The trail of perfumes

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Joana Pereira (Author) Other; Patrícia Costa (Author) Other; Maria C. Coimbra (Author) FEUP; Alírio E. Rodrigues (Author) Other

Journal

Title: AICHE Journal

Vol. 64 No. 7

Pages: 2890-2897

ISSN: 0001-1541

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 0 Citations

Scopus

INSPEC

Other information

Authenticus ID: P-00P-DPG

DOI: 10.1002/aic.16155

Abstract (EN): A methodology is proposed for modeling the diffusion of fragrances released from a moving source. First, we started with a one-dimensional model considering molecular diffusion of -pinene in air as the only mass transport mechanism. The validation was performed in a diffusion tube, and a system was developed to move the scented source along the axial direction. Results showed that experimental data fitted well with the numerical simulation, suggesting this model as a valid tool to describe the trail of a fragrance released from a moving source for low Re of the order of 10. In the case of a person walking at the speed of 1.34 m/s in a room or corridor inside a building, three-dimensional models are required and mass transport of the perfume to the surrounding air will be dominated by turbulent diffusion or eddy diffusion D-t which is two orders of magnitude higher than molecular diffusion. (c) 2018 American Institute of Chemical Engineers AIChE J, 64: 2890-2897, 2018

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8