...Xiuping Chen; Jiabing Wang; Kun Yang Dimple on the surface is widely used in electronic cooling equipment, turbine blades, and combustion chamber gaskets and so on, which is a good structure for heat transfer enhancement. In this paper, taking comprehensive performance parameters of flow and heat...

...Yonghui Xie; Zhongyang Shen; Di Zhang; Phillip Ligrani Dimple structure is an effective heat transfer augmentation approach on coolant channel due to its advantage on pressure penalty. The implication of secondary protrusion, which indicates protrusion with smaller dimension than dimple...

.... Editor: Phillip M. Ligrani. 01 07 2012 05 01 2013 Based on combined particle image velocimetry (PIV) and numerical simulation, the flow and heat transfer characteristics of a single jet impinging on a dimpled surface for D j / D  = 0.318, 0.5, 1.045; δ/D  = 0.1, 0.2, 0.3; Re j...

... fin-dimple channels are the same. A careful grid independence check has been done for the computations based on the 1# pin fin-dimple channel by considering several grid systems with nodes ranging from 0.61 × 10 6 to 1.18 × 10 6 at the Reynolds numbers of Re = 15,639 (shown in Table 1 ) and 50,500...

...Yu Rao; Yamin Xu; Chaoyi Wan A numerical study was conducted to investigate the effects of dimple depth on the flow and heat transfer characteristics in a pin fin-dimple channel, where dimples are located spanwisely between the pin fins. The study aimed at promoting the understanding...

...Jibing Lan; Yonghui Xie; Di Zhang Flow characteristics and heat transfer performances in a rectangular microchannel with dimples/protrusions are studied numerically in this research. The height and the width of the microchannel is 200 μm and 50 μm, respectively. The dimple/protrusion diameter...