The swirling flow problem in boundary layer theory

1971 ◽  
Vol 42 (2) ◽  
pp. 137-156 ◽  
Author(s):  
Philip Hartman
Keyword(s):  
Boundary Layer ◽  
Flow Problem ◽  
Swirling Flow ◽  
Boundary Layer Theory

INVERSE PROBLEMS OF BOUNDARY LAYER THEORY

2018 ◽  
Vol 49 (8) ◽  
pp. 793-807
Author(s):  
Vladimir Efimovich Kovalev
Keyword(s):  
Boundary Layer ◽  
Inverse Problems ◽  
Boundary Layer Theory

The Boundary Layer Inside a Conical Surface Due to a Swirling Flow With Throughflow

1976 ◽  
Vol 43 (4) ◽  
pp. 564-566 ◽  
Author(s):  
J. M. Fabian ◽  
G. C. Oates
Keyword(s):  
Boundary Layer ◽  
Entire Range ◽  
Close Agreement ◽  
Swirling Flow ◽  
Approximate Solutions ◽  
Conical Surface

The problem of describing the boundary layer existing inside a conical surface due to the presence of a swirling flow passing through the cone is considered. Approximate solutions based upon the Karman-Polhausen method are obtained for both the laminar and the turbulent cases. The results obtained are in close agreement with known solutions previously obtained in the limits of swirl with no throughflow and throughflow with no swirl. The present results appear to be valid over the entire range of swirl to throughflow ratios.

Theoretical Basis for Extrapolation of Calibration Data of PTC 6 Throat Tap Nozzles

1991 ◽  
Vol 113 (2) ◽  
pp. 228-232 ◽  
Author(s):  
J. W. Murdock ◽  
D. R. Keyser
Keyword(s):  
Boundary Layer ◽  
Theoretical Basis ◽  
Reynolds Numbers ◽  
Boundary Layer Theory ◽  
Calibration Data ◽  
Maximum Difference ◽  
Calibration Laboratory

Equations for the extrapolation of calibration data for ASME/PTC 6 throat tap nozzles are derived from boundary layer theory. The results match published coefficients with a maximum difference of +0.03 percent. It is also shown that the effects of transition in the boundary layer extend to throat Reynolds numbers in excess of 10,000,000, far beyond the capacity of any known calibration laboratory. The present PTC 6 requirement that calibration data must be in the fully turbulent range cannot be met with current facilities.

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