Creo 教學專區 > Creo Flow Analysis 教學專區 > 其他教學專區 > Creo Flow Analysis Additional Tutorials > Tutorial 1 - Natural Convection > Natural Convection: Overview
  
Natural Convection: Overview
This tutorial simulates natural convection in a concentric annulus. Natural convection is a phenomenon in which fluid motion happens due to density differences between the fluid layers caused by temperature gradients, in the absence of other external forces. The inner wall temperature of the concentric annulus is 373K, which is 46K higher than the temperature of the outer wall. The working fluid is air. You can see the geometry and conditions for the simulation in the figure below:
1. Outer Radius = 0.04628 m
Specified Temperature = 327 K
2. Inner Radius = 0.0178 m
Specified Temperature = 373 K
3. Top and Bottom Surfaces = Symmetry
Air Viscosity = 3.548e-05 Pa.s
Air Conductivity = 0.02614 W/m-K
Air Specific Heat = 1005 J/Kg-K
The exercises in the Flow Analysis simulation are:
1. Natural Convection: Exercise 1—Setting up the Model
2. Natural Convection: Exercise 2—Creating Boundaries
3. Natural Convection Exercise 3—Preparing the Mesh
4. Natural Convection: Exercise 4—Defining Physics Modules
5. Natural Convection: Exercise 5—Assigning Boundary Conditions
6. Natural Convection: Exercise 6—Creating a Monitoring Point
7. Natural Convection Exercise 7—Performing the Simulation
8. Natural Convection: Exercise 8—Analyzing Results