Mechanical Engineering Exam > Mechanical Engineering Videos > Heat Transfer > Numerical: Forced Convection External Flow - 1
Numerical: Forced Convection External Flow - 1 Video Lecture | Heat Transfer - Mechanical Engineering
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FAQs on Numerical: Forced Convection External Flow - 1 Video Lecture - Heat Transfer - Mechanical Engineering
| 1. What is forced convection external flow? |  |
Ans. Forced convection external flow refers to the flow of a fluid, such as air or a liquid, over the surface of an object, driven by an external force, such as a fan or a pump. In this type of flow, the fluid motion is caused by an external source rather than natural convection, which relies on buoyancy forces.
| 2. How is forced convection external flow different from natural convection? | |
Ans. Forced convection external flow is different from natural convection as it is driven by an external force, such as a fan or a pump, while natural convection is caused by buoyancy forces resulting from temperature differences. Forced convection external flow can provide faster and more controlled heat transfer compared to natural convection.
| 3. What factors affect forced convection external flow? | |
Ans. Several factors can affect forced convection external flow, including the velocity of the fluid, the temperature difference between the fluid and the object's surface, the properties of the fluid (such as viscosity and density), the surface roughness of the object, and the geometry of the object.
| 4. How is forced convection external flow analyzed in chemical engineering? | |
Ans. In chemical engineering, forced convection external flow is often analyzed using numerical methods and computational fluid dynamics (CFD) simulations. These techniques involve solving the governing equations of fluid motion, such as the Navier-Stokes equations, along with appropriate boundary conditions to predict the flow behavior and heat transfer characteristics.
| 5. What are some applications of forced convection external flow in chemical engineering? | |
Ans. Forced convection external flow has various applications in chemical engineering, such as in heat exchangers, cooling systems, and chemical reactor design. It is also relevant in areas like air conditioning, ventilation systems, and fluidized bed reactors. Understanding the behavior of forced convection external flow is crucial for optimizing these processes and improving energy efficiency.
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Dec 18, 2024 Last updated |
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