Hello,
As the title suggests, I'm looking at trying to plot the flow rate or diameter for an orifice plate for a range of temperatures and pressures. I'd like to get a contour or 3D plot. However, whenever I do try the 3D or contour plots, I can't seem to get them to work unless I drop all units before hand and remember as I do the inputs, what my scale is. When dealing with anything temperature wise, this is rather frustrating.
Attached is my worksheet, of which I'm looking to get the plot working for a range of Temps & Pressures. I'm currently looking at sonic flows, and am wondering to what extent does the temperature and the pressure have an impact on the flow rate that will be produced for a given diameter, or vise versa. I'd also be curious, if say temperature over a range isn't very impactful, the graph of the mass flow rate vs. Pressure and Diameter. I'm interested in plotting it this way as a jet engine will change its output of T&P, and the mass flow you get out will vary over that range for a given diameter.
I can get 2D plots of the data to work out alright, just not the 3D or contour. I must be missing something either trivial or just not seeing it currently.
There are two functions in the sheet, one for calculating the Diameter as a function: D(m,T,P) and the Mass Flow as a function: M(D,T,P).
Would it be wiser to attempt some sort of demensional analysis?
