TY - JOUR
TI - The fractal harmonic law and its application to swimming suit
AU - Kong Hai-Yan
AU - He Ji-Huan
JN - Thermal Science
PY - 2012
VL - 16
IS - 5
SP - 1467
EP - 1471
PT - Article
AB - Decreasing friction force between a swimming suit and water is the key factor  to design swimming suits. Water continuum mechanics forbids discontinuous  fluids, but in angstrom scale water is indeed discontinuous. Swimming suit is  smooth on large scale, but it is discontinuous when the scale becomes  smaller. If fractal dimensions of swimming suit and water are the same, a  minimum of friction force is predicted, which means fractal harmonization. In  the paper, fractal harmonic law is introduced to design a swimsuit whose  surface fractal dimensions on a macroscopic scale should be equal to or  closed to the water's fractal dimensions on an Angstrom scale. Various  possible microstructures of fabric are analyzed and a method to obtain  perfect fractal structure of fabric is proposed by spraying nanofibers to its  surface. The fractal harmonic law can be used to design a moving surface with  a minimal friction.