@article{oai:jaxa.repo.nii.ac.jp:00033410, author = {巽, 友正 and 池田, 紀人 and Tatsumi, Tomomasa and Ikeda, Norito}, issue = {特別}, journal = {東京大学宇宙航空研究所報告}, month = {Dec}, note = {会議情報: 第8回電磁流体力学シンポジウム, 1966年2月24日-25日, 東京大学宇宙航空研究所, The H function of turbulence which represents the randomness of turbulence is defined in terms of the probability distribution of turbulent variables. The time derivative of the H function is calculated for turbulences both in incompressible viscous fluid and collisionless plasma. It is found that the H function of turbulence increases monotonically in time for incompressible viscous fluid and stays constant for collisionless plasma. This conclusion may be interpreted as follows : the randomness of turbulence is not increased in time although turbulent fields usually become more and more complicated in time., 資料番号: SA0200183000}, pages = {73--78}, title = {乱れのH関数}, volume = {2}, year = {1966} }