RT Journal Article ID 2ee1fe4120b6223e A1 Meng, Ji-An A1 Liang, Xingang A1 Li, Zhi-Xin A1 Guo, Zeng-Yuan T1 Numerical Study on Low Reynolds Number Convection in Alternate Elliptical Axis Tube JF Journal of Enhanced Heat Transfer JO JEH(T) YR 2004 FD 2004-11-04 VO 11 IS 4 SP 307 OP 314 AB This work numerically investigates the convection of the novel alternate elliptical axis tube by FLUENT 6.0 with laminar, Reynolds stress, and RNG k-ε models. The Nusselt numbers are found to be increased 100−500% for Re=500−2300 with low cost in resistance increase. The enhancement is due to the multi-longitudinal vortices. The comparison with experiments for Re = 500−10,000 shows that the Nusselt number obtained from different models all agree well with experiments. As for the resistance coefficient prediction, the Reynolds stress model is very close to the experiments for Re = 500−2500, and the RNG k-ε model is very close to experiments for Re < 4000. PB Begell House LK https://www.dl.begellhouse.com/journals/4c8f5faa331b09ea,581546c36af6515a,2ee1fe4120b6223e.html