SimScale simulation projects by PS19 | Page 1

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This project aims at evaluating how much air from the exhaust of a building AHU reaches the balconies and windows of its facade, as well as the other surrounding buildings.  Multiple wind direction scenarios are evaluated.
The CAD model includes a detailed, central building with balconies and windows, from where the exhaust air is released. The surrounding building are modeled as simple blocks.
This project uses incompressible analyses with passive scalars. The use of passive scalar is to model the concentration of air exhaust at any location. - Copy

The purpose of this test case is to validate the mean surface pressure on a building with balconies, using the Lattice Boltzmann model for three wind directions. - Copy

The CAARC building is a validation case that has for many years been used to validate CFD codes. This case has been shown in the past validating both URANS and LES turbulence models, where the trend has been that RANS/URANS has predicted the windward facade well but not predicted the sides and Leeward facades. In contrast, LES has shown a good agreement with experimental results, however, there is still in general, an over-prediction for the sides and leeward facade, and a worse prediction on the windward facade. In this project we look at SimScales LBM implementation, PaceFish from Numeric Systems, and how well it performs using Hybrid models, K-omega SST DDES, and k-omega SST IDDES models. These models use wall models based upon K-omega SST but then transition to the highly accurate LES model further from the wall. - Copy

This project simulates instantaneous turbulent wake of a cylinder body via LES method.

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