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STAR-CD 4.18 cannot generate liquid film??

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Old   January 14, 2013, 04:39
Default STAR-CD 4.18 cannot generate liquid film??
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zheng jianjun
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Dear all,
I want to calculate the liquid film in gasoline direct injection engine.
However, I met a strange problem.
When I use sTAR-CD 4.16 to do it, the liquid film can be generated normally.
But when I use STAR-CD 4.18, the liquid film thickness and mass is always zero.

Did anyone here meet this problem and help me?
Thanks in advanece.
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Old   June 23, 2013, 07:15
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Martin
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I had the same problem while playing with the wall film tutorial. I figured out that turining on the "droplet to film transition" in liquid films->film controls fixed that.

have a try
Martin
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Old   June 23, 2013, 20:41
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Thanks Martin,I got it!

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Originally Posted by wernsen View Post
I had the same problem while playing with the wall film tutorial. I figured out that turining on the "droplet to film transition" in liquid films->film controls fixed that.

have a try
Martin
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Old   June 25, 2013, 05:29
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was this the problem?
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Old   June 25, 2013, 21:05
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zheng jianjun
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I also tried in STAR-CD 4.16, the results almost the same no liquid film.
The support in CD-adapco told me that the wall temperature I set is higher than the boiling point of gasoline. So I should increase the Bs coefficient(default 1.0,Bai model) to a larger value such as 1.5.

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was this the problem?
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