<p>Due to the Coriolis force induced by rotation, the heat transfer level is weakened on one side and enhanced on the other side in the conventional internal cooling channels of turbine blades. The phenomenon causes the side with weakened heat transfer to face higher thermal loads as the rotation speed increases. To simultaneously improve the heat transfer on both the pressure and suction surfaces by effectively leveraging the Coriolis force, a Bifacial-enhanced V-ribbed channel is proposed. The 45° V-shaped ribs are arranged on the pressure side (PS) and suction side (SS) of a U channel with an orientation angle of 90° with respect to the rotation shaft. Transient liquid crystal experiments and Reynolds-Averaged Navier-Stokes simulations are employed to analyze the channel’s flow and heat transfer characteristics, at a Reynolds number of 18 000 and a Rotation number (<i>Ro</i>) ranging from 0 to 0.036. The results show that in the Bifacial-enhanced V-ribbed channel, the rotation Coriolis force directs the cooling fluid toward the PS and SS, synergizing with the rib-induced secondary flow to enhance heat transfer on both surfaces. Additionally, rotation mitigates the impact and separation at the bend area, thereby reducing the channel pressure loss within a certain range of rotation speed. Compared to the condition at <i>Ro</i> of 0, the overall cooling performance improves by 9.4% to 21.4% at <i>Ro</i> ranging from 0.012 to 0.036. The Bifacial-enhanced V-ribbed channel effectively improves the full-surface cooling performance of blades as the rotation speed increases, demonstrating significant potential for internal cooling applications in turbine blades.</p>