3 phases mixture setting initial value

hosseiniazim · May 1, 2020, 23:52

Hi

i want put constant value of water and oil in a talk and use vof wave to create a wave. i dont know how i can give them their value like 50cm of my tank be water then 10 cm oil and rest of tank be air .how i can define this initial values?
thanks.

hosseiniazim · May 3, 2020, 00:57

i think i need to define new function like this but i cant understand this code can any one explain it?

Function Name
Initial Distribution (Air)
Definition
($${Position}[0] >= -0.001) ? 1 : 0

ping · May 7, 2020, 09:46

you could use the and logical operator in an expression eg
($${Position}[0] >= -0.001 && $${Position}[0] < 2.3 ) ? 1 : 0
say set the value to 1 if x is greater than -0.001 and less than 2.3 otherwise set to 0.
see the help at User Interface > Expressions > Expression Syntax > Operators and Functions

May 1, 2020, 23:52	3 phases mixture setting initial value	#1
hosseiniazim New Member Azim Join Date: May 2020 Posts: 11 Rep Power: 5	Hi i want put constant value of water and oil in a talk and use vof wave to create a wave. i dont know how i can give them their value like 50cm of my tank be water then 10 cm oil and rest of tank be air .how i can define this initial values? thanks.

May 3, 2020, 00:57	initial function	#2
hosseiniazim New Member Azim Join Date: May 2020 Posts: 11 Rep Power: 5	i think i need to define new function like this but i cant understand this code can any one explain it? Function Name Initial Distribution (Air) Definition ($${Position}[0] >= -0.001) ? 1 : 0

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May 7, 2020, 09:46		#3
ping Senior Member Ping Join Date: Mar 2009 Posts: 556 Rep Power: 20	you could use the and logical operator in an expression eg ($${Position}[0] >= -0.001 && $${Position}[0] < 2.3 ) ? 1 : 0 say set the value to 1 if x is greater than -0.001 and less than 2.3 otherwise set to 0. see the help at User Interface > Expressions > Expression Syntax > Operators and Functions