Showing 261 - 280 results of 347 for search '"computational fluid dynamics"', query time: 0.06s Refine Results
  1. 261

    A New Coupled CFD/Neutron Kinetics System for High Fidelity Simulations of LWR Core Phenomena: Proof of Concept by Jorge Pérez Mañes, Victor Hugo Sánchez Espinoza, Sergio Chiva, Robert Stieglitz

    Published 2014-01-01
    “…By applying codes like CFD (computational fluid dynamics) and SP3 (simplified transport) reactor dynamics it is possible to describe the underlying phenomena in a more accurate manner than by the nodal/coarse 1D thermal hydraulic coupled codes. …”
    Get full text
    Article
  2. 262

    A Comparative Study of Impeller Modification Techniques on the Performance of the Pump as a Turbine by Abdulbasit Nasir, Edessa Dribssa, Misrak Girma, Tamerat Demeke

    Published 2022-01-01
    “…In this paper, the performance of the PAT is analyzed using the computational fluid dynamics (CFD) software called Ansys CFX in conjunction with standard k-ε. …”
    Get full text
    Article
  3. 263

    Exhaled Jet and Viral-Laden Aerosol Transport from Nasal Sneezing by Hana Salati, David F. Fletcher, Mehrdad Khamooshi, Jingliang Dong, Kazuhide Ito, Sara Vahaji, Kiao Inthavong

    Published 2022-03-01
    “…This study used computational fluid dynamics consisting of a hybrid RANS-LES turbulence method to model the airflow and the discrete phase model to track aerosol dispersion during nasal sneezing. …”
    Get full text
    Article
  4. 264

    Multiobjective Optimization Design and Performance Prediction of Centrifugal Pump Based on Orthogonal Test by Yuqin Wang, Xinwang Huo

    Published 2018-01-01
    “…Based on the L1644 orthogonal table, 16 sets of orthogonal test schemes were made by selecting the four parameters impeller outlet width, blade inlet angle, blade outlet angle, and cape angle; the flow field numerical simulation was carried out by computational fluid dynamics technique; and the influence order of geometric parameters on optimization indexes was obtained by range analysis. …”
    Get full text
    Article
  5. 265

    Application of coupled CFD-DEM modelling in erosion study of cohesive materials: A case study of rotating finger test by Mohsen Rahimi-Larki, Burhanuddin, Sandra Vollmann, Shengli Jin, Harald Harmuth

    Published 2025-03-01
    “…This study introduces a coupled computational fluid dynamics (CFD) and discrete element method (DEM) approach to quantitatively assess the flow-induced erosion of cohesive materials. …”
    Get full text
    Article
  6. 266

    Migration Law and Influence of Proppant in Segmented Multicluster Fracturing Wellbore of Deep Shale Horizontal Well by Tingxue Jiang, Haitao Wang, Juanming Wei, Guanyu Zhong, Yucheng Zhao, Yushi Zou

    Published 2022-01-01
    “…In order to deeply analyze the influence mechanism and law of proppant flow in the wellbore on multiple fractures and propagation, Firstly, based on the theoretical knowledge of computational fluid dynamics (CFD), a numerical model of solid-liquid two-phase flow of proppant migration in horizontal wellbore is established, which is calculated and solved by using the Euler-Euler multiphase-flow mixture model, and the effects of different influencing factors on the migration and distribution of proppant in wellbore are studied. …”
    Get full text
    Article
  7. 267

    Collaborative Optimization of Aerodynamics and Wind Turbine Blades by Fushan He, Xingsheng Zheng, Weilin Luo, Jianfeng Zhong, Yunhua Huang, Aili Ye, Rongrong Qiu, Huafu Ma

    Published 2025-01-01
    “…The Wilson method is employed to obtain the aerodynamic shape of the blade. Computational fluid dynamics numerical simulation is performed to analyze the aerodynamics of the blade. …”
    Get full text
    Article
  8. 268

    A Novel Multi-Fidelity Support Vector Classification Method for Boundary Prediction in Engineering Applications by Jinliang Luo, Lingzhi Liu, Youwei He, Kuan Tan

    Published 2025-01-01
    “…To validate our method, we applied it to three distinct engineering problems: predicting the failure boundary of a zero Poisson ratio structure, analyzing surge and choke boundaries in an axial flow compressor rotor, and tackling a 31-dimensional simulation failure boundary prediction problem within the computational fluid dynamics context of the same rotor. The results demonstrate that our multi-fidelity support vector classification method not only effectively predicts boundaries in these practical scenarios but also outperforms alternative methods, showing its potential as a powerful tool for engineers.…”
    Get full text
    Article
  9. 269

    Numerical investigation of segmental baffle design in shell and tube heat exchangers with varying inclination angles and spacing by A. M. Mohammadzadeh, Bahram Jafari, Khashayar Hosseinzadeh, E. Paikar

    Published 2025-02-01
    “…This research uses a three-dimensional computational fluid dynamics (CFD) simulation to model turbulent fluid flow and evaluate the performance of different baffle angle configurations. …”
    Get full text
    Article
  10. 270

    Winglet Design for Aerodynamic and Performance Optimization of UAVs via Surrogate Modeling by Eleftherios Nikolaou, Spyridon Kilimtzidis, Vassilis Kostopoulos

    Published 2025-01-01
    “…Using surrogate-based optimization (SBO) techniques, this research developed winglet geometries with varying geometric parameters such as length, cant angle, and sweep angle with their performance being evaluated through high-fidelity Computational Fluid Dynamics (CFD) simulations. These simulations utilized Reynolds-Averaged Navier–Stokes (RANS) equations coupled with the Spalart–Allmaras turbulence model to capture the intricate flow dynamics around the UAV in different flight phases. …”
    Get full text
    Article
  11. 271

    Heat Transfer Enhancement of Laminar Nanofluids Flow in a Circular Tube Fitted with Parabolic-Cut Twisted Tape Inserts by Sami D. Salman, Abdul Amir H. Kadhum, Mohd S. Takriff, Abu Bakar Mohamad

    Published 2014-01-01
    “…Numerical investigation has been carried out on heat transfer and friction factor characteristics of copper-water nanofluid flow in a constant heat-fluxed tube with the existence of new configuration of vortex generator using Computational Fluid Dynamics (CFD) simulation. Two types of swirl flow generator: Classical twisted tape (CTT) and Parabolic-cut twisted tape (PCT) with a different twist ratio (y = 2.93, 3.91 and 4.89) and different cut depth (w = 0.5, 1.0 and 1.5 cm) with 2% and 4% volume concentration of CuO nanofluid were used for simulation. …”
    Get full text
    Article
  12. 272

    An Overview of Experiments and Numerical Simulations on Airflow and Aerosols Deposition in Human Airways and the Role of Bioaerosol Motion in COVID-19 Transmission by Justus Kavita Mutuku, Wen-Che Hou, Wei-Hsin Chen

    Published 2020-05-01
    “…Herein, in-depth information on in vitro experiments and state-of-the-art review on various computational fluid dynamics (CFD) applications and finite element methods on airflow and aerosol motion in both healthy and obstructed human airways are provided. …”
    Get full text
    Article
  13. 273

    Hydrodynamics of flow through living shoreline structure by Tanhaseng Kanyarat, Kositgittiwong Duangrudee, Ekkawatpanit Chaiwat, Kompor Wongnarin, Petpongpan Chanchai

    Published 2025-01-01
    “…The study also explored a zig-zag formation using 3D computational fluid dynamics (CFD) with the RNG k-ε turbulence model, offering detailed insights into the flow behavior around the structures. …”
    Get full text
    Article
  14. 274

    Experimental and CFD Investigation on Flow Behaviors of a NPP Pump under Natural Circulation Condition by Weitong Li, Lei Yu, Jianli Hao, Mingrui Li

    Published 2019-01-01
    “…Considering that the flow behaviors of stopped pump pose a significant effect on natural circulation, both experimental and computational fluid dynamics (CFD) methods were performed to investigate the flow behaviors of a NPP centrifugal pump under natural circulation condition with a low flow rate. …”
    Get full text
    Article
  15. 275

    Multiscale Thermal Hydraulic Study under the Inadvertent Safety Injection System Operation Scenario of Typical Pressurized Water Reactor by Mingjun Wang, Qiaolin Zuo, Hao Yu, Wenxi Tian, G. H. Su, Suizheng Qiu

    Published 2017-01-01
    “…Then, the inadvertent Safety Injection System operation scenario was simulated using RELAP5 code, providing the boundary conditions for three-dimensional Computational Fluid Dynamics (CFD) analysis. The fluid and solid coupling heat transfer simulation method was employed. …”
    Get full text
    Article
  16. 276

    The Sub 2-h Official Marathon is Possible: Developing a Drafting Strategy for a Historic Breakthrough in Sports by G. D. Fernandes, Nazir Laureano Gandur, Dioser Santos, Victor Maldonado

    Published 2025-01-01
    “…Results In this study, the drag of a realistic model of a male runner is calculated by computational fluid dynamics for a range of velocities. The formations employed in the past by Kipchoge, as well as alternative formations, are analyzed and systematically compared with respect to mechanical power. …”
    Get full text
    Article
  17. 277

    Effect of Pressure Equalization Groove Structure on Static Characteristics of Aerostatic Bearings by C. Yuanqi, X. Yaping, L. Weining, G. Ning

    Published 2025-02-01
    “…In order to improve the load capacity and stiffness, the pressure-equalizing groove is introduced into the structure of aerostatic bearing, which can optimize the mechanics characteristics. A Computational Fluid Dynamics (CFD) simulation of bearing with gas-lubricant is developed. …”
    Get full text
    Article
  18. 278

    Analysis of the Effectiveness of Arytenoidectomy and Posterior Cordectomy with the Use of CFD Airflow Measurements in Patients with BVFP: A Retrospective Study by Marta Gamrot-Wrzoł, Magdalena Marków, Daniel Janecki, Bogusława Orecka, Krzysztof Warmuziński, Maciej Misiołek

    Published 2022-01-01
    “…The aim of the study is to determine the effectiveness of unilateral arytenoidectomy with posterior cordectomy in the treatment of BVFP using the computational fluid dynamics (CFD) method. Methods. This study included 33 patients with BVFP who underwent unilateral laser arytenoidectomy with posterior cordectomy. …”
    Get full text
    Article
  19. 279

    Optimizing the Aerodynamic Performance of a Duct–Rotor System for Drones: A Comprehensive Study on the Coupled Parameters by Wei Wei, Shiyi Wei, Zhifang Ke, Meng Guo, Yongjie Shu, Qingkai Meng, Leilei Jia, Maofeng Zhang, Shurui Han

    Published 2025-01-01
    “…This study employs a Computational Fluid Dynamics numerical analysis to investigate the aerodynamic performance of the duct–rotor, focusing on coupled parameters related to the rotor blade’s relative position and tip gap. …”
    Get full text
    Article
  20. 280

    Multi-objective optimization of kitchen comfort based on arithmetic superposition index P by Shunyu Zhang, Xiangrui Zhao, Liangguo Cheng, Zhihang Shen, Zhenlei Chen

    Published 2025-02-01
    “…This study adopts a combination of orthogonal experiments and computational fluid dynamics (CFD) simulations to study the exhaust characteristics of range hoods under different structural parameters and compares and analyzes the rationality and effectiveness of different auxiliary ventilation methods in kitchen ventilation systems to propose the optimal solution. …”
    Get full text
    Article