Heat flows spontaneously from the generally cooler heat-source flow into the locally cold portion of the heat-sinkflow, which is the neck of a Venturi.
热量自发地从通常较冷的热源流流动到散热器流的局部寒冷的部分，其是文丘里管的颈部。
2
Heat pumps move heat from a source to a warmer sink, with Bernoulli heat pumps accomplishing this movement by reducing the temperature in a portion of the generally - warmer heat-sinkflow.