Giddings and Wermter 



-i 



[a) 



\LJ 



r\ 



(b) 



Fig. 1 - Typical tank configuration 



where 



a = h/B 

 T = S/B . 

 Applying Eq. (2) to the computation of r for the configuration shown yields: 



1- JL 



^2 B; 



T = a + -^ ^ + 



a 



2 bJ '^t 



a B 



^ + 



tan'^ n 



4r- 



(6) 



Table 2 indicates that the U-tube analogy can be used, with appropriate 

 care, as an approximation to a more precise theory, at least for this particular 

 family of tank geometries. 



754 



