RT Journal Article ID 06f9ec8c37628dc1 A1 Li, Shian A1 Xie, Gongnan A1 Zhang, Weihong A1 Sunden, Bengt T1 NUMERICAL PREDICTIONS OF PRESSURE DROP AND HEAT TRANSFER IN A BLADE INTERNAL COOLING PASSAGE WITH CONTINUOUS/TRUNCATED RIBS JF Heat Transfer Research JO HTR YR 2012 FD 2012-12-20 VO 43 IS 6 SP 573 OP 590 K1 heat transfer K1 rib K1 continuous K1 truncated K1 computation AB Ribs are often used in the mid-section of internal turbine blades to augment heat transfer from the blade wall to a coolant, but most research works are concerned only with continuous ribs attached to the side walls. In this paper, a turbulent flow and heat transfer of a rectangular passage with continuous and truncated ribs on opposite walls have been predicted numerically. Two types of ribs are studied: 90-deg ribs and 45-deg V-shaped ribs. The inlet Reynolds numbers range from 12,000 to 60,000. The complex three-dimensional turbulent flows inside the blade internal coolant passage and heat transfer between the rib-walls and side-walls are presented. The overall performances of six different ribbed passages are evaluated and compared. Numerical results show that the passage with truncated V-shaped ribs is very effective in improving the heat transfer performance with a low pressure drop. PB Begell House LK https://www.dl.begellhouse.com/journals/46784ef93dddff27,4bd3f39072fbf393,06f9ec8c37628dc1.html