DEGREE OF FREEDOM AND RANDOMNESS OF AORTIC TURBULENCE.

Sho Kikkawa, Masayuki Ishida, Akinori Watanabe, Takami Yamaguchi, Motoaki Sugawara

研究成果: Conference article

抜粋

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.

元の言語English
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
22
出版物ステータスPublished - 1984 4 1

ASJC Scopus subject areas

  • Biomedical Engineering

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  • これを引用

    Kikkawa, S., Ishida, M., Watanabe, A., Yamaguchi, T., & Sugawara, M. (1984). DEGREE OF FREEDOM AND RANDOMNESS OF AORTIC TURBULENCE. japanese journal of medical electronics and biological engineering, 22, 158-159.