92-1 



HYDRODYNAMICS IN SHIP DESIGN 



Sec. X3.9 



TABLE X3.p — Density Characteristics of Common Liquids and Gases Under Atmospheric Pressure at 



60 Deg P 

 The data in these tables are adapted from those given by H. Rouse [EMF, 1946, Appendix, Tables VII, p. 357, and 

 VII, p. 3581. 



Liquids Under Atmospheric Pressure at 60 Deg F 



Gases Under Atmospheric Pressure at 60 Deg F 



The typical gas used for the calculation of this 

 table has the following constituents, by volume: 



CO2 , 13 per cent N, 75.5 per cent 



H2O, 9 per cent O2 , 2.5 per cent. 



The gas constant R for this mixture is 52.5 ft 

 per deg F, as compared to a gas constant of 53.3 

 for atmospheric air, hence their behavior at any 

 given temperature is about the same. 



X3.9 Mechanical Properties of Other Liquids 

 and Gases. The naval architect and marine 

 engineer, in the course of the hydrodynamic 

 design of a ship, may have to deal only infre- 

 quently with liquids and gases other than those 

 referred to in the preceding sections of this 

 appendix. Nevertheless, it is useful to have the 

 characteristics of these other media readily 

 available in numerical terms. 



Table X3.p, embodying data adapted from 



H. Rouse [EMF, 1946], gives the density charac- 

 teristics of a number of common liquids and 

 gases under atmospheric pressure at 60 deg F, 

 15.6 deg C. 



Rouse also gives in graphic form the viscosity 

 characteristics of common gases and liquids en- 

 countered in engineering work [EMF, 1946], as 

 follows: 



Fig. 194, page 360 of Appendix, d3Tiamic viscosity 

 versus temperature for common gases and liquids 



Fig. 195, page 361 of Appendix, dynamic viscosity 

 versus temperature for typical grades of oil 



Fig. 196, page 362 of Appendix, kinematic viscosity 

 versus temperature for common fluids. 



X3.10 Chemical Constituents of Sea Water. 



Forty-nine elements are known to exist in sea 

 water; probably there are others. The most 

 important of these, generally the ones which 

 occur in the largest amounts per unit volume, are: 



