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-   -   high drag value (http://www.cfd-online.com/Forums/fluent/36271-high-drag-value.html)

sulfi April 5, 2005 06:49

high drag value
 
hi i am modelling only the under water portion of planing craft. we are using sinkage and trim values obtained from experiments. at low speed fluent is giving drag comparable with experiments. but at high speeds(5m/s) the drag values are 5 times the experimental.

what should i do to get the correct drag.

i have tried using all the turbulence models and differnt domain and also using different mesh sizes.

expecting your reply asap

thanking u in advance

sulfi

Sham April 8, 2005 19:27

Re: high drag value
 
Hi Sulfi,

Can you tell me your domain and your mesh size. Are you sure that your reference values are correct?

Sham.


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