A new k-ϵ eddy viscosity model for high reynolds number turbulent flows

Shih, Tsan‐Hsing; Liou, William W.; Shabbir, Aamir; Yang, Zhigang; Zhu, Jiang

doi:10.1016/0045-7930(94)00032-t

Cited by 4,927 publications

(2,101 citation statements)

References 15 publications

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“…In the present study, the realisable k-ε model (Shih et al, 1995), an improvement of the widely used standard k-ε models, was used. The model requires two additional equations for the turbulent kinetic energy (k) and turbulent dissipation rate (ε).…”

Section: Governing Equationsmentioning

confidence: 99%

Influence of optical errors on the thermal and thermodynamic performance of a solar parabolic trough receiver

et al. 2016

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HIGHLIGHTS• Effect of optical errors on performance of a parabolic trough receiver is presented.• Actual heat flux profiles were obtained using Monte Carlo ray tracing and presented.• Thermal and thermodynamic analysis of the receiver is determined numerically.• Effect of optical errors on heat flux and temperature distribution is investigated.• Influence of optical errors on receiver entropy generation rates is presented. ABSTRACTThis paper presents results of an investigation covering the influence of optical errors on the thermal and thermodynamic performance of a solar parabolic trough system. The optical performance was evaluated by using Monte Carlo ray tracing for slope errors and specularity For the range of parameters considered, the intercept factor reduces by up to 21% while the overall thermal efficiency reduces by up to 17% as optical errors increase. Receiver thermodynamic performance is shown to deteriorate as slope errors increase.

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Section: Governing Equationsmentioning

confidence: 99%

Influence of optical errors on the thermal and thermodynamic performance of a solar parabolic trough receiver

et al. 2016

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“…Since attention is restricted to steady-state solutions of symmetrical flow at zero yaw, a symmetry plane was introduced to reduce the computational effort. Solution of the governing Navier-Stokes equations was obtained using three different RANS-based turbulence models, namely the Spalart-Allmaras (SA) [9], realizable k-ε (RKE) [10] and Menter's SST k-ω (SSTKO) model [11]. These employed second order discretization for the pressure equation and the QUICK [12] scheme for the momentum and turbulence equations.…”

Section: Cfd Analysis Of Wind Tunnel Flows: Verification and Validationmentioning

confidence: 99%

An experimental and computational study of the aerodynamic and passive ventilation characteristics of small livestock trailers

Gilkeson

Thompson

Wilson

et al. 2009

Journal of Wind Engineering and Industrial Aerodynamics

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“…"Realizable" here means that the model satisfies some constraints that are consistent with the physics of turbulence (T. H. Shih et al, 1995).…”

Section: Differencing Schemementioning

confidence: 99%

Investigation on the Core Bypass Flow in a Very High Temperature Reactor

Hassan¹

2013

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A new k-ϵ eddy viscosity model for high reynolds number turbulent flows

Cited by 4,927 publications

References 15 publications

Influence of optical errors on the thermal and thermodynamic performance of a solar parabolic trough receiver

Influence of optical errors on the thermal and thermodynamic performance of a solar parabolic trough receiver

An experimental and computational study of the aerodynamic and passive ventilation characteristics of small livestock trailers

Investigation on the Core Bypass Flow in a Very High Temperature Reactor

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