Investigation of mixing zones subject to thermal fatigue

Examples of flow modelling using Code_Saturne.
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Alexandre Douce

Investigation of mixing zones subject to thermal fatigue

Post by Alexandre Douce » Sat Sep 05, 2009 1:34 am

Thermal fatigue is an important subject in the life-time management of piping components. For example, in T-junction, high frequent temperature fluctuations as a result of mixing of the hot and cold fluids may cause material degradation.

Code_Saturne is used to compute the fluid flow with a L.E.S. model, which gives access to the instantaneous temperature fluctuations. Code_Saturne is coupled to the finite element thermal code Syrthes, which propagates the temperature fluctuations into the wall thickness. Then, the instantaneous temperature field inside the wall is transfered to EDF thermomechanic tool Code_Aster, to perform mechanical computations that yield the instantaneous mechanical stresses seen by the T-junction and the following elbow.

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Alexandre Douce

Re: Investigation of mixing zones subject to thermal fatigue

Post by Alexandre Douce » Fri Sep 11, 2009 9:53 pm

an article is avaliable here
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cs_thermal_fatigue_example.png

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