1D modeling refers to a type of mathematical and computational modeling that focuses on analyzing and understanding systems in one dimension. This type of modeling is often used in engineering, physics, and other scientific disciplines to simplify complex systems and make predictions about their behavior. 1D modeling typically involves creating mathematical equations or computer simulations that represent the system in a linear or one-dimensional fashion, allowing researchers to study how variables change over a single axis or direction. By using 1D modeling, researchers can gain insights into the behavior of systems and make informed decisions about design, optimization, and control.