Measurement of Friction Coefficient on a Powder Layer and Fluid Dynamic Study

Results of comparison experiments ~ The surface of the track board

When a galvanized iron sheet was laid on the track board, the results were similar to the major results. mB ranges from 0.12 to 0.16. 

This suggests that the slide process is not affected by the condition of the surface of the track board.


Fig. 21. Friction coefficient versus basal pressure of the disk.
::on flour layer with a galvanized iron sheet (mB)
:on flour layer  (mB)
:(for reference) on flour layer in a different month (mB)
:(for reference) without flour layer
Measurement of Friction Coefficient on a Powder Layer and Fluid Dynamic Study