Journal ArticleDOI
Developing Laminar Flow in a Pipe of Circular Cross-Section
D. Fargie,B. W. Martin +1 more
TLDR
In this paper, a method is described for predicting flow development and pressure drop in the inlet of a uniform pipe of circular cross-section for the incompressible isothermal laminar flow of a Newtonian fluid.Abstract:
A method is described of predicting flow development and pressure drop in the inlet of a uniform pipe of circular cross-section for the incompressible isothermal laminar flow of a Newtonian fluid. Employment of both the differential and integral momentum equations leads to greater simplicity of expression than is found in other theoretical treatments, though the solutions obtained compare equally favourably with the limited experimental measurements available; those reported herein suggest the need for a more generalized analytical approach which covers non-isothermal flow and the effect on flow development of temperature-dependent viscosity.read more
Citations
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Journal ArticleDOI
Transition to turbulence in constant-mass-flux pipe flow
A. G. Darbyshire,Tom Mullin +1 more
TL;DR: In this article, a variety of jet and suction devices were used to create repeatable disturbances, which were then used to test the stability of developed Poiseuille flow.
Journal ArticleDOI
The Development Lengths of Laminar Pipe and Channel Flows
TL;DR: In this article, it was shown that the normalized development length can be expressed as L∕D=C0+C1Re and for Re→0 one obtains C0=0.619, whereas for Re∞ one can obtain C1= 0.0567.
Journal ArticleDOI
Experimental Studies of Transition to Turbulence in a Pipe
TL;DR: The question of why the fluid motion along a pipe changes from a laminar to a turbulent state at modest flow rates remains an enigma as all theoretical and numerical evidence suggests that the base state of fully developed flow, Hagen-Poiseuille flow, is linearly stable.
Journal ArticleDOI
Feeding anatomy, filter-feeding rate, and diet of whale sharks Rhincodon typus during surface ram filter feeding off the Yucatan Peninsula, Mexico.
Philip J. Motta,Michael Maslanka,Robert E. Hueter,Ray L. Davis,Rafael Parra,Samantha Mulvany,Maria Laura Habegger,James A. Strother,Kyle Mara,Jayne M. Gardiner,John P. Tyminski,Leslie D. Zeigler +11 more
TL;DR: A feeding mechanism utilizing cross-flow filtration of plankton is described, allowing the sharks to ingest plankton that is smaller than the mesh while reducing clogging of the filtering apparatus.
Journal ArticleDOI
Laser anemometer study of flow development in curved circular pipes
Y. Agrawal,L. Talbot,K. O. Gong +2 more
TL;DR: In this paper, an experimental investigation was carried out of the development of steady, laminar, incompressible flow of a Newtonian fluid in the entry region of a curved pipe for the entry condition of uniform motion.
References
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Journal ArticleDOI
Approximate Calculation of the Laminar Boundary Layer
TL;DR: The steady two-dimensional flow of viscous incompressible fluid in the boundary layer along a solid boundary, which is governed by Prandtl's approximation to the full equations of motion, presents a problem which in general is as intractable as any in applied mathematics.
Journal ArticleDOI
Phase Transitions in Solid Solutions of PbZrO 3 and PbTiO 3 (I) Small Concentrations of PbTiO 3
Gen Shirane,Akitsu Takeda +1 more
TL;DR: In this paper, the existence of another transition, for example 140°C in Pb(Zr95-Ti5)O 3, was confirmed and the authors interpreted these two transitions as phase changes from paraelectric state to ferroelectric one and further to antiferroelectric state.