When a heat exchanger misses its duty or exceeds its pressure drop, the cause is usually inside: uneven flow between tubes or channels, bypass streams, dead zones. A CFD study shows where, and what a design change would do before you build it.

Questions this work answers

Why is the pressure drop or heat duty different from the design calculation?
How evenly is the flow distributed between tubes, passes or plate channels?
Which change to baffles, nozzles, headers or tube shape is worth making?

What the work covers

Shell-side and tube-side or channel flow, with conjugate heat transfer through the walls where the question needs it
Flow distribution, local heat-transfer coefficients, temperature fields and pressure losses by section
Checks: mass and energy balances, mesh assessment, comparison with a datasheet, a correlation or your test data

What it cannot tell you

Fouling, contact resistance and manufacturing tolerances are assumptions unless you supply data. A full-size exchanger is often modelled as a representative section, and the report states what that simplification leaves out.

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Track record

Patent RU-2848594: Heat-exchanger bundle with circular and drop-shaped tubes.
Book: Development of thermal-energy models using ANSYS.