Effect of Very-Large-Scale Motions on One- and Two-Point Statistics in Turbulent Pipe Flow Investigated by Direct Numerical Simulations

2021 ◽  
pp. 117-122
Author(s):  
Christian Bauer ◽  
Claus Wagner
Keyword(s):  
Numerical Simulations ◽  
Pipe Flow ◽  
Large Scale ◽  
Direct Numerical Simulations ◽  
Turbulent Pipe Flow

scholarly journals On the origin of frequency sparsity in direct numerical simulations of turbulent pipe flow

2014 ◽  
Vol 26 (10) ◽  
pp. 101703 ◽  
Author(s):  
F. Gómez ◽  
H. M. Blackburn ◽  
M. Rudman ◽  
B. J. McKeon ◽  
M. Luhar ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Pipe Flow ◽  
Direct Numerical Simulations ◽  
Turbulent Pipe Flow

Pipe Flow Measurements of a Transparent Non-Newtonian Slurry

1989 ◽  
Vol 111 (3) ◽  
pp. 331-336 ◽  
Author(s):  
J. T. Park ◽  
R. J. Mannheimer ◽  
T. A. Grimley ◽  
T. B. Morrow
Keyword(s):  
Velocity Profile ◽  
Newtonian Fluid ◽  
Power Law ◽  
Pipe Flow ◽  
Large Scale ◽  
Longitudinal Velocity ◽  
Tangential Velocity ◽  
Turbulent Pipe Flow ◽  
Laser Doppler Velocimeter ◽  
Flow Measurements

An experimental description of the flow structure of non-Newtonian slurries in the laminar, transitional, and full turbulent pipe flow regimes is the primary objective of this research. Experiments were conducted in a large-scale pipe slurry flow facility with an inside pipe diameter of 51 mm. The transparent slurry formulated for these experiments from silica, mineral oil, and Stoddard solvent exhibited a yield-power-law behavior from concentric-cylinder viscometer measurements. The velocity profile for laminar flow from laser Doppler velocimeter (LDV) measurements had a central plug flow region, and it was in agreement with theory. The range of the transition region was narrower than that for a Newtonian fluid. The mean velocity profile for turbulent flow was close to a 1/7 power-law velocity profile. The rms longitudinal velocity profile was also similar to a classical turbulent pipe flow experiment for a Newtonian fluid; however, the rms tangential velocity profile was significantly different.

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