Vertical Axis Windmils of Ancient Persia

Persian Culture; invented 500 C.E. to 900 C.E.; a vertical pole with attached reed covered pads is placed in front of a wind funnel of adobe walls; the Bernoulli effect results in the rotation of the pole axis, which was attached to a grinding stone inside the adobe building below; located in present-day Yazd, Iran.

Elevation is c. 1426 meters (4680 feet) above sea level.

Material: Unfired adobe brick wall, mud brick vault, wooden and reed mat rotor.

Data for CG model:
1. https://www.google.com/search?biw=1276&bih=1507&tbm=isch&sa=1&ei=qPe0WpLOH8WGjwOH04_QCw&q=Vertical+Axis+Windmills+of+Ancient+Persia&oq=Vertical+Axis+Windmills+of+Ancient+Persia&gs_l=psy-ab.12...49030.49030.0.50627.1.1.0.0.0.0.96.96.1.1.0....0...1c.2.64.psy-ab..0.0.0....0.4gEW_PgfT6w
2. Saeidian, A, Bemanian, MR, Zamani, E, Pourjafar, M, and Gholi, M. 2012. A survey in sustainable design of Iranian windmill technology in desert areas, Department of Architecture, Mahshahr Branch, Islamic Azad University, Mahshahr [IRI], Department of Architecture, Faculty of Art, University of Tarbiat Modares[IRI], Department of Architecture, Faculty of Architecture, Jahad Daneshgahi Institution of Ahvaz Branch [IRI]; Published by Elixer International Journal.