Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
A model for unsteady turbulent friction in pipe flows
Submission Author:
DOUGLAS MONTEIRO ANDRADE , RJ , Brazil
Co-Authors:
DOUGLAS MONTEIRO ANDRADE, Felipe Bastos de Freitas Rachid
Presenter: DOUGLAS MONTEIRO ANDRADE
doi://10.26678/ABCM.ENCIT2018.CIT18-0018
Abstract
This work presents a one-dimensional model for frequency-dependent friction for turbulent flows in deformable pipes. This model is derived by employing a virtual structured mixture model for the fluid, which is formed by n constituents obeying the same equations of state. Constitutive Constants of the fluid that form a crucial part of the friction is easily calculated in a thermo-mechanical consistent basis. A comparison with experimental data showed good agreement and uphold this model to real-time applications of any type of fluid transients in enclosed pipes.
Keywords
unsteady friction, fluid transients in pipes, turbulent flows
