Abstract
Buoyancy-induced convection in a staggered vertical channel is studied numerically, in order to determine the effect of vertical stagger between the channel walls on the channel heat transfer. Results are compared with the baseline case of an unstaggered vertical channel. It is found that as the vertical stagger is initially increased, channel velocities increase, accompanied by a very small enhancement in heat transfer rate. However, beyond a certain amount of vertical stagger, both the velocities and the heat transfer rate decrease with increasing stagger. At a stagger ratio of 0.5 (i.e., the left channel wall overlaps half the right channel wall), velocities and heat transfer rate are lower than those in an unstaggered channel.
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