Journal ArticleDOI
Application of the energy-dissipation model of turbulence to the calculation of flow near a spinning disc
Brian Launder,B. I. Sharma +1 more
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This article is published in Letters in Heat and Mass Transfer.The article was published on 1974-11-01. It has received 2691 citations till now. The article focuses on the topics: K-omega turbulence model & K-epsilon turbulence model.read more
Citations
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Low-Reynolds-Number Turbulent Flows in Locally Constricted Conduits: A Comparison Study
Zhe Zhang,Clement Kleinstreuer +1 more
TL;DR: In this article, the authors compared four low-Reynolds-number (LRN) turbulence models and found that the renormalization group (RNG) and Menter κ-ω models amplify the flow instabilities after tubular constrictions and hence fail to capture the laminar flow behavior at low Reynolds numbers.
Journal ArticleDOI
Continuous Adjoint Methods for Turbulent Flows, Applied to Shape and Topology Optimization: Industrial Applications
TL;DR: In this article, a general formulation of the continuous adjoint method for incompressible flows, under the commonly used assumption of frozen turbulence, is presented, and necessary addenda are presented in order to deal with the differentiation of both low and high-Reynolds (with wall functions) number turbulence models; the latter requires the introduction of the so-called adjoint wall functions.
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Model-based design of transverse wall oscillations for turbulent drag reduction
TL;DR: In this article, the Boussinesq eddy viscosity hypothesis is used to quantify the effect of fluctuations on the mean velocity in flow subject to control, and the resulting correction to the turbulent mean velocity induced by small-amplitude wall movements is then used to identify the optimal frequency of drag-reducing oscillations.
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A study of turbulence under conditions of transient flow in a pipe
Shuisheng He,John Derek Jackson +1 more
TL;DR: In this article, a detailed investigation of fully developed transient flow in a pipe has been undertaken using water as the working fluid, and a dimensionless delay parameter τ+[= √2τUτ0/D] is proposed to describe it.
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A Modified Low-Reynolds-Number Turbulence Model Applicable to Recirculating Flow in Pipe Expansion
TL;DR: In this paper, a modified low-Reynolds-number k-e turbulence model is developed to predict the near-wall limiting flow behavior while avoiding occurrence of the singular difficulty near the reattachment point as applying to recirculating flow in sudden-expansion pipe.
References
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Journal ArticleDOI
The prediction of laminarization with a two-equation model of turbulence
W.P. Jones,Brian Launder +1 more
TL;DR: In this article, the local turbulent viscosity is determined from the solution of transport equations for the turbulence kinetic energy and the energy dissipation rate, and the predicted hydrodynamic and heat-transfer development of the boundary layers is in close agreement with the measured behaviour.
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.
Journal ArticleDOI
Heat and mass transfer from rotating cones
C. L. Tien,D. T. Campbell +1 more
TL;DR: In this article, heat transfer by convection from isothermal rotating cones is investigated experimentally by measuring the sublimation rate from naphthalene-coated cones and using the analogy between heat and mass transfer.