Abstract
This paper describes the effect of the ration of the diameter and the length for thermal performance on natural convection in circle tube using numerical analysis. The velocity, pressure and temperature distributions are obtained by SIMPLE algorithm. The buoyant term is applied by Boussinesq approximations. The numerical conditions of tube diameter are 10, 15, 20 and 25mm, and tube length is L=1500mm. The inclined angle of the tube is 30 degree. The working fluid is water. Results show that the average velocity along the flow direction increases linearly with Grashof number Gr. However, the pressure drop decreases with Gr increasing. Also, the amount of heat removable increases with Gr.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
