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
About:
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
More filters
Journal ArticleDOI
Experimental validation of k–ε RANS-CFD on a high-pressure homogenizer valve
Andreas Håkansson,Laszlo Fuchs,Fredrik Innings,Johan Revstedt,Christian Trägårdh,Björn Bergenståhl +5 more
TL;DR: This study compares CFD simulations using the methods from previous studies with experimental measurements in a model HPH valve to show that the region upstream of the gap can be described accurately regardless of turbulence model and that the gap region can be captured by using one of the more refined k−e models.
Journal ArticleDOI
Influence of various aspects of low Reynolds number k-ε turbulence models on predicting in-tube buoyancy affected heat transfer to supercritical pressure fluids
TL;DR: In this article, heat transfer to supercritical pressure fluids was modeled for normal and buoyancy affected conditions using several low Reynolds number k-e models, including the Launder and Sharma, Myong and Kasagi, and Abe, Kondoh and Nagano, with the predictions compared with experimental data.
Journal ArticleDOI
Single-phase flow in a pulsed column: Particle Image Velocimetry validation of a CFD based model
TL;DR: In this article, a Computational Fluid Dynamics (CFD) model was developed for the simulation of a disc and doughnut pulsed column and the simulation results have been compared to Particle Image Velocimetry (PIV) measurements synchronized on the pulsation period.
Journal ArticleDOI
Prediction of transpiration effects on heat and mass transfer by different turbulence models
TL;DR: In this paper, the authors compare transpiration effects as predicted by different turbulence models with classical suction and blowing multipliers based on stagnant layer theories, in an attempt to clarify their quantitative implications on the predicted mass transfer rates.
Journal ArticleDOI
Modelling enhancement of cross-ventilation in sheltered buildings using stochastic optimization
TL;DR: A novel and systematic methodology is proposed to enhance the accuracy of the k - e model for the urban study applications such as cross-ventilation in the sheltered buildings with an airflow rate prediction error less than 8% while other RANS models predicted the airflow rate with up to 70% error.
References
More filters
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.