Thermal Boundary Layer and Momentum Boundary Layer
Boundary layers are an important concept in fluid mechanics, and they play a crucial role in many engineering applications. When a fluid flows over a solid surface, two types of boundary layers are formed: thermal and hydrodynamic. These boundary layers are characterized by distinct features, and understanding them is crucial for various engineering applications, including heat transfer, aerodynamics, and fluid mechanics. Thermal Boundary Layer The thermal boundary layer is a thin layer of fluid that forms near a solid surface, where heat transfer takes place between the solid surface and the fluid. When a fluid flows over a surface that has a different temperature than the fluid, heat is transferred from the surface to the fluid or vice versa. The thermal boundary layer is formed due to the temperature difference between the solid surface and the fluid. In a fluid that is in motion, molecules in the fluid that are in contact with the solid surface experience a tran...