Energy Dissipation and Thermodynamic Characteristics Analysis During the Discharge Process of Hydraulic Gates

Hydraulic gates playAa central role in modern water resource management, where the thermodynamic characteristics and energy dissipation during the water discharge process significantly impact engineering efficiency and structural safety. Therefore, this study aims to in-depth investigate the thermodynamic characteristics and energy dissipation mechanisms during the water discharge process of hydraulic gates. The research background provides a review of the fundamental functions of hydraulic gates and the significance of the discharge process, highlighting the insufficient attention given in existing studies to energy dissipation and thermodynamic properties. Existing studies have primarily focused on macroscopic energy analyses, while the effects of microscopic entropy variations and material properties on discharge performance remain insufficiently explored. In this study, the concept of "discharge entropy" was introduced, and a comparative analysis between discharge entropy and thermodynamic entropy was conducted based on entropy theory and thermodynamic principles. A state variable solution method for discharge entropy was established, providing a novel theoretical framework for energy analysis in hydraulic disasters. Furthermore, the thermodynamic properties of the discharge process were examined in detail, including the thermal expansion coefficient, autogenous shrinkage deformation, and creep deformation of hydraulic gate materials. A computational model was proposed to offer more precise data support for the design and maintenance of hydraulic gates. These findings not only deepen the theoretical understanding of the thermodynamic behavior of hydraulic gates but also provide practical guidance for improving energy efficiency in engineering applications.