Abstract
Differential equations are frequently used for modeling systems in the physical sciences, biology, and other important real-world disciplines. Oftentimes, however, these equations cannot be solved exactly, so suitable computer algorithms are necessary to provide an approximated solution. While these computational simulations fail to exactly represent all behaviors of the true solution, they can be constructed to exactly, or very closely, reproduce certain properties which are key to the physical or scientific applications of a problem. This paper explores a computational method specifically constructed for modeling the behavior of systems with linear damping, or a reduction of energy, introduced in them. The method was designed to be conformal symplectic, and closely reproduce dissipation of physical properties such as linear and angular momentum, mass, and energy, caused by the damping. The algorithm was constructed in such a way that it maintains low computational cost to implement. Additionally, the method demonstrates favorable accuracy and stability properties in simulation. The method can also handle more complex scenarios, such as systems with forcing terms, and nonlinear systems. In these cases, it has been shown to hold advantages over other commonly used methods in particular circumstances.
Thesis Completion
2023
Semester
Fall
Thesis Chair/Advisor
Moore, Brian
Co-Chair
Schober, Constance
Degree
Bachelor of Science (B.S.)
College
College of Sciences
Department
Mathematics
Language
English
Access Status
Campus Access
Length of Campus-only Access
3 years
Release Date
12-15-2023
Recommended Citation
McIntosh, Fiona G., "Second Order Exponential Time Differencing Methods for Conformal Symplectic Systems" (2023). Honors Undergraduate Theses. 1503.
https://stars.library.ucf.edu/honorstheses/1503