## 抄録

There are two types of degrees of freedom of a random process. In this paper two types of characteristic frequency of turbulence were derived from the idea of the degrees of freedom. They were named the first characteristic frequency, K//1, and the second characteristic frequency, K//2. K//1 corresponds to the integral time scale of turbulence and K//2 can be regarded as a randomness factor of turbulence. K//1 and K//2 of the turbulence measured in the center of the canine ascending aorta were discussed. It was shown that K//2 was larger than K//1. It was found that K//2 was well correlated to the reciprocal of Strouhal number, but K//1 was not. So, it is suggested that the randomness of the aortic turbulence depends on the Strouhal number, but the integral time scale of the aortic turbulence does not.

本文言語 | English |
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ページ（範囲） | 158-159 |

ページ数 | 2 |

ジャーナル | japanese journal of medical electronics and biological engineering |

巻 | 22 |

出版ステータス | Published - 1984 4月 1 |

## ASJC Scopus subject areas

- 生体医工学