Power required to overcome drag force at a given velocity.xls
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Description
KNOWN: Air flow conditions and drag force associated with a heater of prescribed surface temperature and area.
FIND: Required heater power.
ASSUMPTIONS: 1) Steady state conditions.
2) Reynolds analogy is applicable.
3) Bottom surface is adiabatic.
Calculation Reference
Fundamentals Of Machine Component Design - Juvinall
To find the required heater power to overcome the drag force at a given velocity, considering the air flow conditions and drag force associated with a heater of prescribed surface temperature and area, you can follow these steps:
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Calculate the drag force: The drag force (Fd) exerted on the heater can be determined using the given drag force associated with the heater.
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Calculate the power required: The power required to overcome the drag force is equal to the product of the drag force and the velocity of the air flow:
Power = Fd * Velocity
Where Fd is the drag force and Velocity is the air flow velocity.
By following these steps, you can find the required heater power to overcome the drag force at a given velocity. The assumption of steady-state conditions and the assumption that the bottom surface is adiabatic allows for simplified analysis.
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