It is an Eddy viscosity model which is a class of turbulence models used to calculate the Reynolds stresses. The k-epsilon (\(k-\epsilon\)) model for turbulence is the most common to simulate the mean flow characteristics for turbulent flow conditions. Hence, the difference between different turbulent models is the methodology to calculate turbulent viscosity. Observing equation 2 we realize that once we solve for the turbulent viscosity \((\mu_t)\) we can solve the RANS equation 1. $$ Įquation 2 is a combined equation for the shear and normal components of Reynolds stresses. The Reynolds-averaged Navier Stokes (RANS) equation in tensor form\(^1\) can be written as: This document sheds light on the popular k-epsilon turbulence models. The SimScale CFD solver uses its in-house version of the widely accepted industry standard turbulence models. SimScale allows different methods to model the turbulent effects appearing in a CFD simulation. SimScale Learning Center Access 85 SimScale CFD & FEA training videos.SimScale CPD for AEC Achieve a SimScale CPD for AEC professionals.Webinars & Workshops Register for upcoming webinars & watch on-demand replays.Press Releases Read our latest press releases & news stories.Forum Discuss & get help on CAE & SimScale topics.Whitepapers Download & read comprehensive CAE whitepapers.Validation Cases View experimental/analytical validated simulations.Documentation Read detailed info on how to use the SimScale platform.Blog Stay up-to-date with the latest articles.Sustainable Design Unlock sustainability solutions & innovation.Digital Transformation Accelerate digital transformation with cloud simulation.Cloud Solution for CAE Simulation Deploy simulation across your entire organization.BIM Optimize & inform your BIM workflow for maximum results.Vibration Analysis Measure vibrations & optimize structural designs.Valve CFD Test & optimize valve designs to increase performance. Urban Microclimate Optimize designs with wind & thermal comfort analysis.Turbomachinery CFD Optimize & improve efficiency of turbomachinery designs.Nonlinear Structural Analysis Optimize structural designs with changing stiffness.Multiphase Flow Simulate multiphase flow with accuracy & speed.Indoor Environment Simulate & optimize indoor environment designs.Electronics Thermal Management Optimize your electronics cooling designs.Valves Test, validate & optimize several valve design versions.Turbomachinery Increase machinery performance & reduce R&D timelines.Marine Predict & optimize the performance of your design.Manufacturing Save on physical prototyping costs & time.Machinery & Industrial Equipment Reduce costs & time-to-market with digital prototyping.Life Sciences & Healthcare Simulate & optimize medical & pharma equipment design.Engineering Services Virtually test designs to deliver quality products.Energy Test & optimize turbines, pumps, PV systems & more.Electronics & High Tech Design more robust & reliable electronics faster.Consumer Products Innovate, prototype & optimize products faster.Automotive & Transportation Increase automotive engineering innovation and efficiency.Aerospace & Defense Use simulation to evaluate designs & predict performance.Architecture, Engineering & Construction (AEC) Meet the demands of modern architecture & sustainability.Simulation Methods See what’s under the hood of SimScale’s simulation capabilities.Simulation Infrastructure Management Learn how SimScale comes with built-in SPDM capabilities.Security Secure platform with data protection & privacy standards.Integrations & Partners How SimScale integrates with your existing workflow.API Customize & automate simulation workflows.Electromagnetics Low-frequency electromagnetics simulations.Thermodynamics Heat transfer, thermomechanical & thermal management.Structural Mechanics Static, dynamic, vibration & thermomechanical analysis.Fluid Dynamics Laminar & turbulent,(in)compressible & multiphase flow.What’s New? See the latest features & product updates.Overview Learn how SimScale helps engineers innovate faster.
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