دانلود کتاب IUTAM Symposium on Variable Density Low-Speed Turbulent Flows: Proceedings of the IUTAM Symposium held in Marseille, France, 8–10 July 1996

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Front Matter....Pages i-xii
Front Matter....Pages 1-1
Instabilities and Bifurcations in Variable Density Flows....Pages 3-8
Global Self-Excited Oscillations in a Two-Dimensional Heated Jet: A Numerical Simulation....Pages 9-15
Mixing Behavior of Absolutely Unstable Axisymmetric Shear Layers Forming Side Jets....Pages 17-24
Influence of Density Contrast on Instability and Mixing in Coaxial Jets....Pages 25-32
A Wake behind a Heated Cylinder at Small Mach Numbers: Bifurcations of the Vortex Street and Potentialities of Acoustic Diagnostics....Pages 33-41
Experimental Study of the Benard-Karman Instability Downwind of a Heated Cylinder....Pages 43-50
Direct Simulation of Multiphase Flows with Density Variations....Pages 51-58
Self-Turbulent Flame Simulation by a Cellular Automaton....Pages 59-62
Front Matter....Pages 63-63
Some Problems on Single Point Modeling of Turbulent, Low-Speed, Variable Density Fluid Motions....Pages 65-84
Turbulent Kinetic Energy in Variable Density Jets and the Modelling Issue....Pages 85-88
Second-Order Turbulence Modelling and Numerical Simulation of Volume Variable Turbulent Flows....Pages 89-92
Second Order Modelling of Variable Density Jets: Favre Averaged Closures Versus Reynolds Averaged Closures....Pages 93-100
Averaging Procedures for the Large Eddy Simulation of Variable Density Flows....Pages 101-108
Numerical Predictions of Mixing Phenomena in Turbulent Variable Density Flows with Second Order Closure Turbulence Models....Pages 109-118
Variation of the Effective Nozzle Diameter in Round Turbulent Jets with Variable Density....Pages 119-126
Mixing in Coaxial Jets with Large Density Differences....Pages 127-134
Forces on Bodies Moving in a Weak Density Gradient without Buoyancy Effects....Pages 135-142
Experimental Investigation of the Interaction between Scalar Dissipation and Strain Rate in a Counterflow Geometry....Pages 143-150
Analytical Solution of the Equation for the Probability Density Function of a Scalar in Decaying Grid-Generated Turbulence with a Uniform Mean Scalar Gradient....Pages 151-158
PDF and Highest Concentration Evolution in Turbulent Jets....Pages 159-166
Front Matter....Pages 167-167
Turbulent Transfer Modelling in Turbulent Flows with Density Variations and Buoyancy Forces....Pages 169-172
Buoyancy-Generated Variable-Density Turbulence....Pages 173-180
Turbulence Structure and its Modeling of a Natural Convection Boundary Layer....Pages 181-188
Turbulent Structure in Horizontal Channel Flow under Unstable Density Stratification....Pages 189-196
Second Order Modelling of Incompressible Turbulent Buoyant Flows: Some Comments on the Maximum Principle....Pages 197-204
Variable Density Effects in Axisymmetric Turbulent Jets and Diffusion Flames....Pages 205-208
Numerical Modelling of Turbulent Convective Heat and Mass Transfer in Two-Layer Systems....Pages 209-212
An Experimental Investigation of Quasi-2D Turbulence with or without Buoyancy Effects....Pages 213-219
Penetrative Convection in Water near 4 °C....Pages 221-228
Front Matter....Pages 229-229
Studying and Modelling Variable Density Turbulent Flows for Industrial Applications....Pages 231-242
Front Matter....Pages 243-243
Optical Diagnostics for Flows with Density Variations....Pages 245-256
Large Scale Characterisation of the Concentration Field of Supercritical Jets of Hydrogen and Methane....Pages 257-264
Unsteady Measurement of Static Pressure, Velocity and Temperature in the Vicinity of the Nozzle in a Vacuum—Wind—Tunnel....Pages 265-268
Improvement of the Response of a Fine Cold-Wire for the Measurement of High-Frequency Temperature Fluctuations....Pages 269-272
Measurements of Velocity in the Turbulent Stage of Gaseous Mixtures Induced by Shock Waves....Pages 273-276
Front Matter....Pages 277-277
Flows with Density Variations and Compressibility: Similarities and Differences....Pages 279-301
Balance of Kinetic Energy in a Supersonic Mixing Layer Compared to Subsonic Mixing Layer and Subsonic Jets with Variable Density....Pages 303-308
Compressibility VS. Density Variations and the Structure of Turbulence: A Viewpoint from Experiments....Pages 309-316
A Numerical Method for Computing Flows for Arbitrarily Small and Medium Mach Numbers....Pages 317-324
On Density and Pressure Fluctuations in Uniformly Sheared Compressible Flow....Pages 325-332
Front Matter....Pages 277-277
A Structural Approach to the Effects of Compressibility in Turbulent Flows Subjected to External Compression or High Shear....Pages 333-342
Front Matter....Pages 343-343
Concluding Remarks....Pages 345-355
Back Matter....Pages 357-372