The author studied the mechanisms of the Robinson Cup Anemometer and Helicoid Anemometer hydrodynamically. The Robincon factor and Anemometer factor, say, are expressed as a function of the velocity of wind. The rotating velocities of blades of both anemometers are found to be proportional to the velocity of wind as long as the velocity of wind is moderate.
The length of the manuscripts should not exceed 18,000 words for an Article and 4,500 words for Notes and Correspondence (approximately 60 and 15 double-spaced pages formatted using the JMSJ Word template, respectively). The manuscript should be double spaced in 12 point type, and all pages and lines must be numbered consecutively. The word limit does not include the title page, abstract, acknowledgements, references, tables, or figure captions.
