29 



roximate Equivalent Radius, cm 



Liquid 



2 



0.3 



0.5 



0.7 



1.0 



es* 



,A:> 









M ethyl 

 Alcohol 



■,-- 



. 



«p» 



*4& % 





Varsol 



«* 



* 









Turpentine 







m 



4^^ 



^■^ 



Water 

 Filtered 

 6 deg C 





0g^f 







Water i 



Filtered 



19 deg G 



!» 



H 



— 



.."*'., ^ 



«m. . 



Mineral 



Oil 



o 









i 



62 percent j 

 Corn Syrup 



and Water 



o 











68 percent 

 Corn Syrup 



and Water 















«s> 



sr 



« 



.«* 



«*Hk 



Water, Tap 

 21 deg C 



o 







«ISfc 



^b 



«3s* 



Water, Tap 

 49 deg C 



o 



«* 









Water and 

 0.42 percent j 

 Glim 19 deg C | 



Figure 18b 



Figure 18 - Typical Shapes of Bubbles of Several Volumes in the Various Liquids 



occurs at different ranges of Reynolds number, that for liquids of low "M" number a minimum 

 in the drag curves is reached at Reynolds numbers of the order of 250, and that these minima 

 occur near the transition from spherical to ellipsoidal shape. Such minima are not obtained 

 for liquids of high "M" number. The drag coefficients of bubbles in such liquids decrease 

 until a constant value for the drag coefficient (spherical caps) is attained. In the ellipsoidal 

 region the curves are arranged according to the magnitude of the "M" number, indicating that 

 the liquid properties contained in this parameter, namely surface tension, viscosity, and 



