scholarly journals Experimental investigation of turbulent flow through a circular-to-rectangular transition duct

AIAA Journal ◽  
1992 ◽  
Vol 30 (2) ◽  
pp. 367-375 ◽  
Author(s):  
D. O. Davis ◽  
F. B. Gessner
Keyword(s):  
Experimental Investigation ◽  
Turbulent Flow ◽  
Flow Through

Numerical and experimental investigation of the turbulent flow through a low-pressure turbine cascade in the endwall region

PAMM ◽  
2013 ◽  
Vol 13 (1) ◽  
pp. 311-312 ◽  
Author(s):  
Denis Koschichow ◽  
Jochen Fröhlich ◽  
Roberto Ciorciari ◽  
Ilker Kirik ◽  
Reinhard Niehuis
Keyword(s):  
Experimental Investigation ◽  
Turbulent Flow ◽  
Low Pressure ◽  
Turbine Cascade ◽  
Low Pressure Turbine ◽  
Flow Through

The Influence of the Wall on Flow Through Pipes Packed With Spheres

1990 ◽  
Vol 112 (1) ◽  
pp. 84-88 ◽  
Author(s):  
R. M. Fand ◽  
R. Thinakaran
Keyword(s):  
Experimental Investigation ◽  
Reynolds Number ◽  
Porous Media ◽  
Turbulent Flow ◽  
Porous Matrix ◽  
Circular Cylinders ◽  
Empirical Equations ◽  
Flow Parameters ◽  
Flow Through ◽  
Dimension Ratio

This paper presents the results of an experimental investigation that is a sequel to a previously published study of the flow of fluids through porous media whose matrices are composed of randomly packed spheres. The objective of the previous study was to accurately determine the ranges of the Reynolds number for which Darcy, Forchheimer and turbulent flow occur, and also the values of the controlling flow parameters—namely, the Kozeny-Carman constant for Darcy flow and the Ergun constants for Forchheimer and turbulent flow—for porous beds that are infinite in extent; that is, practically speaking, for sufficiently large values of the dimension ratio, D/d, where D is a measure of the extent of the bed and d is the diameter of a single spherical particle of which the porous matrix is composed. The porous media studied in the previous and present experiments were confined within circular cylinders (pipes), for which the dimension D is taken to be the diameter of the confining cylinder. The previous study showed that the flow parameters are substantially independent of the dimension ration for D/d ≥ 40. For D/d < 40, the so-called “wall effect” becomes significant, and the flow parameters become functionally dependent upon this ratio. The present paper presents simple empirical equations that express the porosity and the flow parameters as functions of D/d for 1.4 ≤ D/d < 40. Transitions from one type to another were found to be independent of D/d and occur at values of the Reynolds number identical to those reported in the previous study.

HEAT TRANSFER AND PRESSURE DROP IN TURBULENT FLOW THROUGH A TUBE WITH LONGITUDINAL PERFORATED STAR-SHAPED INSERTS

2011 ◽  
Vol 18 (6) ◽  
pp. 491-502 ◽  
Author(s):  
Andrew Mintu Sarkar ◽  
M. A. Rashid Sarkar ◽  
Mohammad Abdul Majid
Keyword(s):  
Heat Transfer ◽  
Pressure Drop ◽  
Turbulent Flow ◽  
Flow Through

Heat Transfer in Turbulent Flow Through Tube with Wire-Coil Inserts

2005 ◽  
Vol 12 (4) ◽  
pp. 385-394 ◽  
Author(s):  
M. A. Rashid Sarkar ◽  
M. Zaidul Islam ◽  
M. A. Islam
Keyword(s):  
Heat Transfer ◽  
Turbulent Flow ◽  
Wire Coil ◽  
Flow Through
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