Stretch effects of vortex tubes in vorticity fields for microdevices design

• Grant number: 18/18398-4
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2019
• End date: December 31, 2019
• Field of knowledge: Engineering - Chemical Engineering
• Principal Investigator: Savio Souza Venancio Vianna
• Grantee: Arthur Lopes Valente
• Host Institution: Faculdade de Engenharia Química (FEQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

Concerning microfluidics applications, either in the development of new products and processes or in the replacement of conventional procedures, the thorough comprehension of the physical phenomena which rule the flow of fluid inside micro-devices is of paramount importance. One of the main limitations is the time scale of mixture between fluids that is mainly governed by molecular diffusion. Computational fluid modelling arises as an interesting tool for both evaluation of the mixing index and optimization of the micro-device geometry. The present work addresses the numerical modelling and investigation of flow in capillary scale for the development of micro-devices with emphasis in the process of formation of localized vorticity fields.