Investigation of the particle size influence over the behavior of aerosol free jets based on CFD-Eulerian simulations / Investigação da influência do tamanho da partícula sobre o comportamento de jatos livres de aerossol baseada em simulações de CFD Euleriano

• Autor(a) principal: Kranzfeld, Leonardo da Silva
• Data de Publicação: 2020
• Outros Autores: Mitre, João Felipe, Nichele, Jakler
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Veras
• Texto Completo: https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/13926
• topic: Dispersions; Aerosol jets; Computational fluid dynamics; Eulerian

This paper proposes general conditions for the simulation of aerosol jet in the air based on the Eulerian approach. The effect of the particle diameter on the dispersion was investigated. The particle velocity profiles obtained were similar to the air velocity in one-phase jets for the dilute dispersions. Along the transversal axis of the jet, the particle velocity profile assumes the gaussian form as well as the particle concentration in the centerline of the jet. On the other hand, along the longitudinal axis, the particle velocity profile is inversely proportional to the distance of the ejection point and the particle concentration has a quasi-linear behavior. Besides, the particle diameter influences the mixture behavior as the Stokes number increases. This work concludes that the Eulerian-Eulerian method is especially useful to describe aerosol jet behavior.