Momentum and Thermal Boundary Layer Flows — Lesson 1

This lesson covers the concept of transport phenomena of non-Newtonian fluids, focusing on momentum and thermal boundary layer flows. It delves into the analysis of boundary layer flows, the momentum equation, and the energy equation for these flows. The lesson also discusses how to obtain the boundary layer thickness for both momentum and thermal boundary layers. It further explains the basics of boundary layers at a solid surface, the concept of velocity gradients, and the separation of flow regions. The lesson concludes with the development of integral momentum and energy equations for boundary layer flows.

Video Highlights

02:24 - Discussion on the concept of boundary layers and the separation of flow regions.
09:38 - Discussion on the concept of velocity gradient and its importance in boundary layer flows.
34:00 - Discussion on the concept of heat transferring boundary layer and the development of integral energy equation.
40:21 - Explanation of the concept of momentum and thermal boundary layer and the development of integral momentum equation.
48:28 - Conclusion of the lecture with references for further reading.

Key Takeaways

• Boundary layer flows are analyzed by obtaining the momentum and energy equations.
• The boundary layer thickness for both momentum and thermal boundary layers can be determined.
• Velocity gradients play a crucial role in boundary layer flows.
• The flow region is divided into two: one where velocity gradients exist and another where they are almost zero.