One of the first rules that every scientist is supposed to learn is that when the model contradicts the data, the model is wrong.
The second thing that scientists and engineers learn is that when the data completely is completely confirmed by what is seen in the model...
Don’t be at all surprised when you change the experimental conditions that your computer model no longer agrees with the physical world - - - eg, the computer is WRONG. ... and that the error is often more costly than the experiment, and makes you realize that your computer model was wrong.