Mathematical Modeling of an Air Flow Leakage with the Jets Interaction at the Variable Mode

Myroniuk, Khrystyna; Voznyak, Orest; Savchenko, Olena; Kasynets, Mariana

doi:10.1007/978-3-031-14141-6_29

Cited by 4 publications

(2 citation statements)

References 32 publications

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“…The application of computer modeling presents itself as a more cost-effective approach for investigating aerodynamic phenomena pertaining to airflow around buildings. This mode of simulating building aerodynamics, inclusive of the evaluation of natural and hybrid ventilation, stands as a pivotal component in the examination of wind pressure effects (Tominaga et al, 2016;Zhai et al, 2011;Chu, 2023;Van Hooff et al, 2017;Zhang et al, 2023;Perén et al, 2015;Shirzadi et al, 2018;Myroniuk et al, 2023;Hirose et al, 2022;Voznyak et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Examining Wind Flow's Impact on Multi-Storey Buildings: A Quest for Quality Improvement

Myroniuk,

Furdas,

Zhelykh

et al. 2024

Production Engineering Archives

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This scientific article delves into the intricacies of wind flow's impact on multi-storey buildings, presenting results from a series of experimental investigations. The research encompasses an examination of wind interactions with buildings of varying heights and geometric profiles. Furthermore, it unveils the effects of tall structures on the natural ventilation and smoke evacuation systems of shorter edifices, considering different wind flow directions. The study leverages specialized wind tunnel and measurement techniques for a comprehensive analysis of wind-induced loads on buildings. The acquired insights furnish crucial input for the design of single-story temporary modular constructions within densely populated urban areas, subject to wind-induced stresses. Additionally, they hold potential applicability in the advancement of energy-efficient technologies and strategies within the realm of construction. The acquired dataset underscores the criticality of scrutinizing wind flow's impact on structures of varied typologies and dimensions and will allow to significantly improve the quality and efficiency of modern buildings in the future.

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Section: Introductionmentioning

confidence: 99%

Examining Wind Flow's Impact on Multi-Storey Buildings: A Quest for Quality Improvement

Myroniuk,

Furdas,

Zhelykh

et al. 2024

Production Engineering Archives

Self Cite

View full text Add to dashboard Cite

show abstract

“…In addition, air distribution is very important in energy performance [27][28][29][30][31]. The importance rises at variable air volume ventilation [32][33][34][35][36][37]. The device has no simultaneously operated neighbouring air inlet and outlet comparably with a recuperative one, which avoids the exhausting inlet air compared with a recuperative analogue.…”

Section: Introductionmentioning

confidence: 99%

Analysis of critical radius of insulation for horizontal pipes

Vakulenko

Mileikovskyi

Tkachenko

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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Thermal insulation of pipelines is used in different industries including agricultural technologies. Energy efficiency depends on heat losses, which, in turn, are limited by heat insulation. Decentralized ventilation is effective in rural low-rise buildings. One such device used is a regenerative ventilator like Blauberg Vento or Vents TwinFresh. There is a task to improve the efficiency of its operation. Investigation of heat recovery processes in thin ducts is taking place. Experimental uncertainty decreases with better heat insulation of the experimental setup. But in heat transfer literature, there is a notion of the critical radius of insulation. More the insulation radius should decrease its effectiveness due to the development of the outer surface. In the theory, the heat transfer coefficient of the outer surface is assumed to be constant. In this study, laminar convective flow around the outer horizontal cylindrical insulation surface of a large thickness is considered. The formula of the average heat transfer coefficient is used that takes into account the Grashof number. While the insulation thickness is increased, the surface temperature and the heat transfer coefficient are decreased. The function of thermal resistance dependence on the outer diameter related to the inner one and its derivative have been analysed. As a result, an asymptotic increase of thermal resistance was observed without extremums. So, there are no critical diameters if the insulation is so large to obtain laminar convective flow. The maximum radius of thermal insulation should be determined not as critical, but as expedient. Thus, it can provide 5-20% lower heat transfer resistance than the asymptotic one. The radius of thermal pipe insulation of technological devices should be accepted based on technical and economic justification.

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The Influence of the Interaction of Opposing Non-coaxial Round Jets on the Leakage Velocity Uniformity of the Resulting Air Flow

Kasynets,

Voznyak,

Savchenko

et al. 2024

Lecture Notes in Civil Engineering

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Mathematical Modeling of an Air Flow Leakage with the Jets Interaction at the Variable Mode

Cited by 4 publications

References 32 publications

Examining Wind Flow's Impact on Multi-Storey Buildings: A Quest for Quality Improvement

Examining Wind Flow's Impact on Multi-Storey Buildings: A Quest for Quality Improvement

Analysis of critical radius of insulation for horizontal pipes

The Influence of the Interaction of Opposing Non-coaxial Round Jets on the Leakage Velocity Uniformity of the Resulting Air Flow

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