Temperature profile around heat source

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SUMMARY

The discussion focuses on modeling the temperature profile around a point heat source in water that emits 10 W of heat for 10 seconds before being turned off. The surrounding water starts at a temperature of 20 °C. The solution requires the application of the inhomogeneous heat transfer partial differential equation, as steady-state assumptions do not apply due to the transient nature of the heat source. Participants emphasize the need for a clear understanding of heat transfer principles to derive the temperature profile as a function of distance (r) and time (t).

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  • Understanding of inhomogeneous heat transfer partial differential equations
  • Familiarity with transient heat conduction concepts
  • Knowledge of boundary conditions in heat transfer problems
  • Basic principles of thermal energy transfer in fluids
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Homework Statement


A point source in water provides 10 W of heat for 10 seconds, and is then shut off. The surrounding water has a temperature of 20 °C. Provide the temperature profile as a function of distance r and time t.


Homework Equations





The Attempt at a Solution



If it were steady-state, I could use Gauss theorem to solve this problem. But since the point source is turned on and off again, I have no idea how to approach this problem.
If someone could hint me in the right direction, it would be very much appreciated.
 
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You have to use the inhomogeneous heat transfer partial differential equation.
 

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