Stagnation Pressure question? Help.

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SUMMARY

The discussion focuses on the conversion of dynamic temperature in the context of stagnation pressure calculations. Specifically, it clarifies that the division by 1000 is necessary to convert kilojoules (kJ) into its base units, which are essential for accurately calculating the temperature rise due to air velocity. The conversion involves understanding the relationship between energy and temperature in fluid dynamics. This ensures that calculations adhere to the principles of thermodynamics and fluid mechanics.

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  • Basic grasp of stagnation pressure calculations
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Sunrise
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So this is the question I am working on as shown in the attachment.
I got stuck in the part that I highlighted, where they divided the Dynamic temperature by 1000.
WHY ?

Any help will be appreciated,

Thank you.
 

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    Screen Shot 2014-05-14 at 2.20.57 PM.png
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Sunrise said:
So this is the question I am working on as shown in the attachment.
I got stuck in the part that I highlighted, where they divided the Dynamic temperature by 1000.
WHY ?

Any help will be appreciated,

Thank you.

It's not that the dynamic temperature is divided by 1000. (Notice: there are units attached to the 1000). You have to convert 1 kJ (= 1000 kg-m[itex]^{2}[/itex]/s[itex]^{2}[/itex]) into its equivalent base units so that you can calculate the rise in temperature due to the velocity of the air.
 

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