Integral method for calculating the initial section of a two-dimensional turbulent jet in a carrier flow

1978 ◽  
Vol 14 (3) ◽  
pp. 312-317
Author(s):  
E. V. Bruyatskii
Keyword(s):  
Integral Method ◽  
Initial Section ◽  
Turbulent Jet ◽  
Two Dimensional ◽  
Carrier Flow

scholarly journals The Turbulent Jet from a Series of Holes in Line

1964 ◽  
Vol 15 (1) ◽  
pp. 1-28 ◽  
Author(s):  
R. Knystautas
Keyword(s):  
Jet Flow ◽  
Turbulent Jet ◽  
Two Dimensional ◽  
Turbulent Jet Flow ◽  
Similar Density

SummaryThe possibility of obtaining two-dimensional turbulent jet flow from a series of closely-spaced uniform holes in line has been investigated both theoretically and experimentally. The case studied was that of a jet discharging into still fluid of similar density at incompressible speeds. Such a quasi-two-dimensional jet is a particular example of a multiple-interfering jet group.

scholarly journals An interaction integral method for evaluating T-stress for two-dimensional crack problems using the extended radial point interpolation method

2015 ◽  
Vol 18 (2) ◽  
pp. 106-113
Author(s):  
Nha Thanh Nguyen ◽  
Hien Thai Nguyen ◽  
Minh Ngoc Nguyen ◽  
Thien Tich Truong
Keyword(s):  
Integral Method ◽  
Interpolation Method ◽  
Two Dimensional ◽  
Radial Point Interpolation Method ◽  
Interaction Integral ◽  
Crack Problems ◽  
Radial Point Interpolation ◽  
T Stress ◽  
Point Interpolation Method ◽  
Point Interpolation

The so-called T-stress, or second term of the William (1957) series expansion for linear elastic crack-tip fields, has found many uses in fracture mechanics applications. In this paper, an interaction integral method for calculating the T-stress for two-dimensional crack problems using the extended radial point interpolation method (XRPIM) is presented. Typical advantages of RPIM shape function are the satisfactions of the Kronecker’s delta property and the high-order continuity. The T-stress can be calculated directly from a path independent interaction integral entirely based on the J-integral by simply the auxiliary field. Several benchmark examples in 2D crack problem are performed and compared with other existing solutions to illustrate the correction of the presented approach.

scholarly journals NUMERICAL AND EXPERIMENTAL MODELING OF INTERACTION BETWEEN A TURBULENT JET FLOW AND AN INLET

2000 ◽  
Vol 22 (1) ◽  
pp. 29-38
Author(s):  
H. D. Lien ◽  
I. S. Antonov
Keyword(s):  
Convective Flow ◽  
Integral Method ◽  
Natural Experiment ◽  
Present Model ◽  
Turbulent Jet ◽  
Sources Of Pollution ◽  
Two Component ◽  
Local Sources ◽  
Turbulent Jet Flow ◽  
Harmful Substances

In ventilation devices to get rid of harmful substances out of workingplaces, we use sucking devices. The local sources of pollution are evacuated by them. Abasic element when creating the model of sucking device is: the source of harmful substancesis discussed as a rising convective flow, which is ejected out of sucking spectrum,created by a sucking apparatus. In the present work, the flow is a whole one with variablequantity of motion and kinetic energy along it's length. The change in those twoparameters is caused by and is in dependent function of the inlet spectrum. There hasbeen discussed a two-component flow of air and gas in ventilation devices. A two-velocityscheme of flow is used to realise the numerical method. An integral method of investigationis used, based on the conditions of conservation of mass contents, quantity of motion andkinetic energy. It's been accepted that quantity of motion and energy change in functionof inlet action. A comparison of numerical results and natural experiment are made fortwo conditions: full suck and not full suck. Conclusion is that the present model is preciseand can be unset for engineering calculations.

Development of a two-dimensional turbulent jet in an infinite space

1974 ◽  
Vol 6 (4) ◽  
pp. 670-674
Author(s):  
V. I. Korobko ◽  
S. V. Fal'kovich
Keyword(s):  
Turbulent Jet ◽  
Two Dimensional ◽  
Infinite Space

A Numerical Method for Heat Conduction Problems

1974 ◽  
Vol 96 (3) ◽  
pp. 307-312 ◽  
Author(s):  
M. J. Reiser ◽  
F. J. Appl
Keyword(s):  
Exact Solution ◽  
Heat Conduction ◽  
Steady State ◽  
Numerical Analysis ◽  
Temperature Gradient ◽  
Singular Integral ◽  
Integral Method ◽  
Two Dimensional ◽  
Convection Boundary ◽  
Steady State Heat

A singular integral method of numerical analysis for two-dimensional steady-state heat conduction problems with any combination of temperature, gradient, or convection boundary conditions is presented. Excellent agreement with the exact solution is illustrated for an example problem. The method is used to determine the solution for a fin bank with convection.

A vortex-street model of the flow in the similarity region of a two-dimensional free turbulent jet

1982 ◽  
Vol 123 ◽  
pp. 523-535 ◽  
Author(s):  
J. W. Oler ◽  
V. W. Goldschmidt
Keyword(s):  
Experimental Data ◽  
Reynolds Stress ◽  
Turbulent Jet ◽  
Vortex Street ◽  
Two Dimensional ◽  
Mean Flow ◽  
Mean Velocity ◽  
The Core ◽  
The Mean ◽  
Similarity Relationships

The mean-velocity profiles and entrainment rates in the similarity region of a two-dimensional jet are generated by a simple superposition of Rankine vortices arranged to represent a vortex street. The spacings between the vortex centres, their two-dimensional offsets from the centreline, as well as the core radii and circulation strengths, are all governed by similarity relationships and based upon experimental data.Major details of the mean flow field such as the axial and lateral mean-velocity components and the magnitude of the Reynolds stress are properly determined by the model. The sign of the Reynolds stress is, however, not properly predicted.

0106 The Study of the Structure of Turbulent / Non-Turbulent Region in Two Dimensional Turbulent Jet

2010 ◽  
Vol 2010 (0) ◽  
pp. 17-18
Author(s):  
Osamu TERASHIMA ◽  
Yasuhiko SAKAI ◽  
Yuichi SHOUJI ◽  
Kouji NAGATA
Keyword(s):  
Turbulent Jet ◽  
Two Dimensional ◽  
Turbulent Region
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