Large Eddy Simulation of a jet flow with a suction/ejection system using immersed boundary conditions

• Published in: Journal of wind engineering and industrial aerodynamics Vol. 98; no. 10; pp. 618 - 627
• Main Authors: Salinas-Vázquez, M., Vicente, W., González-Rodríguez, C., Barrios-Bonilla, E., Espinosa-Gayosso, A.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Ltd 01.10.2010; Elsevier
• Subjects: Applied sciences; Atmospheres; Boundary conditions; Buildings. Public works; Climatology and bioclimatics for buildings; Computation methods. Tables. Charts; Ejection; Exact sciences and technology; Immersed boundary conditions; Jet flow; Large eddy simulation; LES; Mathematical models; Optimization; Streams; Structural analysis. Stresses; Suction/ejection system; Wind engineering; Suction/ejection system; Immersed boundary conditions; LES; Suction; Jet flow; Aerodynamics; Boundary condition; Modeling; Statistics; Large eddy simulation; Numerical simulation; Turbulent jet; Comparative study; Ejection
• ISSN: 0167-6105; 1872-8197
• DOI: 10.1016/j.jweia.2010.06.003

In this work, we introduce a numerical study of an upward air stream, in an isothermal atmosphere, moved by a fan. First, the fan pulls air from the surrounding soil surface, sending it to an isothermal atmosphere. The proposed solution is based on high-order schemes, Large Eddy Simulations, such as the turbulence model, and the use of Immersed Boundary Conditions. Finally, modeling of optimal fan operation is proposed in this work, to show the influence of some geometrical parameters on fan performance. The system can work with environmental or closed room flows.