Published 2021-01-01
    “…This study presented a nonlinear numerical analysis for the interaction between flash floods and masonry structures. …”
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  17. 657

    Project Portfolio Resource Risk Assessment considering Project Interdependency by the Fuzzy Bayesian Network by Libiao Bai, Kaimin Zhang, Huijing Shi, Min An, Xiao Han

    Published 2020-01-01
    “…To reduce the subjectivity of expert judgments, the expert weights are determined by combining experts’ background and reliability degree of expert judgments. A numerical analysis is used to demonstrate the application of the proposed methodology. …”
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  18. 658

    Transformed Calculation Models in Practice of Dynamic Analysis of Fixed Offshore Platform Structures by Valerii I. Sutyrin, Elvira R. Kuzhakhmetova

    Published 2024-12-01
    “…The efficiency of the numerical analysis of the system is increased by constructing a transformed calculation model (TCM). …”
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  19. 659

    Mathematical Modelling of Host-Pest Interaction in the Presence of Insecticides and Resistance: A Case of Fall Armyworm by Moreen Brenda Gatwiri, Marilyn Ronoh, Cyrus Gitonga Ngari, Dominic Makaa Kitavi

    Published 2024-01-01
    “…An expression for the basic reproduction number R0, together with the sensitivity analysis of its parameter values, is provided. Numerical analysis is conducted on various model parameter values. …”
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  20. 660

    Numerical optimization of large-scale monotone equations using the free-derivative spectral conjugate gradient method by Ghulam Abbass, Nek Muhammad Katbar, Israr Ahmed Memon, Haibo Chen, Fikadu Tesgera Tolasa, Gemeda Tolessa Lubo

    Published 2025-01-01
    “…In addition, we performed a comprehensive comparative numerical analysis, benchmarking our method against existing techniques. …”
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