What Is Table (xyz, time)?

Similar to the (x,y,z) table, an (xyz, time) table has a column of ’X’ values, ’Y’ values and, in three-dimensional cases, ’Z’ values that specify the position, in default units, of each point (row) in the table. The points are considered unordered in the file.

In addition, this method causes simulation time to be considered when Simcenter STAR-CCM+ reads the table. The data columns would appear as follows:

X Y Z VAR1[t=T1] VAR1[t=T2] VAR1[t=T3] VAR2[t=TT1] VAR2[t=TT2]

where, for each column header, VARn is the name of a particular variable and x in [t=x] is the time stamp for the column. The file that is shown above contains two time series, VAR1 and VAR2. VAR1 has data points for all X,Y,Z at times T1, T2 and T3, and VAR2 has data points for times TT1 and TT2. (The values of Tn and TTn for each n can be different.)

The following is a simple example of how an (xyz, time) table might look with actual data:

X Y Z Temperature(K)[t=1s] Temperature(K)[t=2s] Temperature(K)[t=3s]

1 2 3 300 400 500

In the Simcenter STAR-CCM+ GUI, the time stamps are removed and you are able to select a variable name for the data property in the method. As the simulation iterates, the profile is filled with values from the table based on the time, using the interpolation method that is set for the Interpolation property.