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Keywords: turbulence
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Journal Articles
Article Type: Research Papers
J. Energy Resour. Technol. November 2021, 143(11): 112307.
Paper No: JERT-21-1204
Published Online: April 19, 2021
... autoignition. This study also identifies a role of turbulent flow property adjacent to premixed flame front in characterizing the mixed-mode combustion. The employed hybrid combustion model was verified to perform simulations aiming at suitable range of multi-mode engine operations. 1 http://energy.gov...
Journal Articles
Article Type: Technical Briefs
J. Energy Resour. Technol. October 2020, 142(10): 104504.
Paper No: JERT-19-1679
Published Online: June 8, 2020
... (1# and 2#) with different concentrations from 3 ppm to 50 ppm were added into diesel, respectively, and speed of impeller speed was set 400 rpm. Flow field characteristics including turbulence intensity, turbulent kinetic energy (TKE), and energy dissipation rate (EDR) influenced by those additives...
Journal Articles
Article Type: Research Papers
J. Energy Resour. Technol. September 2007, 129(3): 248–253.
Published Online: August 23, 2006
... dynamics drying process heating bagasse combustion turbulence fuel moisture CFD Bagasse moisture has long been known to be a source of ignition instability in suspension type bagasse fired furnaces. Moisture is the “single factor limiting the further development of bagasse suspension...
Journal Articles
Article Type: Research Papers
J. Energy Resour. Technol. March 2007, 129(1): 50–53.
Published Online: June 22, 2006
... erosion if they impinge on the tubes of the following (upstream, in the direction of the gas path) rows. Three sootblower configurations were considered to analyze this presumed phenomenology of tube erosion. The (significant) effects of turbulence on the motion of the solid particles are taken...
Journal Articles
Article Type: Research Papers
J. Energy Resour. Technol. March 2007, 129(1): 54–65.
Published Online: March 26, 2006
... investigated by numerical methods. To this, a two-dimensional axis-symmetric physical model of porous burner is considered. As the most typical porous burners, a two stage one which has preheating porous zone (PPZ) and combustion porous zone (CPZ) is studied. The continuity, momentum, energy, turbulence...
Journal Articles
Article Type: Article
J. Energy Resour. Technol. March 2005, 127(1): 15–25.
Published Online: March 29, 2005
... model, which is capable of accurately representing the rheogram of virtually any time-independent fluid. Predictions of the new method are compared with published experimental data gathered from large-scale flow loops. The tested cases include laminar and turbulent flow for a variety of drilling fluids...
Journal Articles
Article Type: Technical Papers
J. Energy Resour. Technol. December 2004, 126(4): 326–333.
Published Online: December 21, 2004
... inclined tangential inlet. Axial and tangential velocities and turbulent kinetic energy across the cylinder diameter ID = 0.089 m were measured at 24 different axial locations (0.32–0.90 m below the inlet) by using a laser Doppler velocimeter (LDV). The liquid flow rate was 16.4 m 3 / h , which corresponds...
Journal Articles
Article Type: Technical Papers
J. Energy Resour. Technol. March 2004, 126(1): 72–81.
Published Online: May 4, 2004
.... The numerical procedure was based on the finite volume formulation. The κ-ε model of turbulence was selected for simulating the turbulent flow field. The combustion process was calculated based on the finite rate models of Arrhenius and Magnussen, and the Discrete Transfer Radiation model was employed...
Journal Articles
Article Type: Technical Papers
J. Energy Resour. Technol. December 2003, 125(4): 304–310.
Published Online: November 18, 2003
... the results of a parametric study which was carried out to establish the nature of combustion within such vessels and tubing. The test vessel had an internal volume of 7 in 3 (115 ml) and the tubing had a nominal diameter of 0.5 in (1.27 mm). Flowing, turbulent, pre-mixed natural gas/air mixtures were used...
Journal Articles
Article Type: Technical Papers
J. Energy Resour. Technol. June 2003, 125(2): 126–130.
Published Online: June 4, 2003
... 2001; revised manuscript received December 2002. Associate Editor: J. Keska. 01 April 2001 01 December 2002 04 06 2003 surface topography measurement friction mechanical variables measurement flow measurement pressure measurement turbulence pipe flow natural gas...
Journal Articles
Article Type: Technical Papers
J. Energy Resour. Technol. December 2000, 122(4): 198–204.
Published Online: September 18, 2000
.... Geometry changes result when corners, found in couplings and chokes, are eroded with time. This change in geometry due to erosion can drastically change the flow field, especially the turbulent kinetic energy and dissipation rate. Recognizing this change is imperative, since the prediction of particle...
Journal Articles
Article Type: Technical Papers
J. Energy Resour. Technol. June 2000, 122(2): 88–93.
Published Online: March 2, 2000
... patterns, corresponding flame appearances, and axial length of recirculation bubble in different flow regimes are illustrated and compared. Mean velocity and turbulent stresses along the central axis are presented and discussed. The combustion characteristics in different characteristic flow regimes...