Computational fluid dynamics analysis of a micro-scale chamber for measuring organic chemical emission parameters.

ABSTRACT: Computational fluid dynamics simulations are used to model the velocity field and the transport of a passive scalar within a micro-scale chamber used to measure diffusional transport through various building materials. Comparisons of solutions obtained using a steady, laminar flow assumption with velocity measurements obtained from hot-wire anemometry show that the numerical method generally underpredicts the near surface velocity field. The results improve for higher flow rates and for carpeted test materials, modeled as a porous resistive layer. Calculations involving scalar transport within the upper chamber of the sampling device are performed for different flow rates and Schmidt numbers. The results are used to develop a model for the convective mass transfer coefficient, correlated a

SUBMITTER: Edwards JR 

PROVIDER: S-EPMC10776009 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature