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3 phase setting (erodible soil, water, air)

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Old   July 11, 2017, 07:32
Smile 3 phase setting (erodible soil, water, air)
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Azril Hazim
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Hi everyone.
I just need to know how best to model a pipeline on erodible seabed under influence of sea current & waves. Please refer attached sketches for details.

I tried modeling it but currently face three problems:

i) How to import geo-mechanical soil properties onto the erodible seabed? I know that Static Structural analysis allows importing soil properties from Engineering Data toolbox, but not sure how this can work in Fluent
ii) How to include pipeline bouyancy effect into the design
iii) How to use Open Wave Channel for more than 2 phases

Input for parameters are:
Wave length 280m, Wave height 13m, water depth 56m, T=14.76s
Pipeline diameter 176mm, pipeline bouyancy 268N/m
Soil shear stress 9.1e3 N/m3, soil density 2.77e3 kg/m3

Thank you!

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