![]() The results show that model coefficient variability has significant effects on the streamwise mean velocity in the recirculation region near the reattachment point and turbulence intensity along the free shear layer. The mean values are reported for the flow output parameters of interest along with their associated uncertainties. The Latin Hypercube Sampling method is employed for the uncertainty quantification purposes as it requires a smaller number of samples compared to the conventional Monte Carlo method. The study is carried out for a flow over a 2D backward-facing step configuration. Both equations involve various model coefficients about which adequate knowledge is assumed known in the form of probability density functions. It consists of model transport equations for the turbulence kinetic energy and the rate of turbulent dissipation. In this work, the widely used k - ɛ turbulence model is considered. These coefficients and parameters are obtained through experiments performed on elementary flows, and they are subject to uncertainty. The article is concerned with the propagation of uncertainties in the values of turbulence model coefficients and parameters in turbulent flows. Journal of Forensic Sciences (JOFS) 1972-2005 Backfile.Journal of Composites, Technology & Research (JCTR) 1978-2003 Backfile.Journal of ASTM International (JAI) 2004-2012 Backfile.Cement, Concrete and Aggregates (CCA) 1979-2004 Backfile.Smart and Sustainable Manufacturing Systems (SSMS). ![]() Materials Performance and Characterization (MPC).Journal of Testing and Evaluation (JTE).Advances in Civil Engineering Materials (ACEM).Journal of Verification, Validation and Uncertainty Quantification.Journal of Thermal Science and Engineering Applications.Journal of Offshore Mechanics and Arctic Engineering.Journal of Nuclear Engineering and Radiation Science.Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems.Journal of Nanotechnology in Engineering and Medicine.Journal of Micro and Nano-Manufacturing.Journal of Manufacturing Science and Engineering.Journal of Engineering Materials and Technology.Journal of Engineering for Sustainable Buildings and Cities.Journal of Engineering for Gas Turbines and Power.Journal of Engineering and Science in Medical Diagnostics and Therapy.Journal of Electrochemical Energy Conversion and Storage.Journal of Dynamic Systems, Measurement, and Control.Journal of Computing and Information Science in Engineering.Journal of Computational and Nonlinear Dynamics.Journal of Autonomous Vehicles and Systems.ASME Letters in Dynamic Systems and Control.ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering.Mechanical Engineering Magazine Select Articles.
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