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Keywords: fluctuations
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. March 2012, 134(3): 031001.
Published Online: January 9, 2012
...Pedro J. Coelho Theoretical analysis and experimental investigations have shown that the mean heat fluxes in turbulent gaseous flows are influenced not only by the mean scalar fields (temperature and molar fraction of the species) but also by the scalar fluctuations. It is widely recognized...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. July 2011, 133(7): 072701.
Published Online: April 1, 2011
... of Maxwell’s equations with the fluctuation-dissipation theorem to directly calculate the emissivity. The present study aims at unifying the direct and indirect methods for calculating the far-field thermal emission from layered structures with a nonuniform temperature distribution. Formulations for both...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. April 2011, 133(4): 042501.
Published Online: January 19, 2011
... on the hot and cold walls are obtained by time-averaging the fluctuations in local heat flux. The effects of key experimental parameters, such as the camera frame rate and the total image capture time, are investigated. For the current problem, it is shown that a total capture interval of about 10 s...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. January 2007, 129(1): 94–97.
Published Online: July 24, 2006
...James S. Hammonds, Jr. A Green function approach is used with the fluctuation-dissipation theorem to develop a qualitative theoretical model of radiation heat transfer across an evacuated microscale spherical geometry bounded by silicon carbide. The appropriate scalar Green function is presented...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. August 2005, 127(8): 877–887.
Published Online: March 1, 2005
... crossflows within the windowed test section of a water channel facility. Mean and fluctuating concentrations of source fluid were measured over cross sections of the flow using planar-laser-induced-fluorescence (PLIF). The self-preserving penetration properties of the flow were correlated successfully...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. October 2003, 125(5): 831–838.
Published Online: September 23, 2003
..., 2003. Associate Editor: S. T. Thynell. 31 October 2003 18 April 2003 23 09 2003 turbulence fluctuations heat transfer radiative transfer temperature distribution flames flow simulation Combustion Heat Transfer Jets Radiation Turbulence In turbulent...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. August 2003, 125(4): 678–686.
Published Online: July 17, 2003
.... Thynell. 16 September 2002 20 March 2003 17 07 2003 turbulence heat transfer fluctuations combustion infrared spectroscopy flames flow simulation flow measurement Combustion Heat Transfer Modeling Radiation Turbulence Accurate computation of radiation heat...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. April 2003, 125(2): 257–265.
Published Online: March 21, 2003
...Erick A. Siba; M. Ganesa-Pillai; Kendall T. Harris; A. Haji-Sheikh This study concerns the flow and heat transfer characteristics of a turbulent submerged circular air jet impinging on a horizontal flat surface when free stream turbulence exceeds 20 percent. The turbulent fluctuations of the free...
Journal Articles
Publisher: ASME
Article Type: Technical Notes
J. Heat Mass Transfer. June 2002, 124(3): 583–587.
Published Online: May 10, 2002
... line heat transfer. A new correlation for the stagnation line heat transfer has been developed that includes the spanwise fluctuating vorticity components. Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER . Manuscript received by the Heat Transfer...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. October 2001, 123(5): 849–857.
Published Online: March 16, 2001
...-mean-square temperature fluctuations and turbulent heat fluxes were verified with existing DNS studies obtained with ideal thermal boundary conditions. Results of the present study were compared to the findings of Polyakov (1974), who made a similar study with linearization of the fluid equations...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. April 2001, 123(2): 213–218.
Published Online: September 29, 2000
...A. Mosyak; E. Pogrebnyak; G. Hetsroni, Fellow ASME An experimental study of the wall temperature fluctuations under different thermal-wall boundary conditions was carried out. Statistics obtained from the experiments are compared with existing experimental and numerical data. The wall temperature...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. May 2000, 122(2): 287–293.
Published Online: December 19, 1999
.... In this work, the moment closure method is used to simulate the turbulent non-premixed combustion processes in regenerative furnaces. Since fluctuations appear in the temperature and species concentrations, which in turn introduce fluctuations in the reaction rate coefficients and species production term...