TY - JOUR TI - Numerical analyses on the prediction of nusselt numbers for upward and downward flows of water in a smooth pipe: effects of buoyancy and property variations AU - Dalkilic, A. AU - Çebi, A. AU - Celen, A. JO - Journal of Thermal Engineering PY - 2019 VL - 5 SP - 166 EP - 180 DO - ER -