Title | Modeling a high Reynolds number chimney using Computational Fluid Dynamics |
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Authors | A. N. Mukhametov^{1}, T. S. Abdullov^{1}, Z. Y. Yakupov^{1}^{1}Kazan National Research Technical University named after A. N. Tupolev – KAI |

Annotation | A method for measuring the flow in a chimney in the presence of turbulent flow is being investigated in the article. The method is based on ultrasonic flow measurement, which is used as an automatic flue gas measurement system. A typical chimney and air flow configuration is considered using computational fluid dynamics (CFD) simulations using the OpenFoam software. A strong influence of vortex (turbulent) flow on the flow measurement error according to GOST R 8-611 is shown. Different configurations (number, orientation and position) of ultrasonic beams are compared on pre-formed flow profiles using CFD, according to GOST R 57700.8-2018 and GOST R 57700.17-2018. |

Keywords | chimney flow measurement, emission measurement, turbulent flow, ultrasonic flow meter, CFD |

Citation | Mukhametov A. N., Abdullov T. S., Yakupov Z. Y. ''Modeling a high Reynolds number chimney using Computational Fluid Dynamics'' [Electronic resource]. Proceedings of the International Scientific Youth School-Seminar "Mathematical Modeling, Numerical Methods and Software complexes" named after E.V. Voskresensky (Saransk, July 14-18, 2022). Saransk: SVMO Publ, 2022. - pp. 138-144. Available at: https://conf.svmo.ru/files/2022/papers/paper23.pdf. - Date of access: 31.01.2023. |

**© SVMO, National Research Mordovia State University, 2023**

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