Autors: Ivanov, M. P., Mijorski S.
Title: Velocity distribution in simulated exhale air flow, with virtual breathing thermal manikins
Keywords: CFD, Virtual Thermal Manikin, Breathing Flow Modelling

Abstract: The presented paper illustrates a CFD based study on the velocity distribution in simulated exhale air, by two different types of virtual breathing thermal manikins. The used manikins differ mainly in their shape. The first one represents physiologically identified female body, with high degree of geometrical accuracy. The second manikin is constructed by simplified polygonal shapes, designed to match the overall 95th percentile of the anthropometric size of a standard person. A performance comparison between the two manikin models is made, by velocity distribution analyses in the simulated exhale air. Also, different steady state and transient modelling techniques (RANS, URANS, DES, and LES) are implemented and compared. The numerical results showed in general a good correlation with the reality, and high degree of similarity, between the different flow patterns. However, there is a tendency for over-prediction of the manikins’ thermal plume impact over the exhaled air flows.



    “7th International Conference on Thermal Equipment, Renewable Energy and Rural Development – TE-RE-RD 2018”, Drobeta Turnu Severin – Romania, pp. 461-466, 2018, Romania, ISBN ISSN: 2359 – 7941

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