The boundary layer is a thin layer of fluid near a surface where the flow characteristics are significantly influenced by the viscosity and physical properties of the fluid. It is an important area of study in fluid dynamics, aerodynamics, and heat transfer, as it plays a crucial role in determining the drag and heat transfer characteristics of a surface. Researchers study the boundary layer to understand the flow patterns, turbulence, and heat transfer processes that occur near a surface. By studying the boundary layer, researchers can develop strategies to reduce drag, improve aerodynamic performance, and enhance heat transfer efficiency in various engineering applications, such as aircraft design, wind turbine technology, and heat exchanger design. Overall, the boundary layer research area is vital for advancing our understanding of fluid dynamics and improving the performance of various engineering systems.