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the unit of particle erosion in CFX

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Old   September 28, 2015, 05:17
Default the units of particle erosion rate in CFX
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Bruce Xiao
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how to change the units of particle erosion rate show in cfx. the units is [kg m^-2 S-1] now, I want to change it to [(mg/g)/cm^2]. i tried to achieve it by "extra output variables", but failed.
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Last edited by xyq916; October 8, 2015 at 03:04. Reason: for right describe the problem
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Old   September 28, 2015, 05:38
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Lance
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You are comparing erosion rate density with erosion rate.
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Old   September 28, 2015, 23:55
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Quote:
Originally Posted by Lance View Post
You are comparing erosion rate density with erosion rate.
Thanks, but I cannot find the output variable "erosion rate". I can only find the "erosion rate density" when I create a contour.
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Old   September 30, 2015, 00:37
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Quote:
Originally Posted by xyq916 View Post
Thanks, but I cannot find the output variable "erosion rate". I can only find the "erosion rate density" when I create a contour.
You can make your own variable on variables tab.
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Old   October 4, 2015, 08:09
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Originally Posted by Antanas View Post
You can make your own variable on variables tab.
Thank you for your suggestion. I try to make a variable = [Paticle Erosion Rate Density]/[Particle.Wall Mass Flow Density]. but it's error. Do you have more specific suggestion about the user variable. Thanks!
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Old   October 5, 2015, 00:30
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Quote:
Originally Posted by xyq916 View Post
Thank you for your suggestion. I try to make a variable = [Paticle Erosion Rate Density]/[Particle.Wall Mass Flow Density]. but it's error. Do you have more specific suggestion about the user variable. Thanks!
Dunno. What kind of error?
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Old   October 5, 2015, 08:58
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Originally Posted by Antanas View Post
Dunno. What kind of error?
Thank you Antanas! The variable can be made successfully. but I can not show it in a contour for the follow reason (Fig.1). Then, I find the value of [Particle.Wall Mass Flow Density] is zero on the Wall(R1 Blade). I think that the reason is because all particles impact on Wall are rebounded. So the value is zero. What are your thoughts? Besides, do you have any better suggestions about how to define the variable[erosion rate]?
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Old   October 24, 2022, 17:02
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hello,Bruce Xiao
please i am working on the erosion in turbomachine,I wonder if you got a solution for your problem
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