GRADUIERTENKOLLEG 1554

Central research topics

- Pore-scale modeling and X-ray tomographic visualization of transport phenomena in porous media

- Pore network modeling and optical visualization of drainage and imbibition in etched micro models

- Pore network modeling of salt transport and crystallization in drying porous media

- Fluid-solid coupling in discrete pore and particle networks

- Estimation of continuum-scale effective parameters from pore network simulations

- Morphological characterization of particle agglomerates by X-ray tomography  

Academic background

Selected publications

[1]      R. Wu, A. Kharaghani, E. Tsotsas. Capillary valve effect during slow drying of porous media. International Journal of Heat and Mass Transfer, 2016; 94:81-86.

[2]        R. Wu, A. Kharaghani, E. Tsotsas. Two-phase flow with capillary valve effect in porous media. Chemical Engineering Science, 2016; 139:241-248.

[3]        Kharaghani, C. Kirsch, T. Metzger, E. Tsotsas. Structural changes and liquid distribution during convective drying of gels. Colloid Process Engineering; Eds. M. Kind, W. Peukert, H. Rehage, H. P. Schuchmann, Springer, 2015;  93-112.

[4]        A. Rahimi, T. Metzger, A. Kharaghani, E. Tsotsas. Interaction of droplets with porous structures: pore network simulation of wetting and drying. Drying Technology, 2015; DOI: 10.1080/07373937.2015.1099106.

[5]        Y. Sun, A. Kharaghani, T. Metzger, J. Müller, E. Tsotsas. Lotion distribution in wet wipes investigated by pore network simulation and X-ray micro tomography. Transport in Porous Media, 2015; 107:449-468.

[6]        N. Vorhauer, Y.J. Wang, A. Kharaghani, E. Tsotsas, M. Prat. Drying with formation of capillary rings in a model porous medium. Transport in Porous Media, 2015; 110(2):197-223.

[7]        A. Kharaghani, C. Kirsch, T. Metzger, E. Tsotsas. Micro-scale fluid model for drying of highly porous aggregates. Computers & Chemical Engineering, 2013; 52:46-54.

[8]        Y.J. Wang, A. Kharaghani, T. Metzger, E. Tsotsas. Pore network drying model for particle aggregates: assessment by X-ray microtomography. Drying Technology, 2012; 30:1800-1809.

[9]        A. Kharaghani, T. Metzger, E. Tsotsas. An irregular pore network model for convective drying of particle aggregates. Chemical Engineering Science, 2012; 75:267-278.

[10]    A. Kharaghani, T. Metzger, E. Tsotsas. A proposal for discrete modeling of mechanical effects during drying, combining pore networks with DEM. AIChE Journal, 2011; 57:872-885.