The relationship between simulation and reality!!
Thread Content
Aspen is good, but how far does the simulation result deviate from reality? I think this is the core or fatal problem of all computer simulations of chemical processes. Or to put it another way: How confident are you that the results of simulation predictions will be used in actual production? I think that the mathematical description of chemical engineering processes is the core of answering the above questions.: The closer the mathematical description is to reality, the more reliable the results will be ； The more advanced the solution method for the model, the more reliable the results will be. However, the current development of mathematical models and model solving methods cannot yet meet the requirements of chemical process simulation. What do you think of the above issues?
If there is no simulation, use paper and pen to calculate without the help of a computer. Of course, mathematical models have limitations, but mathematical models will definitely become more and more perfect and have wider applicability. Look at problems from a developmental perspective. As for the solution method, it is a purely mathematical problem, so mathematics is also developing.
Better than nothing. Although it also has shortcomings
This problem is obvious. For any variable, for example, based on experience, you can only judge that it is between 1-100, but the software can judge that its value is between 30-50. It is clear at a glance which one of the two should be used.
If applied to actual production, specific calculations must be made. You cannot apply simulation only to find the better one among several situations. Also used as a reference in some situations
Mathematics and software are all developing, which will help the development of simulation and improve the ability of simulation to solve practical problems.
Regarding the relationship or comparison between simulation and reality, every student* The first problem faced by software people. After more than a year of contact and understanding of software, this is how I view this problem.: 1Although there are many cases where software calculations are inaccurate, there are still many places where software can calculate accurately. Combining it with actual production data is a very good auxiliary tool, which plays a huge role in saving time and effort. 2 Of course, there are times when the calculation is inaccurate. When the results obtained by the software are relatively good, they are "between 30-50". In short, software is a double-edged sword, and the effect depends mainly on the user.
Of course they complement each other, and it is best to combine the two. But for some very mature processes, simulation is enough.
They are mutually reinforcing, but without simulation software, it would be too difficult to design new projects.