An immersed boundary method for simulations of flow and mixing in micro-channels with electro kinetic effects Online publication date: Mon, 06-Apr-2020
by C. Ahamed Saleel; Irfan Anjum Badruddin
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 20, No. 2, 2020
Abstract: Immersed boundary method (IBM) is a methodology in which any real stationary or moving complex bodies in flow or heat transfer or mixing field is treated by distinct forcing functions introduced in the respective governing equations, thereby its presence is dealt with much easiness in the computational domain. This work proposes an extension of an IBM based on discrete forcing approach to simulate pressure driven electro-osmotic flow and mixing enhancement in constricted micro channels. The fractional-step based temporal discretisation and finite-volume basedspatial discretisation on a staggered mesh are used to solve the governing equations. Concentration forcing function is a parameter, which is newly defined in this model to satisfy the no-flux boundary condition for species concentration on the IB and is introduced in convection-diffusion equation. The present computational model is validated with the published experimental and numerical results in the literature and finally some sample results are also exemplified.
Online publication date: Mon, 06-Apr-2020
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the Progress in Computational Fluid Dynamics, An International Journal (PCFD):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email firstname.lastname@example.org