Seminar 62 — RANS vs LES: Modeling Airflow in Built Environment


Conference Proceeding by ASHRAE, 2021



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RANS (Reynolds-averaged Navier-Stokes) and LES (Large Eddy Simulation) are two most popular computational fluid dynamics methods in modeling airflows for built environment. To help users decide which approach to be used in their applications, this seminar illustrates their pros and cons via various examples.

  1. Numerical Prediction of Time-Dependent Flows in Natural Ventilation< /br>Malcolm J. Cook, Ph.D., Member, Faisal Durrani, Ph.D. and James J. McGuirk, Ph.D., Loughborough University,Loughborough, United Kingdom
  2. Comparing Unsteady RANS and LES with Lagrangian Particle Modeling in a Mechanically Ventilated Space< /br>Shichao Liu, Ph.D., Associate Member, Worcester Polytechnic Institute, Worcester, MA
  3. The Difference between LES/DES and RANS for Outdoor Simulations< /br>Goncalo Pedro, Ph.D., Rowan Williams Davies & Irwin, Guelph, ON, Canada
  4. LES Vs RANS for Modeling Indoor Air Flow< /br>Vimaldoss Jesudhas, Ph.D., RWDI, Guelph, ON, Canada

Citation: ASHRAE 2021 Virtual Seminar, Extended Abstracts

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