These dramatic curlicues were generated by a computer simulation of the motion of a small body - in this case a flat , rigid plate - through an incompressible fluid , such as water or , in some conditions , air .

这些夸张的“人脸”是在用计算机模拟小物体移动过程中产生的图中所示为一个刚性板通过不可压缩流体，如水，或某些情况下的空气产生的移动。