Curbed streamlines correspoodmq to 32 plus the inward The curved streamlines are tanqenl to the Outward raoial 



radial stream function values are tanqenl to each flow lines havinq the same numerical stream function 



other at the sink center Ifc WO'>>rtW V^ (2^) at the source center 



Fig. 43.N Stream-Function Pattern for a 3-Diml Source-Sink Pair 



the 3-diml siiigiosource-and-uniforin-flow combi- 

 nation described picviou.slj' in tliis section and 

 illustrated in Fig. 43. M. The result, indicated in 

 Fig. 43.0, is a plane longitudinal section through 

 the a.\is of a 3-diml stream form of revolution of 

 oval shape and the 3-diml flow pattern around it. 

 This form may be called, following the lead of 

 D. W. Taylor, a solid stream form; it may also 

 be called a solid liankine body. The streamlines 

 lying outside it are the traces of varied-radius 



stream tubes, formed by the intersection of the 

 circular-section .stream surfaces with the plane of 

 the page. 



If the solid axisj'mmetric stream forms resulting 

 from anj' of these combinations are too blunt, 

 pairs of 3-diml secondary or tertiarj' sources and 

 sinks may be added, following the scheme de- 

 scribed in Sec. 43.5 for 2-diml radial flows of this 

 kind. 



The methods of constructing graphically the 



-?4 Curvad source-sink streamlines of Fiq. 43Ji 



PlO. 43.0 AxiBTUMBTIUf Ik)l)Y SlUrK rOR C'dMIIISATION oy 3-DlMI. SotmCF.-SiNK TaIU and :t-niMI. HSIMIIIM Flow 



