Aerodynamic and geometric properties of amaranth seeds
|
|
||||||||
PDF 187.4 KB
|
|||||||||
| Authors: | B. Kram1, B. Szot2 1Institute of Agriculture Mechanization, University of Agriculture, Chełmońskiego 37/41, 51-630 Wrocław 2Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Abstract : | Abstract. Geometrical properties (thickness, width and length) of individual amaranth seeds were measured by means of an optic device. The measurements allowed us to be calculated the values of seeds bearing surface for estimating aerodynamic properties. The determination of aerodynamic properties was performed using prototype apparatus adapted to suit the size of amaranth seeds. With such parameters as: dynamic pressure, seed mass and seed bearing surface basic aerodynamic properties: critical velocity, coefficient of aerodynamic resistance and coefficient of fineness were calculated. Critical velocity was found dependant on seed bearing surface, width, length and mass of the seed. With an increase of these parameters the critical velocity increased linearly and the coefficient of fineness decreased following the same formula. Both relationships were described with linear equations. |
||||||||
| Keywords : | amaranth, seeds, geometrical features, aerodynamic properties | ||||||||
| Language : | English | ||||||||