10. Basics of Fluid Mechanics – II (contd.,)
Fluid mechanics involves understanding concepts such as path lines, streak lines, and stagnation points. Key aspects include observing how fluid particles move through different flow conditions and the critical nature of points where velocity becomes zero, known as stagnation points. The chapter also delves into accelerations and the continuity equation, highlighting the relationship between mass flow rates in steady flow conditions.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Path lines represent the trajectory of individual fluid particles in motion.
- Streak lines illustrate the locus of fluid particles passing through a specific point.
- Stagnation points occur where fluid velocity is zero due to obstructions in the flow.
- Acceleration is a vector quantity defined in terms of both local and convective components.
- The continuity equation states that the mass rate of flow entering a system equals the mass rate of flow exiting it.
Key Concepts
- -- Path Line
- The actual path traveled by an individual fluid particle over a period of time, representing a Lagrangian concept in fluid flow.
- -- Streak Line
- The locus of fluid particles that have passed through a prescribed point in the flow, typically visualized using tracer fluids.
- -- Stagnation Point
- A point in the flow field where the velocity of the fluid is zero, indicating no motion at that point.
- -- Acceleration
- The rate of change of velocity, which can be broken down into local acceleration and convective acceleration in fluid mechanics.
- -- Continuity Equation
- An equation that asserts that for a steady flow, the mass flow rate in equals the mass flow rate out, ensuring conservation of mass.
Additional Learning Materials
Supplementary resources to enhance your learning experience.