Heat exchanger numerical simulation

For CFD simulations, it is still necessary to consider whether they should be linked to experiments or practical applications; mere simulations hold little value unless they are intended to be published in international journals. Preprocessing in simulations is very important; mesh segmentation has a significant impact on the results, and even if the results converge, it does not necessarily mean that the mesh is appropriate ； For 2D simulations, computer specifications aren’t a major concern, but when working with 3D models, it’s recommended that the user opt for a computer with high specifications or use multiple computers together; otherwise, it can be extremely exhausting ； Post-processing of data is crucial; simulation calculations are merely a labor-intensive task that relies heavily on machines. However, the subsequent integration of data and the presentation of results have a significant impact on the overall outcome of the simulation. I hope the above is a bit helpful to the original poster.

Numerical simulation techniques are also useful for practical design; for example, there is great variation in the approaches used for designing distribution plates in shell-and-tube heat exchangers, and numerical simulation results can provide valuable guidance in such cases. Furthermore, I think modeling is more difficult than calculation; although high computational power is required, having a reasonable model can still significantly reduce the computation time