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A low-Reynolds-number two-equation turbulence model for predicting heat transfer on turbine blades
Suhas V. Patankar,Rodney C. Schmidt +1 more
- pp 155-167
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In this paper, a modified form of the Lam-Bremhorst low-Reynolds number kappa-epsilon turbulence model was developed for predicting transitional boundary layer flows under conditions characteristic of gas turbine blades.Abstract:
A modified form of the Lam-Bremhorst low-Reynolds number kappa-epsilon turbulence model was developed for predicting transitional boundary layer flows under conditions characteristic of gas turbine blades. The application of the model to flows with pressure gradients is described. Tests against a number of turbine blade cascade data sets are included. Some additional refinements of the model that were made in recent months are explained.read more
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Study of the structure of turbulence in accelerating transitional boundary layers
TL;DR: In this paper, a combined experimental and analytical program has been conducted to examine transitional, accelerating boundary layer flows with high levels of freestream turbulence, showing that boundary layer turbulence is highly anisotropic in the early stages of transition.
References
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Journal ArticleDOI
Turbulence models for near-wall and low Reynolds number flows - A review
Journal ArticleDOI
The calculation of low-Reynolds-number phenomena with a two-equation model of turbulence
W.P. Jones,Brian Launder +1 more
TL;DR: In this article, the authors present numerical predictions of various turbulent shear flows in which the structure of the viscous sublayer exerts appreciable influence on the flow, where the turbulence energy and its dissipation rate are calculated by way of transport equations which are solved simultaneously with the conservation equations for the mean flow.
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A Modified Form of the k-ε Model for Predicting Wall Turbulence
C. K. G. Lam,Klaus Bremhorst +1 more
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Natural Transition of Boundary Layers—The Effects of Turbulence, Pressure Gradient, and Flow History
B. J. Abu-Ghannam,R. Shaw +1 more
TL;DR: In this paper, the natural transition of boundary layers is investigated for a flat plate in a low-speed wind tunnel with free-stream turbulence intensities ranging from 0.3 to 5 per cent.
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Influence of free-stream turbulence on boundary layer transition in favorable pressure gradients
TL;DR: In this article, a large-scale, two-dimensional incompressible transitional boundary layer flows were analyzed on a heated flat wall with a zero pressure gradient for two levels of streamwise acceleration.