how to add a total flow rate profile for the injection
hello to everybody,
I started today with fluent and i should study an injection spray in stagnant gas. I found out in a tutorial that it's possible to insert a flow rate profile in injection property selecting the box next "total flow rate", but i have only a "constant" value!!! please help me to add a profile rate flow instead a constant value. |
Hi,
Simplest way is to use a user-defined function (UDF). Go through this tutorial and you will know how to use a UDF: https://www.sharcnet.ca/Software/Flu...lu_tg_vof.html The UDF you're looking for is DEFINE_PROFILE, read this well documented (with examples) section: https://www.sharcnet.ca/Software/Flu...e_profile.html There is a learning curve when you start to use UDF but don't panic, it's not that hard if you read carefully the UDF manual, and you will gain a lot of flexibility at using Fluent. |
spray penetration plot
Thank you macfly for the quick reply,
i resolved my problem following the instructions in http://www.arc.vt.edu/ansys_help/flu..._pp_trans.html. I have another question now..i should want to plot spray penetration of 95% of mass in z axes as funcion of time.. but i don't know how to do...do you have any idea? thank you again. |
Oh I thought you wanted to apply a profile varying in space. Indeed, the method you're using just fine to apply a simple transient profile.
I don't know how you could plot 95% of a variable. But nothing is perfect in CFD, it's a world of approximations, and IMHO 95 % of something is pretty much the same as 100% of something and you could just plot 100% of the penetrated mass and have a very good idea of the 95% result. |
plot dispersed phase penetration
Dear macfly,
thank you for your reply, you are right :) can you help me to plot 100% of the penetrated mass in function of time in z axes? thank you |
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