Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
A NUMERICAL STUDY OF CONVECTION FLOW IN AN OPEN WATER CAVITY
Submission Author:
Paulo Cesar Mioralli , SP
Co-Authors:
Elson Avallone, Vicente Luiz Scalon, Alcides Padilha
Presenter: Paulo Cesar Mioralli
doi://10.26678/ABCM.ENCIT2016.CIT2016-0128
Abstract
The development of new technologies of solar energy and its optimization necessarily involves studying the behavior of the energy stored inside the thermal reservoir. A simple way to estimate this behavior is through the analysis of a flow in a cavity with different inlet and outlet of the mass flow. In this study was analized water flow inside the cavity with two openings. The numerical simulation was performed using the computer package open source OpenFOAM®, considering a two-dimensional flow. Simulations were performed considering the effects of the flow field forces and excluding these effects, represented by Richardson Number. The results obtained for the velocity and temperature profiles in the tested cases were presented and the influence of the field forces on the thermal stratification of the water was observed. The results obtained allow to evaluate the influence of the parameters velocity and temperature for the characterization of the obtained thermal stratification inside the solar heater reservoir.
Keywords
Thermal Energy, Ventilated cavity, Computational Fluid Dynamics
