RT Conference Proceedings
T1 Numerical simulation of heat transfer in a pipe with non-homogeneous thermal boundary condition
A1 Antoranz Perales, Antonio
A1 Gonzalo Grande, Alejandro
A1 Flores Arias, Óscar
A1 García-Villalba Navaridas, Manuel
AB Direct numerical simulations of heat transfer in a fully-developed turbulent pipe flow with circumferentially-varying thermal boundary conditions are reported. Three cases have been considered for friction Reynolds number in the range 180–360 and Prandtl number in the range 0.7–4. The temperature statistics under these heating conditions are characterized. Eddy diffusivities and turbulent Prandtl numbers for radial and circumferential directions are evaluated and compared to the values predicted bysimple models. It is found that the usual assumptions made in these models provide reasonable predictions far from the wall and that corrections to the models are needed near the wall.
PB Elsevier
SN 0142-727X
YR 2015
FD 2015-10
LK https://hdl.handle.net/10016/22012
UL https://hdl.handle.net/10016/22012
LA eng
NO O.F. and M.G.-V. were partially supported by Grant TRA2013-41103-P of the Spanish Ministry of Economy and Competitiveness. This grant includes FEDER funding.
DS e-Archivo
RD 18 jul. 2024