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Keywords: computational fluid dynamics
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Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. August 2021, 143(4): 044501.
Paper No: SOL-20-1337
Published Online: February 5, 2021
... experimental measurements. In this paper, a methodology is described to compute these B–L dynamic stall model airfoil coefficients utilizing a computational fluid dynamics (CFD) model. This method permits the calculation of the blade dynamic stall characteristics over a range of reduced pitch rates...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. December 2020, 142(6): 061003.
Paper No: SOL-19-1471
Published Online: April 8, 2020
... in the development of solar thermochemical applications. In this study, a computational fluid dynamics (CFD) model of a directly-irradiated cavity receiver has been developed. The CFD-domain is coupled with incoming radiation that is obtained by using Monte Carlo ray tracing (MCRT). Experimental campaigns...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. December 2019, 141(6): 061008.
Paper No: SOL-19-1068
Published Online: May 28, 2019
... transfer augmentation. In the present work, the effect of broken inclined ribs with rectangular cross-section on heat transfer and friction characteristics of the equilateral triangular passage duct has been analyzed using computational fluid dynamics. The effect of roughness parameters, viz., relative gap...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. December 2019, 141(6): 061005.
Paper No: SOL-18-1118
Published Online: May 20, 2019
... and hydrodynamic loading on the foundation are simulated under different flow conditions using high-fidelity computational fluid dynamics methods. Structural dynamic analysis is then carried out to estimate the stress field in the foundation and soil. Results from the comprehensive analysis indicate...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. August 2019, 141(4): 041009.
Paper No: SOL-18-1083
Published Online: February 19, 2019
... February 21, 2018; final manuscript received December 1, 2018; published online February 19, 2019. Editor: Robert F. Boehm. 21 02 2018 01 12 2018 canopy model computational fluid dynamics forest k– ε turbulence model Reynolds-averaged Navier–Stokes (RANS) equations wind modeling...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. June 2017, 139(3): 031001.
Paper No: SOL-16-1227
Published Online: January 16, 2017
... was to determine the relationships between small- and full-scale solar chimney system models. Computational fluid dynamics (CFD) was employed to model different building sizes with a wall-solar chimney utilizing a validated model. The window, which controls entrainment of ambient air for ventilation, was also...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. August 2016, 138(4): 041002.
Paper No: SOL-15-1392
Published Online: April 5, 2016
... of the reflector surfaces. 18 11 2015 24 02 2016 Computational fluid dynamics Heat transfer Structures Thermodynamics Today most of the commercial STE trough plants make use of the well-known LS3/Eurotrough imaging parabolic optics with evacuated receiver tubes with glass envelope...
Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. November 2011, 133(4): 044503.
Published Online: October 18, 2011
.... The latter can be done by hiding the convex part of the blades behind a shield or a vane. The present paper shows the results of two-dimensional computational fluid dynamics (CFD) computations, indicating a promising increase of the power coefficient from 0.3 to 0.5. 18 11 2010 28 06 2011 18...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. November 2011, 133(4): 041010.
Published Online: October 13, 2011
... models were developed which provided some basis for study; but all these exhibited high error margins when compared with actual turbine performance data and were only useful in some operating regimes. Modern computers are capable of more accurate computational fluid dynamics analysis, but most research...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. November 2011, 133(4): 041007.
Published Online: October 11, 2011
... and to provide valuable design insights. A procedure based on the calibrated Renormalizable Group Theory (RNG) k-ɛ turbulence model developed in Refs. [ 27 28 ], which has been validated against the real data from a large-scale hot water seasonal heat store, is used in the computational fluid dynamics (CFD...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. August 2011, 133(3): 031020.
Published Online: August 5, 2011
...Siri Sahib S. Khalsa; Clifford K. Ho Rigorous computational fluid dynamics (CFD) codes can accurately simulate complex coupled processes within an arbitrary geometry. CFD can thus be a cost-effective and time-efficient method of guiding receiver design and testing for concentrating solar power...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. August 2011, 133(3): 031015.
Published Online: July 28, 2011
... of parabolic trough receivers, and the simulation results correspond well with experimental measurements. 06 05 2011 11 05 2011 28 07 2011 28 07 2011 computational fluid dynamics convection design engineering flow simulation heat conduction heat losses heat radiation Monte...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. August 2011, 133(3): 031011.
Published Online: July 25, 2011
.... In this case, the internal radius of the cavity is constant (R in Fig. 1c c ), while the external reactor radius varies ( H i ). 16 02 2011 06 05 2011 25 07 2011 25 07 2011 chemical energy conversion chemical reactions chemical reactors computational fluid dynamics heat...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. May 2011, 133(2): 021004.
Published Online: March 22, 2011
... the most accurate of those previously published. 25 04 2007 19 01 2011 22 03 2011 22 03 2011 natural convection solar absorber-convertors natural convection open cavity receiver paraboloidal dish computational fluid dynamics The Australian National University...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. February 2011, 133(1): 011010.
Published Online: February 3, 2011
... is demonstrated via a computational fluid dynamic study of heat and mass transfer in the system over a range of Rayleigh, Lewis, Prandtl, and buoyancy ratio numbers expected in practice. Operation of a closed cycle heating system using aqueous CaCl 2 storage is sketched in Fig. 3 . Figure 3a...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. May 2010, 132(2): 021008.
Published Online: May 6, 2010
... designs and further development of the solid particle receiver. In this paper, we present information on the design and construction of the solid particle receiver and discuss the development of a computational fluid dynamics model of the prototype. We also present experimental data and model comparisons...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. August 2009, 131(3): 031018.
Published Online: July 15, 2009
..., and argon to produce and hydrolyze zinc nanoparticles. The performance of the quench device is assessed with computational fluid dynamics modeling and measurements of hydrogen conversion and particle size and composition. Numerical data elucidate the impact of varying jet flow rates on temperature...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. August 2009, 131(3): 031009.
Published Online: July 9, 2009
... 90 deg of azimuth (Fig. 12a ) and concentrates near the midspan of the blade at 180 deg with a smooth transition for in-between angles. 15 07 2008 05 01 2009 09 07 2009 aerodynamics blades computational fluid dynamics pipe flow torque wind tunnels wind turbines...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. August 2009, 131(3): 031001.
Published Online: June 10, 2009
...F. Barmpas; D. Bouris; N. Moussiopoulos Understanding building envelope performance and thermal mass effects is becoming increasingly important under the scope of low energy building construction and energy conservation. In the present paper, a three-dimensional computational fluid dynamics...
Journal Articles
Article Type: Technical Briefs
J. Sol. Energy Eng. May 2009, 131(2): 024503.
Published Online: March 25, 2009
... solar energy. The continuity, momentum, and energy governing equations that couple the rate of heat transfer to the Arrhenius-type reaction kinetics are formulated for an absorbing-emitting-scattering particulate media and numerically solved using a computational fluid dynamics code. Parametric...