Hua Sheng Wang

TL;DR: In this paper, a numerical investigation has been carried out to examine the characteristics of laminar flow and heat transfer in micro-channel heat sink with offset ribs on sidewalls, and five different shapes of offset ribs are designed, including rectangular, backward triangular, isosceles triangular, forward triangular and semicircular.

TL;DR: In this article, a theoretical model to predict condensation heat transfer from a vapor flowing in horizontal square and equilateral triangular section minichannels or microchannels is presented, based on fundamental analysis which assumes laminar condensate flow on the channel walls.

TL;DR: In this article, a three-dimensional numerical model has been conducted to study the heat transfer characteristics of laminar flow in micro-channel heat sinks with different geometric fan-shaped ribs on sidewalls for Reynolds number ranging from 187 to 715.

TL;DR: In this article, the effect of channel shape on condensation of R134a in channels with cross sections was investigated for one vapor mass flux, one vapor temperature and one wall temperature, where the channel wall temperature is uniform and the vapor is saturated at inlet.

TL;DR: In this paper, a theoretical model for condensation in microchannels is presented, which takes account of the effects of gravity and streamwise shear stress on the condensate surface as well as the transverse pressure gradient due to surface tension in the presence of change in condensates surface curvature.