scholarly journals Dividing Flow Properties of Newtonian Fluid and Viscoelastic Fluid. 2nd Report. Flow Patterns and Energy Losses in Two-Dimensional Steady Laminar Flow of Viscoelastic Fluid.

1994 ◽  
Vol 60 (575) ◽  
pp. 2411-2418 ◽  
Author(s):  
Seiji Goto ◽  
Hiroshi Nemoto ◽  
Hiroshi Kato
Keyword(s):  
Laminar Flow ◽  
Newtonian Fluid ◽  
Viscoelastic Fluid ◽  
Flow Patterns ◽  
Energy Losses ◽  
Two Dimensional ◽  
Flow Properties ◽  
Steady Laminar

scholarly journals Laminar Flow Patterns in Two Dimensional, Suddenly Expanded Conduits and Influence of Temperature on Them

1979 ◽  
Vol 22 (166) ◽  
pp. 537-543
Author(s):  
Akiharu MITSUNAGA ◽  
Kojiro TAKAGISHI ◽  
Toshihiro ENDO ◽  
Tatsuzo HIROSE
Keyword(s):  
Laminar Flow ◽  
Flow Patterns ◽  
Two Dimensional ◽  
Influence Of Temperature ◽  
Influence Of Temperature On

The heated laminar vertical jet

1967 ◽  
Vol 29 (2) ◽  
pp. 305-315 ◽  
Author(s):  
R. S. Brand ◽  
F. J. Lahey
Keyword(s):  
Boundary Layer ◽  
Temperature Distribution ◽  
Laminar Flow ◽  
Prandtl Number ◽  
Exact Solutions ◽  
Two Dimensional ◽  
Boundary Layer Equations ◽  
Prandtl Numbers ◽  
Vertical Jet ◽  
Steady Laminar

The boundary-layer equations for the steady laminar flow of a vertical jet, including a buoyancy term caused by temperature differences, are solved by similarity methods. Two-dimensional and axisymmetric jets are treated. Exact solutions in closed form are found for certain values of the Prandtl number, and the velocity and temperature distribution for other Prandtl numbers are found by numerical integration.

A two-dimensional boundary layer encountering a three-dimensional hump

1977 ◽  
Vol 83 (1) ◽  
pp. 163-176 ◽  
Author(s):  
F. T. Smith ◽  
R. I. Sykes ◽  
P. W. M. Brighton
Keyword(s):  
Boundary Layer ◽  
Constant Width ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Flow Properties ◽  
Nonlinear Motion ◽  
Dimensional Boundary ◽  
Incompressible Boundary ◽  
Insight Into ◽  
Steady Laminar

A shallow three-dimensional hump disturbs the two-dimensional incompressible boundary layer developed on an otherwise flat surface. The steady laminar flow is studied by means of a three-dimensional extension of triple-deck theory, so that there is the prospect of separation in the nonlinear motion. As a first step, however, a linearized analysis valid for certain shallow obstacles gives some insight into the flow properties. The most striking features then are the reversal of the secondary vortex motions and the emergence of a ‘corridor’ in the wake of the hump. The corridor stays of constant width downstream and within it the boundary-layer displacement and skin-friction perturbation are much greater than outside. Extending outside the corridor, there is a zone where the surface fluid is accelerated, in contrast with the deceleration near the centre of the corridor. The downstream decay (e.g. of displacement) here is much slower than in two-dimensional flows.

scholarly journals FLOW COMPUTATIONS NEARBY A STORM SURGE BARRIER UNDER CONSTRUCTION WITH TWO-DIMENSIONAL NUMERICAL MODELS

1986 ◽  
Vol 1 (20) ◽  
pp. 143
Author(s):  
H.E. Klatter ◽  
J.M.C. Dijkzeul ◽  
G. Hartsuiker ◽  
L. Bijlsma
Keyword(s):  
Numerical Model ◽  
Storm Surge ◽  
Field Data ◽  
Numerical Models ◽  
Flow Patterns ◽  
Scale Model ◽  
Energy Losses ◽  
Local Energy ◽  
Two Dimensional ◽  
Physical Scale

This paper discusses the application of two-dimensional tidal models to the hydraulic research for the storm surge barrier in the Eastern Scheldt in the Netherlands. At the site of the barrier local energy losses dominate the flow. Three methods are discussed for dealing with these energy losses in a numerical model based on the long wave equations. The construction of the storm surge barrier provided extensive field data for various phases of the construction of the barrier and these field data are used as a test case for the computation at methods developed. One method is preferred since it gives good agreement between computations and field data. The two-dimensional flow patterns, the discharge and the head-difference agree well,, The results of scale model tests were also available for comparison. This comparison demonstrated that depth-averaged velocities, computed by a two-dimensional numerical model, are as accurate as values obtained from a large physical scale model. Even compicated flow patterns with local energy losses and sharp velocity gradients compared well.

scholarly journals Unsteady Boundary-Layer Flow over Jerked Plate Moving in a Free Stream of Viscoelastic Fluid

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Sufian Munawar ◽  
Ahmer Mehmood ◽  
Asif Ali ◽  
Najma Saleem
Keyword(s):  
Boundary Layer ◽  
Newtonian Fluid ◽  
Viscoelastic Fluid ◽  
Boundary Layer Flow ◽  
Analytic Solution ◽  
Flat Surface ◽  
Dimensionless Time ◽  
Unsteady Boundary Layer ◽  
Flow Properties ◽  
Layer Flow

This study aims to investigate the unsteady boundary-layer flow of a viscoelastic non-Newtonian fluid over a flat surface. The plate is suddenly jerked to move with uniform velocity in a uniform stream of non-Newtonian fluid. Purely analytic solution to governing nonlinear equation is obtained. The solution is highly accurate and valid for all values of the dimensionless time0≤τ<∞. Flow properties of the viscoelastic fluid are discussed through graphs.

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