Non-Steady-State Continuous Point Release with No Wind

Case 3 Non-Steady-State Continuous Point Release with No Wind 

For this case Equation 5-9 reduces to Equation 5-17 with the initial condition expressed by Equation 5-18 and the boundary condition expressed by Equation 5-13. The solution is found by integrating the instantaneous solution (Equation 5-19 or 5-20) with respect to time. The result in spherical coordinates2 is 

As t — oo, Equations 5-21 and 5-22 reduce to the corresponding steady-state solutions (Equations 5-15 and 5-16). 

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