10/24/2011

Fluid Flow and Heat Transfer in a Mixing Tee Part B

Calculate

In ‘Run Calculation’

– press ‘Check Case...’

see ‘No recommendations to make at this time’

– set ‘Number of Iterations’ to 200

– press ‘Calculate’

OK to ‘Continue after replacing settings file’

Problem setup has changed the mesh – for example, the coordinates changed by scaling. There are many other changes that FLUENT can make – for example, adapting the mesh to increase the number of cells where the solution requires it.

The link from Mesh to FLUENT in Workbench needs care – are you starting a new Problem Setup with a new mesh, or are you finding a new Solution on the old mesh?

Calculating

Preliminary post-processing

In ‘Graphics and Animations’, select Contours, press ‘Set Up...’

– select ‘Filled’ contours of ‘Turbulence...Wall Yplus’ on ‘wall-fluid’

– press ‘Display’ – note almost all values are between 30 and 200

Check mass and heat balance

In ‘Reports’, select ‘Fluxes’ and press ‘Set Up...’

– compute ‘Mass Flow Rate’ and ‘Total Heat Transfer Rate’
for inlets and outlets – check that ‘Net Results’ are small

Exit FLUENT

Exit FLUENT

– accept the default, ‘Continue without saving’

In Workbench, double-click ‘Results’ to launch CFD-Post

– in the FLUENT session, we have completed Setup and Solution

CFD-Post

The results are loaded

CFD-Post displays the outline (wireframe) of the model

– viewer toolbar buttons allow you to manipulate the view

Temperature contour plot

Press the contour button

– accept the default name ‘Contour 1’

– select ‘Location’ to be ‘wall fluid’, and ‘Variable’ to be ‘Temperature’

– press ‘Apply’

http://www.cadfamily.com/html/Article/Fluid%20Flow%20and%20Heat%20Transfer%20in%20a%20Mixing%20Tee%20Part%20B_883_1.htm

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