Environment Modelling and Building Physics

Contaminants dispersion

Contaminants dispersion modelling includes following different types of analysis and studies:
  • Transport and tracing of gases: for assessment of plant pollutions dispersion, highways/traffic pollution, urban environment pollutions (kitchens, exhaust of ventilation systems and others). Smell and odor dispersion in enclosed and semi-enclosed spaces.

  • Air ventilation studies: for assessment of the air quality for newly proposed site (amenity areas, terraces, balconies, air intakes of the HVAC systems) in densely built and polluted urban and suburban regions.


Contaminants dispersion modelling could be performed for following building types:
  • Opened spaces: city centers, bus and train stations, plaza areas, plant sites and others.

  • Semi-enclosed spaces:train and vehicle tunnels, bus and train stations, stadia, amphitheatres and covered pedestrian walk-throughs, shopping centres and others.

  • Enclosed spaces: enclosed bus and train stations, stadia, meeting halls, shopping centres, atrium spaces, universities, schools, offices, houses, apartment buildings and others.



Research and science publications in the specific field of numerical simulations:

  1. "Numerical Investigation of Metabolic CO2 Distribution in an Occupied Ventilated Classroom", Simova I., Markov D., Mijorski S., Computational Engineering, 12th International Ph.D course under the patronage of DAAD, Germany, 2016
  2. "Simulator of Metabolic CO2 Time Variation in Occupied Spaces Under Natural Ventilation", Mijorski S., CFD Based Design of Indoor Environment Course Proceeding, CLYMACADEMY course, Pamporovo, Bulgaria, 16-23 October, 2008


Full list research and science publications in the field of numerical simulations is presented here!

Continuous professional development in the specific field of numerical simulations:

  1. "OpenFoam General Programing", von Karman Institute for Fluid Dynamics, Belgium, 2016
  2. "6th International Symposium on Computational Wind Engineering", CWE2014, University of Hamburg, Germany, 2014
  3. CFD for Atmospheric Flow and Wind Engineering”, von Karman Institute for Fluid Dynamics, Belgium, 2013
  4. Computational Engineering”, DAAD / CERDECEN, Technical University of Sofia, 2011
  5. Indoor Air Quality and Human Body Exposure”, CERDECEN, Technical University of Sofia, 2009


Full list of training courses and continuous professional development in the field of numerical simulations is presented here!

Figures and Videos

Urband wind environment
Pedestrian level traffic pollution - top view



Urband wind environment
Pedestrian level traffic pollution - close up view



Urband wind environment
Plant pollution - iso surface



Urband wind environment
Pedestrian level plant pollution - top view



Urband wind environment
Odor dispertion in an atrium space



Odor dispertion in an atrium space



Odor dispertion in an atrium space



Contact Us

SoftSim Consult Ltd. Mladost-4, bl.438 1715, Sofia Bulgaria


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smijorski@softsimconsult.com