Autor según el artículo: Gorakifard, Mohsen; Saluena, Clara; Cuesta, Ildefonso; Far, Ehsan Kian;

Departamento: Enginyeria Mecànica

Autor/es de la URV: Cuesta Romeo, Ildefonso / Goraki Fard, Mohsen / Salueña Pérez, Clara

Palabras clave: Wind turbines Wind turbine simulation Wind turbine modeling Wind turbine Viscosity Radial point interpolations Parameter dependency Mesh generation Local radial point interpolation methods Local radial point interpolation cumulant lbm Lattice boltzmann methods (lbm) Lattice boltzmann method Kinetic theory Interpolation Dissipation Dispersion Computational efficiency Complex engineering problems Aeroacoustics Acoustic wave propagation Acoustic properties

Resumen: The lattice Boltzmann method (LBM) has recently been used to simulate wave propagation, one of the challenging aspects of wind turbine modeling and simulation. However, standard LB methods suffer from the instability that occurs at low viscosities and from its characteristic lattice uniformity, which results in issues of accuracy and computational efficiency following mesh refinement. The local radial point interpolation cumulant lattice Boltzmann method (LRPIC-LBM) is proposed in this paper to overcome these shortcomings. The LB equation is divided into collision and streaming steps. The collision step is modeled by the cumulant method, one of the stable LB methods at low viscosities. In addition, the streaming step, which is naturally a pure advection equation, is discretized in time and space using the Lax-Wendroff scheme and the local radial point interpolation method (RPIM), a mesh free method. We describe the propagation of planar acoustic waves, including the temporal decay of a standing plane wave and the spatial decay of a planar acoustic pulse. The analysis of these specific benchmark problems has yielded qualitative and quantitative data on acoustic dispersion and dissipation, and their deviation from analytical results demonstrates the accuracy of the method. We found that the LRPIC-LBM replicates the analytical results for different viscosities, and the errors of the fundamental acoustic properties are negligible, even for quite low resolutions. Thus, this method may constitute a useful platform for effectively predicting complex engineering problems such as wind turbine simulations, without parameter dependencies such as the number of points per wavelength Nppw and resolution sigma or the detrimental effect caused by the use of coarse grids found in other accurate and stable LB models.

Áreas temáticas: Zootecnia / recursos pesqueiros Renewable energy, sustainability and the environment Interdisciplinar General computer science Fuel technology Engineering (miscellaneous) Engenharias iv Engenharias iii Engenharias ii Energy engineering and power technology Energy (miscellaneous) Energy & fuels Electrical and electronic engineering Economia Control and optimization Ciências ambientais Ciências agrárias i Ciência da computação Building and construction Biotecnología Biodiversidade Astronomia / física

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

Direcció de correo del autor: mohsen.goraki@urv.cat clara.saluena@urv.cat ildefonso.cuesta@urv.cat

Identificador del autor: 0000-0001-7595-8588 0000-0002-4948-5569

Fecha de alta del registro: 2023-02-19

Volumen de revista: 14

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/1996-1073/14/5/1443

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Energies. 14 (5):

Referencia de l'ítem segons les normes APA: Gorakifard, Mohsen; Saluena, Clara; Cuesta, Ildefonso; Far, Ehsan Kian; (2021). Analysis of Aeroacoustic Properties of the Local Radial Point Interpolation Cumulant Lattice Boltzmann Method. Energies, 14(5), -. DOI: 10.3390/en14051443

DOI del artículo: 10.3390/en14051443

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2021

Tipo de publicación: Journal Publications