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Relevant bibliographies by topics / RANS solver Development

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Journal articles

Academic literature on the topic 'RANS solver Development'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "RANS solver Development"

1

Xiao, Yinli, Zupeng Wang, Zhengxin Lai, and Wenyan Song. "Modeling of Spray Combustion with a Steady Laminar Flamelet Model in an Aeroengine Combustion Chamber Based on OpenFOAM." International Journal of Aerospace Engineering 2018 (2018): 1–13. http://dx.doi.org/10.1155/2018/7329564.

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The development of high-performance aeroengine combustion chambers strongly depends on the accuracy and reliability of efficient numerical models. In the present work, a reacting solver with a steady laminar flamelet model and spray model has been developed in OpenFOAM and the solver details are presented. The solver is firstly validated by Sandia/ETH-Zurich flames. Furthermore, it is used to simulate nonpremixed kerosene/air spray combustion in an aeroengine combustion chamber with the RANS method. A comparison with available experimental data shows good agreement and validates the capability

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2

Frey Marioni, Yuri, Enrique Alvarez de Toledo Ortiz, Andrea Cassinelli, Francesco Montomoli, Paolo Adami, and Raul Vazquez. "A Machine Learning Approach to Improve Turbulence Modelling from DNS Data Using Neural Networks." International Journal of Turbomachinery, Propulsion and Power 6, no. 2 (2021): 17. http://dx.doi.org/10.3390/ijtpp6020017.

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In this paper, we investigate the feasibility of using DNS data and machine learning algorithms to assist RANS turbulence model development. High-fidelity DNS data are generated with the incompressible Navier–Stokes solver implemented in the spectral/hp element software framework Nektar++. Two test cases are considered: a turbulent channel flow and a stationary serpentine passage, representative of internal turbo-machinery cooling flow. The Python framework TensorFlow is chosen to train neural networks in order to address the known limitations of the Boussinesq approximation and a clustering b

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3

Feng, Xing, and Wanqing Wu. "Generation of Water Waves Using Momentum Source Wave-Maker Applied to a RANS Solver." Mathematical Problems in Engineering 2019 (May 5, 2019): 1–11. http://dx.doi.org/10.1155/2019/1308960.

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Nowadays, as the development of Computational Fluid Dynamics (CFD) and the numerical wave tank (NWT) has advanced, numerical analysis has become increasingly useful and powerful for the ship designing and ship hydrodynamics. In this study, a momentum source wave-maker and an analytical relaxation wave absorber were embedded into 2D RANS equation model with RSM turbulence closure scheme to establish the NWT for ship designing and hydrodynamics. The VOF (volume-of-fluid) method was applied to accurately capture the water free surface. The body force-weighted scheme is chosen for pressure interpo

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4

Han, Han, Zifei Yin, Yijun Ning, and Hong Liu. "Development of a 3D Eulerian/Lagrangian Aircraft Icing Simulation Solver Based on OpenFOAM." Entropy 24, no. 10 (2022): 1365. http://dx.doi.org/10.3390/e24101365.

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A 3D icing simulation code is developed in the open-source CFD toolbox OpenFOAM. A hybrid Cartesian/body-fitted meshing method is used to generate high-quality meshes around complex ice shapes. Steady-state 3D Reynolds-averaged Navier-Stokes (RANS) equations are solved to provide the ensemble-averaged flow around the airfoil. Considering the multi-scale nature of droplet size distribution, and more importantly, to represent the less uniform nature of the Super-cooled Large Droplets (SLD), two droplet tracking methods are realized: the Eulerian method is used to track the small-size droplets (b

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5

Bradstock, Philip, and Wolfgang Schlez. "Theory and verification of a new 3D RANS wake model." Wind Energy Science 5, no. 4 (2020): 1425–34. http://dx.doi.org/10.5194/wes-5-1425-2020.

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Abstract. This paper details the background to the WakeBlaster model: a purpose-built, parabolic three-dimensional RANS solver, developed by ProPlanEn. WakeBlaster is a field model, rather than a single turbine model; it therefore eliminates the need for an empirical wake superposition model. It belongs to a class of very fast (a few core seconds, per flow case) mid-fidelity models, which are designed for industrial application in wind farm design, operation, and control. The domain is a three-dimensional structured grid, a node spacing of a tenth of a rotor diameter, by default. WakeBlaster u

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6

Liu, Junwei, Shuiyue Chen, Xin Li, and Zuodong Liang. "Three-Dimensional Modelling of Non-Linear Wave-Induced Seabed Response around Offshore Open-Ended Pile." Journal of Marine Science and Engineering 9, no. 11 (2021): 1238. http://dx.doi.org/10.3390/jmse9111238.

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This paper analyses the fluid–seabed–structure interactions (FSSI) around the open-ended pile by applying the in-house solver established on the open-source Computational Fluid Dynamics (CFD) platform. The Reynolds-averaged Navier–Stokes (RANS) equations are solved to simulate the hydrodynamic interactions between waves and open-ended piles. Biot’s poro-elastic theory (quasi-static model) is used to reproduce the wave-induced seabed responses. The parameter analysis indicates that the wave period, degree of saturation of seabed and pile diameter have a great influence on the development of the

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7

Prospathopoulos, John, and Spyros G. Voutsinas. "Implementation Issues in 3D Wind Flow Predictions Over Complex Terrain." Journal of Solar Energy Engineering 128, no. 4 (2006): 539–53. http://dx.doi.org/10.1115/1.2346702.

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Practical aspects concerning the use of 3D Navier-Stokes solvers as prediction tools for micro-siting of wind energy installations are considered. Micro-siting is an important issue for a successful application of wind energy in sites of complex terrain. There is a constantly increasing interest in using mean wind flow predictions based on Reynolds averaged Navier-Stokes (RANS) solvers in order to minimize the number of required field measurements. In this connection, certain numerical aspects, such as the extent of the numerical flow domain, the choice of the appropriate inflow boundary condi

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8

Tahara, Y., F. Stern, and Y. Himeno. "Computational Fluid Dynamics–Based Optimization of a Surface Combatant." Journal of Ship Research 48, no. 04 (2004): 273–87. http://dx.doi.org/10.5957/jsr.2004.48.4.273.

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Computational fluid dynamics (CFD)-based optimization of a surface combatant is presented with the following main objectives:development of a high-performance optimization module for a Reynolds averaged Navier-Stokes (RANS) solver for with-free-surface condition; anddemonstration of the capability of the optimization method for flow- and wave-field optimization of the Model 5415 hull form. The optimization module is based on extension of successive quadratic programming (SQP) for higher-performance optimization method by introduction of parallel computing architecture, that is, message passing

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9

Tahara, Yusuke, Koji Norisada, Michitaka Yamane, and Tomohiro Takai. "Development and Demonstration of CAD/CFD/Optimizer Integrated Simulation-Based Design Framework by Using High-Fidelity Viscous Free-Surface RaNS Equation Solver." Journal of the Japan Society of Naval Architects and Ocean Engineers 7 (2008): 171–84. http://dx.doi.org/10.2534/jjasnaoe.7.171.

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10

Masoomi, Mobin, Mahdi Yousefifard, and Amir Mosavi. "Efficiency Assessment of an Amended Oscillating Water Column Using OpenFOAM." Sustainability 13, no. 10 (2021): 5633. http://dx.doi.org/10.3390/su13105633.

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Oscillating water column (OWC) is an advanced form of wave energy converter (WEC). This study aims at improving the efficiency of an amended OWC through a novel methodology for simulating several vertical plates within the chamber. This paper provides a numerical investigation considering one, two, three, and four vertical plates. The open field operation and manipulation (OpenFOAM) solver is verified based on the Reynolds-Averaged Navier–Stokes (RANS) equation. Results show the number and the position of plates where the convertor’s efficiency improves. The work undertaken here also revealed

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