Large Eddy Simulation (LES) Aplicado a un lecho fluidizado gas – sólido. Parte I: Reactor a escala de laboratorio

  • Germán González Silva Universidad Industrial de Santander
  • Natalia Prieto Universidade Estadual de Campinas
  • Iván Mercado Universidad del Atlántico

Resumen

Los reactores de lecho fluidizado son equipos utilizados en la industria de hidrocarburos, para procesos heterogéneos gas-sólido, tanto catalíticos como no catalíticos. Las aplicaciones industriales más importantes incluyen el cracking catalítico, combustión y/o gasificación de carbón, biomasa y residuos sólidos, entre otros. En este trabajo se estudia el comportamiento fluidodinámico gas-solido, usando técnicas computaciones de Dinámica de Fluidos (CFD) en un lecho fluidizado a nivel laboratorio de 1 m de longitud y 5 cm de altura de lecho, se implementó la metodología de Large Eddy simulation (LES) y mallas casi-uniformes construidas previo cálculo de las micro escalas turbulentas. Las simulaciones fueron validadas con datos de la literatura, logrando describir el comportamiento de descenso de partículas (annulus) , sin necesidad de refinamiento cerca de la pared y mejorando el tiempo de computo en comparaciones con simulaciones realizadas usando RANS.

Palabras clave: Flujo multifásico, CFD, fluidización, LES, RANS

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Publicado
2017-12-05
Cómo citar
GONZÁLEZ SILVA, Germán; PRIETO, Natalia; MERCADO, Iván. Large Eddy Simulation (LES) Aplicado a un lecho fluidizado gas – sólido. Parte I: Reactor a escala de laboratorio. Revista UIS Ingenierías, [S.l.], v. 17, n. 1, p. 93-104, dic. 2017. ISSN 2145-8456. Disponible en: <http://revistas.uis.edu.co/index.php/revistauisingenierias/article/view/7619>. Fecha de acceso: 17 dic. 2017