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iCipwitirtENrortWE NAVY^ 



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HYDROMECHANICS ^ 



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AERODYNAMICS 

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STRUCTURAL 

 MECHANICS 



APPLIED 

 MATHEMATICS 



ACOUSTICS AND i-^ 

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f03 ^ I 



\ (Rev. 12-64) 



THE HYDROGEN-BUBBLE, FLOW- 

 SUALIZATIOW TECHNIQUE 



by 



George E. Mattlngly 



Distribution of this doc-ument is iHilimited 



HYDROMECHANICS LABORATORY 

 RESEARCH AND DEVELOPMENT REPORT 



February I966 



Report 2146 



