Validating Ionic Liquid Simulations: Error Analysis and Implications

AI Thread Summary
The discussion centers on issues encountered while simulating an ionic liquid using Lammps. The author initially found their pVT simulation data to align closely with experimental results, with an error margin under 3% for volume comparisons. However, upon comparing pressure data at constant volume and temperature, they discovered significant discrepancies, with errors averaging 50% and sometimes reaching 300%. This raises concerns about the validity of the simulation results and whether they can be used for further calculations. The responses indicate a lack of sufficient detail in the author's explanation, making it difficult for others to provide meaningful assistance or insights into the problem.
hosein
Dear all,
I've been working on an ionic liquid that I was involved in simulating with Lammps, but when I started to write its paper, I found a mistake (or a neglect) that makes almost all the results useless. I would always compare the pVT simulation data with the corresponding experimental data with an error below 3% for the comparison of V of simulation and experimental (in P, T similar), and so I assumed my simulations are validated, but when a couple of weeks ago, I compared p of simulation and experimental (in V, T similar), I found a very weird error of in average 50, sometimes 300%. What is this mean?
I mean, can I assume that my simulation data are validated and use them for further calculation?

Best regards
 
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This is messy. You failed to give us enough information, and you ask for a detailed answer.

No way to help you based on what you wrote.
 
Borek said:
This is messy. You failed to give us enough information, and you ask for a detailed answer.

No way to help you based on what you wrote.
--------simulation--------experimental
----------T1----------------------T1
V1-------P1----------------- press1
V2 -------P2----------------press2
.-----------. ---------------------.
.-----------.----------------------.
.----------- . --------------------- .
T1=T1
E%=((P1,2,...-press1,2,...)/press1,2,...)*100=50 or sometimes >200
if I fit the press values with V1,V2, ... and produce a formula to compare them, then I use P1, P2, ... to produce the corresponding volume results( V'1, V'2, ...)
the error would be:
E%=((V1,2,...-V'1,2,...)/V1,2,...)*100= 3%<
Best regards
 
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