Open AccessOptimization of Fluent Turbulence Models for Annular Diffuser
Author(s) -
Nagendra K. Sharma
Publication year - 2020
Publication title -
international journal of modern trends in science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-3778
DOI - 10.46501/ijmtst060614
Subject(s) - diffuser (optics) , turbulence , mechanics , computational fluid dynamics , turbulence kinetic energy , flow (mathematics) , fluent , kinetic energy , diffusion , energy (signal processing) , mechanical engineering , materials science , physics , engineering , thermodynamics , classical mechanics , optics , light source , quantum mechanics
A diffuser is a mechanical device used for converting the kinetic energy of flowing fluid into pressureenergy. As the flow advances through the diffuser there is ongoing retardation of the flow resulting inconversion of kinetic energy into pressure energy. This is known as diffusion. Diffuser constitutes anessential part in turbo machinery and engineering structures. The present study aims at CFD analysis for theprediction of flow characteristics using various mathematical models. The annular diffuser considered in thepresent case has both the hub and casings are diverging with equal angles and hub angle keeping constantas 10°. The characteristic quantity such as velocity profiles at various sections and flow patterns have beenpresented for studying. Standard turbulence models are studied in the present study.