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Thermal Comfort Analysis of an Office space
Key Results:
1. Predicted Mean Vote
2. Percentage of People Dissatisfied

This case validates the thermal management inside an LED against the CFD and experimental results obtained in the conference paper, Thermal Analyses and Measurements of Low-Cost COP Package for High-Power LED, using the Conjugate Heat Transfer v2.0 analysis type in SimScale.

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.

This project analyses a two stage housing scenario with Solar Chimney. The effect of Solar chimney on natural ventilation of a house is simulated. Key Results: 1. Air flow distribution inside the house 2. Thermal comfort inside the house 3. Stack effect due to solar radiation on the roofs

Heat dissipation of a LED with radial heat sink. Steady state Solid Heat transfer simulation to find out the Maximum temperature on the heat sink and LED source. Transient Heat transfer simulation to measure the time taken for the LED to heat up to the maximum temperature.

Mixing inside a closed tank.  The mixing is done with a rotating impeller (rotating zone)
We measure the time required for mixing to reach a threshold (0.5)

This project aims at validating the heating capacity of the HVAC system of a 3 story residential building, the indoor air quality design, and the thermal comfort in winter conditions and summer conditions

Flow through different vent diffuser designs and analysis of occupant thermal comfort.

Conjugate heat transfer simulation to analyse the thermal performance of water cooled transistors.

An application example of a swirl diffuser

This simulation aims a determining whether the temperature of the board of 2x 160W COB Series UV LED is below the recommended temperature of 40C  with a water cooling block running with 0.2m/s inlet velocity.

3D model from Philippe Cavalier (https://grabcad.com/library/water-cooling-led-heatsink-1)

This Geometry is distributed under:
Creative Commons Attribution-ShareAlike (CC BY SA) license

License is linked here:
https://creativecommons.org/licenses/by/4.0/

Geometry Originated from AccuCities:
https://www.accucities.com/new-free-city-model-samples-cardiff-bristol-dublin/

The geometry was modified for simulation purposes which may or may not have introduced inaccuracies. Fundamentally the modification was extending the topology and modification to topology. Additionally some surfaces had gaps, these were closed by moving some faces. 
The main points are:
You are free to
Share- copy and redistribute the material in any medium or format
Adapt- remix, transform, and build upon the material for any purpose, even commercially.

Under the following terms:

Attribution- You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
ShareAlike- If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
No additional restrictions- You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Powertrain for hypothetical electric vehicle for cooling

Natural Convection Analysis of a Warehouse
1. Addresses the thermal comfort for a small office setup inside a warehouse
2. Temperature and Velocity distribution inside the warehouse
3. Covers open and closed window scenarios

Utilisation of CFD in the design cycle for a ventilation Louvre and duct system

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.

The aim of this test case is to validate the following parameters of incompressible steady-state laminar fluid flow through a pipe.

Using convective heat transfer analysis to evaluate the cooling system of a data center. Different scenarios will be assessed.

Thermal Comfort of an office space. Looking at how the air moves from the circular diffusers (note the coanda) and whether the occupants are comfortable.

Centrifugal Pump with shrouded impeller, rotating at 350rad/s and simulated at 0.0085m3/s

Thermal comfort assessment of an office space using CFD with SimScale.

Testing two configurations for ventilation in a warehouse. Several heat sources are placed throughout the area. The objective is to evaluate how the different configurations perform in terms of predicted mean vote (PMV) & predicted percentage of dissatisfied (PPD). A total of 20 people (represented as cylinders) were placed inside of the warehouse.

Convective heat transfer analysis were carried out, with the radiation formulation on. By placing two simple outlets on the ceiling of the warehouse, ventilation was greatly improved and all 20 people were within the -0.5 to 0.5 PMV range.

This project aims at investigating the impact of trees as porous media in mitigating the wind effects affecting pedestrian wind  comfort.
A comparison between two scenarios is undertaken, one using an urban model with no trees and one using trees. The areas of significant improvement in wind comfort and reduction in wind velocity are highlighted.

Accurate wind pressure coefficients in thermal modelling software (building performance modelling) are critical to evaluating several key design outputs on buildings. The greatest impact of inaccurate wind pressure coefficients will be on the calculation of airflow through openings and thus ventilation, fresh air rates, cooling and overheating assessments can all be adversely affected. Most standard energy/thermal software has an oversimplified treatment of wind pressure which is also poorly understood and applied by software users. 

SimScale can quickly and accurately calculate transient wind flows and pressures around buildings and on building facades. These can be used as in input into energy/thermal software for more accurate building performance modelling.

Example of how  Pedestrian Wind Comfort CFD analysis can be used within an architects design process.

LED Spotlight project, aiming a bring the temperature of the diodes of a LED spotlight design below the maximum allowed temperature of 100C.

Investigation of occupant thermal comfort for a naturally ventilated warehouse.

This tutorial shows how to analyze the Heat transfer in a heat sink.

wind comfort study for London area of walkie talkie building

Used to demonstrate : 
- STL with layers workflow
- Detailed geometry handling (stadium)
- Additional results export:  3D volume data and surface pressures
- Simplified trees modeling (forest)
- Difference between 4 and 8 wind directions

Validating CO level during normal operations

HVAC project showcasing the modelling of louvres using the porous media concept.

Tutorial project for setting up the mesh using Hex-dominant automatic for external flow.

Tutorial project for a flow analysis of a pipe junction. The project only provides the geometry to start with. See our tutorials section to have a look at the step-by-step instructions to set up the simulation.

Electric panel-cabinet cooling analysis via CHT

This projects validates the incompressible flow simulation results of SimScale around the Ahmed body.

This project aims at assessing the pedestrian safety, comfort, and environmental impact of residential zones located in the district of Stockholm Royal Seaport.

Internal flow and thermal analysis to understand the thermal comfort within a large atrium.  This is a typical example of the type of applications that our AEC customers perform on a regular basis.

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