It won't be hot for the fans in 2018.

If you've ever been to sports matches or concerts in European arenas, you've certainly noticed how easy it is to breathe there, regardless of the number of spectators. Meanwhile, the solution to this problem is quite difficult: the air in a large arena area must circulate, ensuring the same comfortable temperature in all rows of the stands, in the utility rooms, as well as effective smoke extraction in case of fire or smoke. Finally, a powerful ventilation system should not disturb the audience with its noise.

The reconstruction of the Luzhniki Stadium– the largest in Russia– includes the implementation of an expensive ventilation system in order to make it possible to lay a natural lawn (which is one of the FIFA requirements). Previously, the natural grass covering in the Luzhniki stadium could not take root precisely because of poor ventilation. But replacing the glazing with a blown grid will allow designers to save on the smoke extraction and fire extinguishing system.

Today, engineers calculate the effectiveness of air conditioning systems in advance, identifying weaknesses that need to be improved. For example, Evgeny Sergeevich Teslya, Deputy General Director for Sustainable Development at Bureau of Technology, confirms that the microclimate of sports arenas can be comfortable not only abroad, but also in Russia.

"A striking example of this is the Large Ice Arena located in Sochi, which was built as part of the 2014 Winter Olympics," says Evgeny Sergeevich. "Our company has carried out mathematical modeling of the speed and temperature fields of the facility in order to identify the "problematic" aspects of creating comfortable conditions at the facility for 12,000 viewers and eliminate them by implementing a set of energy-efficient solutions."

The simulation showed that the jets of the nozzles are not able to destroy the cold cushion that naturally arises above the arena. As a result, only the upper rows of the stands warm up – there the temperature is a comfortable 25-26 degrees, and in the front rows the audience stays in the invigorating coolness of 19-21 degrees.

Today, the construction and reconstruction of sports arenas for the 2018 FIFA World Cup is underway in 11 Russian cities. The 100+Forum Russia high-rise and unique construction forum in September will bring together specialists from companies involved in the design and construction of stadiums. At the forum, they will have a unique opportunity to share their experiences and receive expert advice. The issues of mathematical modeling of the climatic situation in ice arenas and stadiums will be considered during the section "Application of modern modeling technologies in the design of high-rise and unique buildings and structures." For more information, see The draft business program of the 100+ Forum Russia