UFR 1-06 Best Practice Advice: Difference between revisions
Jump to navigation
Jump to search
| Line 24: | Line 24: | ||
<ul> | <ul> | ||
<li>The flow can be treated as axisymmetric.</li> | <li>The flow can be treated as axisymmetric.</li> | ||
<li>For a grid-independent resolution of the George ''et al.'' [[UFR_1-06_References|[3]]] | <li>For a grid-independent resolution of the George ''et al.'' [[UFR_1-06_References|[3]]] | ||
| Line 29: | Line 30: | ||
should be used in the (radial × axial) directions. At least | should be used in the (radial × axial) directions. At least | ||
10 nodes should be used radially to resolve the plume source.</li> | 10 nodes should be used radially to resolve the plume source.</li> | ||
<li>Discretization schemes should be at least second-order accurate.</li> | <li>Discretization schemes should be at least second-order accurate.</li> | ||
<li>For further advice on boundary conditions, see [[UFR_1-06_Test_Case#Boundary_Conditions|Test Case]]</li> | <li>For further advice on boundary conditions, see [[UFR_1-06_Test_Case#Boundary_Conditions|Test Case]]</li> | ||
Revision as of 15:09, 30 March 2010
Axisymmetric buoyant far-field plume in a quiescent unstratified environment
Underlying Flow Regime 1-06
Best Practice Advice
Best Practice Advice for the UFR
Key Physics
The key physics to be captured in this UFR is the self-similar behaviour of a spreading axisymmetric buoyant plume.
Numerical Modelling Issues
- The flow can be treated as axisymmetric.
- For a grid-independent resolution of the George et al. [3] plume, at least (40 × 100) grid nodes should be used in the (radial × axial) directions. At least 10 nodes should be used radially to resolve the plume source.
- Discretization schemes should be at least second-order accurate.
- For further advice on boundary conditions, see Test Case
Computational Domain and Boundary Conditions
Physical Modelling
Application Uncertainties
Recommendations for further work
Contributed by: Simon Gant — Lea Associates
© copyright ERCOFTAC 2010