Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science
  • HEAT SUPPLY, VENTILATION, AIR CONDITIONING, LIGHTING
  • Effect of Side Walls on the Character of Air Three-Dimensional Turbulent Flow in the Room
  • UDC 628.83
    Vladimir N. VARAPAEV, e-mail: varapaevvn@mgsu.ru
    Nerses S. SIMONYAN, e-mail: n.s.simonyan@gmail.com
    Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
    Abstract. This article presents the results of numerical simulation of airflows in a ventilated room with ANSYS CFX. In particular, it considers the three-dimensional isothermal case with the use of , , SST и BSL models; an evaluation of the character of three-dimensionality in the flow considered was made. The formulation of the problem fully corresponds to the selected experimental model for which the measurements of air flow, velocity profiles and pulsation energy of turbulence were made in the aerodynamic laboratory of MGSU using PIV-technology. For an evaluation of the non-stationarity presence in the airflow considered, the calculations were made both for stationary and non-stationary models. It is shown that in the case of the model in the middle part of the area two-dimensional and three-dimensional calculations give approximately the same results for both stationary and non-stationary case. When using the model, the symmetric flow is observed only in case of the use of non-stationary model and with a stationary model, the flow can be asymmetric with respect to the average cross-section character. Tasks of this type are necessary for the analysis and calculation of ventilation and air conditioning systems of buildings for various purposes.
    Key words: numerical simulation, three dimensional flow, turbulence model, ANSYS CFX, ventilated room, stationary and non-stationary calculations.
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  • For citation: Varapaev V. N., Simonyan N. S. Effect of Side Walls on the Character of Air Three-Dimensional Turbulent Flow in the Room. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 12, pp. 55-59. (In Russian).

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