A Study on the Movement Characteristics of Fuel in the Fuel Tank during the Maneuvering Process

To investigate the movement characteristics of fuel within an aircraft’s tank during maneuvering, this study employs numerical simulations using Finite Pointset Method (FPM) with specific boundary conditions and excitation. The simulation results successfully capture complex phenomena free surface fluctuations, surging, rolling, breaking, along corresponding changes in center gravity induced by movement. Throughout maneuvering process, longitudinal experiences minimal variations, whereas aerodynamic exhibits significant reaching a range 0.47 m. consistently shifts backward displacement 0.41 maximum height attained liquid’s aircraft measures approximately 0.22 m, upper panel’s wing tank, resulting certain level impact on panel. force generated process amounts to 2.3 × 105 pascals, point action located at junction transverse frame findings work provide support for safe design systems.