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  • 1 Post By Steve Silvester

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Old   July 17, 2006, 04:18
Default Materials Problem
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I get a message appearing when I select engine oil from the fluent database. It reads

Material engine-oil New property "Molecular Weight" has been added. Selecting constant method for "Molecular Weight" -- data required.

I assume this means that I am required to specify the molecular weight of the oil, if this is the case where/how do i input this additional data.

I am a novice in the use of Fluent and would appreciate help with this.

Thank you in advance

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Old   July 17, 2006, 06:17
Default Re: Materials Problem
Steve Silvester
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If you look in the >Define>Materials menu and select the fluid you've just copied from the database (engine oil) you'll see that fluent will have set a default value for molecular weight for you. Anytime you want to change material properties just change the value in the box - simple as that. The bit where fluent says 'data required' occurs everytime you copy a new material so it's not making a request in this case.



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