... the bypass heating power ratios is 14.4% for Q1 and Q2, 20.8% for Q3 and Q4, and 52% for Q5 and Q6, obtained using both the experimental results and the software program based on VB6.0. Thermal ... the aspect ratio, and b and a are the fin spacing and the fin height, respectively. The pressure drop in the plate heat sink can be divided into two parts: the friction term, and the term due ... fanning-friction factor, Kc and Ke are contraction and expansion pressure loss coefficients, um is the coolant velocity in the channel, and L and Dh are the channel length and hydraulic diameter,...