The development and testing of a rotating single-disk viscous pump are described. This pump consists of a 5.0 mm diameter spinning disk with a 1 mm diameter inflow, and a pump chamber, which are separated by a small gap that forms the fluid passage. The walls of the pump chamber form an annulus with an outer radius of 5.0 mm. Different pump configurations were tested, varying chamber heights from 50 to 200 micron. For each configuration, the pump’s performance was analysed at several rotation speeds in a range from 10,000 rpm up to 24,000 rpm. Mass flow rate up to 23 ml/min and pressure rise up to 4.5 kPa were obtained experimentally with pure water. Numerical time-dependent CFD simulations were also carried out on the same configurations to study the flow field structure inside the pump. The numerical results were validated by comparison with the experimental data.
MINIATURE SINGLE DISK VISCOUS PUMPS
PAVESI, GIORGIO;ARDIZZON, GUIDO
2011
Abstract
The development and testing of a rotating single-disk viscous pump are described. This pump consists of a 5.0 mm diameter spinning disk with a 1 mm diameter inflow, and a pump chamber, which are separated by a small gap that forms the fluid passage. The walls of the pump chamber form an annulus with an outer radius of 5.0 mm. Different pump configurations were tested, varying chamber heights from 50 to 200 micron. For each configuration, the pump’s performance was analysed at several rotation speeds in a range from 10,000 rpm up to 24,000 rpm. Mass flow rate up to 23 ml/min and pressure rise up to 4.5 kPa were obtained experimentally with pure water. Numerical time-dependent CFD simulations were also carried out on the same configurations to study the flow field structure inside the pump. The numerical results were validated by comparison with the experimental data.Pubblicazioni consigliate
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