Wavy adjacent passage heat exchanger core

A core section of a heat exchanger includes a plurality of first fluid passages through which a first fluid flows; and a plurality of second fluid passages through which a second fluid flows to exchange thermal energy with the first fluid. The plurality of first fluid passages and the plurality of second fluid passages extend non-linearly along a length of the first fluid passages and the second fluid passages between a first core end and a second core end opposite the first core end. The first fluid passage and the second fluid passage have geometries formed to maximize a major heat transfer area. 一种热交换器的芯部段包括多个第一流体通路，第一流体流过所述多个第一流体通路；以及多个第二流体通路，第二流体流过所述多个第二流体通路以与所述第一流体交换热能。所述多个第一流体通路和所述多个第二流体通路在第一芯端和与所述第一芯端相对的第二芯端之间沿着所述第一流体通路和所述第二流体通路的长度非线性地延伸。所述第一流体通路和所述第二流体通路具有形成为使主要热传递面积最大化的几何形状。