On the validity of the Boussinesq approximation in a tall differentially heated cavity with water
Tipus de documentText en actes de congrés
Condicions d'accésAccés obert
In the present work, the fluid flow and heat transfer inside an integrated solar collector installed on an advanced fac¸ade are investigated. According to Gray and Giorgini , the use of the Boussinesq approximation can be considered valid for variations of thermosphysical properties up to 10 % with respect to the mean value. In the configuration under study, there is a variation of about 20 % in the dynamic viscosity and 15 % in the thermal expansion coefficient. Thus, the main objective of this work is to analyse the validity of the Boussinesq approximation for the turbulent natural convection flow of water in a rectangular parallelepiped tank. The significance of the Boussinesq effects is studied comparatively by means of detailed DNS simulations.
CitacióKizildag, D.; Rodriguez, I.; Oliva, A. On the validity of the Boussinesq approximation in a tall differentially heated cavity with water. A: International Conference on Computational Heat and Mass Transfer. "7th International Conference on Computational Heat and Mass Transfer". Istanbul: 2011, p. 1-7.
Versió de l'editorhttp://icchmt.com/