There are no annular baffles in either EDR or HTRI; how should simulation calculations be carried out then?

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1. Determination of the baffle ring dimensions: In particular, the inner diameter should be chosen so as to ensure that the flow area is greater than that of the medium flowing through the inlet pipe of the housing (1.3 times? ). II. Determination of the baffle disk size: For the disk, it is necessary to determine its outer diameter; in other words, the flow area between the inner diameter of the shell and the outer diameter of the disk must be greater than the flow area of the medium passing through the inlet pipe of the shell, and it is based on this requirement that the outer diameter of the disk is determined. Three. It is about determining the type of baffle closest to the inlet and outlet; in my opinion, it should be a ring-shaped baffle, as this helps to induce turbulence rather than allowing flow in a laminar manner, which would affect heat exchange efficiency. How to simulate? How to determine the inner and outer diameters? Where are the detailed regulations?