Taylor, G. I. The Mechanics of Large Bubbles Rising through Extended Liquids and through Liquids in Tubes.pdf


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1 PART I. DEDUCING THE RISE OF GAS BUBBLES

Figure 1.4
The variation of pressure over the surfaces of lenticular bodies in a wind tunnel.
Experimental values: • θm = 30◦ ; + θm = 55◦ ; × θm = 75◦ ; · — · — · theoretical
curve for a sphere, assuming ideal fluid flow.
Mean pressures pb on the backs of the bodies:

θm

30◦

55◦

75◦

(pb − p0 ) / 21 ρU 2

-1.32

-1.39

-1.41

9