In this paper, a numerical model of a drying oven with a rotating
fan was generated. The problem was solved using the commercial
CFD package Fluent. The numerical results show very good
agreement with the measured values obtained during the heating
process. On the basis of the developed model, a number of new device
modifications were simulated to improve temperature uniformity
within the chamber of the device.
As a result, in the most promising variant, a new shape and position
of the heater and the baffle directing the air flow were identified
as being more effective. In this way, the warmed-up air of
relatively equal temperature was directly distributed into the de- vice storage space. In the final stage of the study, a proposed prototype
was tuned by changing the position and diameter of the baffle
to direct effectively the flow between internal and external
walls. The resulting temperature uniformity improved successfully
in the modified prototype and the device was finally commercialised.
It thus appears that the presented mathematical model can
also be applied to other types of devices.