A bearing is to be used as shaft support to carry both radial and thrust forces. Calculations show that a 02 series ball bearing
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Answer:
The friction factor is 0.303.
Explanation:
The flow velocity (), measured in meters per second, is determined by the following expression:
(1)
Where:
- Flow rate, measured in cubic meters per second.
- Diameter, measured in meters.
If we know that and
, then the flow velocity is:
The density and dinamic viscosity of the glycerin at 20 ºC are and
, then the Reynolds number (
), dimensionless, which is used to define the flow regime of the fluid, is used:
(2)
If we know that ,
,
and
, then the Reynolds number is:
A pipeline is in turbulent flow when , otherwise it is in laminar flow. Given that flow has a laminar regime, the friction factor (
), dimensionless, is determined by the following expression:
If we get that , then the friction factor is:
The friction factor is 0.303.