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Keywords: Turbulence
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Proceedings Papers

Proc. ASME. HT2012, Volume 2: Heat Transfer Enhancement for Practical Applications; Fire and Combustion; Multi-Phase Systems; Heat Transfer in Electronic Equipment; Low Temperature Heat Transfer; Computational Heat Transfer, 21-30, July 8–12, 2012
Paper No: HT2012-58045
... Longitudinal and transverse pressure-driven vortices induced by shear instabilities behind vortex generators play a crucial role in convective transport phenomena. The proven influence of these turbulence promoters on heat and mass transfer enhancement has led to their incorporation in modern...
Proceedings Papers

Proc. ASME. HT2012, Volume 2: Heat Transfer Enhancement for Practical Applications; Fire and Combustion; Multi-Phase Systems; Heat Transfer in Electronic Equipment; Low Temperature Heat Transfer; Computational Heat Transfer, 649-657, July 8–12, 2012
Paper No: HT2012-58273
... the fluctuations of velocity within the agitated cavity. Variations of ensemble- averaged velocity throughout the cycle identify the unsteady sloshing of the flow. Cycle-to-cycle variations about the ensemble mean computed as an RMS and resolved in time within the cycle period present the changing turbulence...
Proceedings Papers

Proc. ASME. HT2008, Heat Transfer: Volume 1, 575-584, August 10–14, 2008
Paper No: HT2008-56228
... 10 07 2009 Experiments have been performed in a water tunnel facility to examine the physical mechanism of heat transfer augmentation by freestream turbulence in classical Hiemenz flow. A unique experimental approach to studying the problem is developed and demonstrated herein. Time...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 1, 91-101, July 11–15, 2004
Paper No: HT-FED2004-56110
.... The present study emphasized flow properties far from the source, where effects of source disturbances are lost, where the flows are largely controlled by their conserved properties, where flow properties approximate self-preserving turbulent flow behavior, and where appropriately-scaled flow properties...
Topics: Jets, Turbulence
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 1, 845-849, July 11–15, 2004
Paper No: HT-FED2004-56077
... 03 03 2009 In the context of recent work by Brocchini & Peregrine [1,2], this paper aims to document free surface profiles, and turbulence length scales in hydraulic jumps with Froude numbers between 1.98 and 4.82. Although information on bubble size, frequency and velocities...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 4, 213-216, July 11–15, 2004
Paper No: HT-FED2004-56890
... 03 03 2009 We report a new non-intrusive diagnostics technique for the simultaneous reconstruction of temperature ( T ) and soot volume fraction ( f v ) profiles in axi-symmetric turbulent luminous flames. Line-of-sight spectral radiation intensities ( I λ ) for one diametric...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 2, Parts A and B, 299-303, July 11–15, 2004
Paper No: HT-FED2004-56130
... relative to the moving wall x, y, z streamwise, normal and spanwise directions ox marker position at time zero U Eulerian velocity vector u , v , w turbulent intensities in streamwise, normal due to computer limitations. Plane Couette flow is caused by the motion of two infinite parallel planes...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 3, 469-477, July 11–15, 2004
Paper No: HT-FED2004-56181
... turbulence closures, a consistent method is offered to bridge the gap between DNS, LES and RANS models. Based on the filter size, conditional averaging is adopted for the Navier-Stokes equation to introduce one more parameter into the definition of the eddy viscosity. Both time-dependent single- phase...
Proceedings Papers

Proc. ASME. HT2003, Heat Transfer: Volume 2, 21-34, July 21–23, 2003
Paper No: HT2003-47038
... and puffs in still fluids for round rting plumes and jets in crossflow. The no-slip convection proximation for crossflow motion combined with self- eserving approximations for streamwise motion was also ective for predicting flow trajectories at self-preserving nditions for steady round turbulent plumes...
Proceedings Papers

Proc. ASME. HT2003, Heat Transfer: Volume 3, 649-655, July 21–23, 2003
Paper No: HT2003-47103
... 18 12 2008 The k -ε model are performed to investigate numerically the steady, turbulent, incompressible flow and heat transfer converging radially between two stationary disks, which is as a continuously developing flow problem under the internal boundary layer approximations...
Proceedings Papers

Proc. ASME. HT2003, Heat Transfer: Volume 2, 421-428, July 21–23, 2003
Paper No: HT2003-47230
... CP Heat Capcity, kJ/kg K 003 nce SA 0hfg Latent of vaporization, J/kg k Thermal conductivity, W/m K n Exponent used in Eq.(16) Pr Prandtl number Prt Turbulent Prandtl number q Heat flux, W/m2 r Radius, m R Gas constant, Nm/kg °K rmax Maximum cavity radius, m rtan Cavity radius based...