creator Kabre, Julienne advisor Li, Xiaofan Transport of ionic particles is ubiquitous in all biology. The Poisson-Nernst- Planck (PNP) equations have recently been used to describe the dynamics of ion transport through biological ion channels (besides being widely employed in semiconductor industry). This dissertation is about the design of a numerical scheme to solve the PNP equations that preserves exactly (up to roundoff error) a discretized form of the energy dynamics of the system. The proposed finite difference scheme is of second-order accurate in both space and time. Comparisons are made between this energy dynamics preserving scheme and a standard finite difference scheme, showing a difference in satisfying the energy law. Numerical results are presented for validating the orders of convergence in both time and space of the new scheme for the PNP system. The energy preserving scheme presented here is one dimensional in space. A highlight of an extension to the multi-dimensional case is shown. Submitted by Erma Thomas (thomase@iit.edu) on 2018-03-20T22:59:12Z No. of bitstreams: 1 etdadmin_upload_525956.zip: 1824723 bytes, checksum: 43e7b0f6a9a4ac6bb08630b835ecf3ea (MD5) Made available in DSpace on 2018-03-20T22:59:12Z (GMT). No. of bitstreams: 1 etdadmin_upload_525956.zip: 1824723 bytes, checksum: 43e7b0f6a9a4ac6bb08630b835ecf3ea (MD5) Previous issue date: 2017-07 Ph.D. in Applied Mathematics, July 2017 2017 2017-07 http://hdl.handle.net/10560/4239 en Energy-Preserving Finite Difference Ion Channel Poisson-Nernst-Planck Dissertation born digital application/pdf In Copyright http://rightsstatements.org/page/InC/1.0/ Restricted Access MATH / Applied Mathematics Illinois Institute of Technology Affiliated department