VMFL068

VMFL068
Axial Flow in an Eccentric Annulus

Overview

Reference

J.L.V. Neto, A.L. Martins, A.S. Neto, C.H. Ataide, M.A.S. Barrozo, “Simulated Velocity Profiles for Eccentric Annular Flow with Inner Rotation”, Manuscript, Federal University of Uberlandia, Brazil

Solver Ansys Fluent

Physics/Models

Steady flow, periodic, turbulence, RSM

Input File

VMFL068_FLUENT.cas

Project Files Link to Project Files Download Page

Test Case

This test case considers axial flow in an eccentric annulus without rotation of the inner cylinder. Eccentricity of the channel is 0.5. The Reynolds number is 26,600.

Figure 161: Flow Domain

Material Properties	Geometry	Boundary Conditions
Density = 896 kg/m³ Viscosity = 0.00146048 kg/m-s	Diameter, outer cylinder = 40.3 mm Diameter, inner cylinder = 20.1 mm Eccentricity = 0.5	Periodic Boundary is used with a Mass Flow Rate = 1.8368 kg/s.

Material Properties

Geometry

Boundary Conditions

Density = 896 kg/m³

Viscosity = 0.00146048 kg/m-s

Diameter, outer cylinder = 40.3 mm

Diameter, inner cylinder = 20.1 mm

Eccentricity = 0.5

Periodic Boundary is used with a Mass Flow Rate = 1.8368 kg/s.

Analysis Assumptions and Modeling Notes

The flow is steady. The velocity profile at the inlet is fully developed.

Results Comparison for Ansys Fluent

Figure 162: Comparison of Normalized Axial Velocity at Plane 2

Figure 163: Comparison of Normalized Axial Velocity at Plane 3