VMFL001
VMFL001
Flow Between
Rotating and Stationary Concentric Cylinders
Overview
| Reference | F. M. White. Viscous Fluid Flow. Section 3-2.3. McGraw-Hill Book Co., Inc.. New York, NY. 1991. |
| Solver | Ansys Fluent, Ansys CFX |
| Physics/Models | Laminar flow, rotating wall |
| Input Files |
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| Project Files | Link to Project Files Download Page |
Test Case
Steady laminar flow between two concentric cylinders is modeled. The flow is induced by rotation of the inner cylinder with a constant angular velocity, while the outer cylinder is held stationary. Due to periodicity only a section of the domain needs to be modeled. In the present simulation a 180° segment (half of the domain shown in Figure 1: Flow Domain) is modeled. The sketch is not to scale.
| Material Properties | Geometry | Boundary Conditions |
|---|---|---|
|
Density = 1 kg/m3 Viscosity = 0.0002 kg/m-s |
Radius of the Inner Cylinder = 17.8 mm Radius of the Outer Cylinder = 46.28 mm |
Angular velocity of the inner wall = 1 rad/s |
Analysis Assumptions and Modeling Notes
The flow is steady. The tangential velocity at various sections can be calculated using analytical equations for laminar flow. These values are used for comparison with simulation results.