Key result
Short circular hydrodynamic journal bearing designs with a short Sommerfeld Number >0.02 can provide sufficient fluid film thicknesses and low shear rates for rotary blood pumps.
Population
Short circular hydrodynamic journal bearings for rotary blood pumps
Design
Preclinical
Authors
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May guide bearing optimization in rotary blood pumps; leaves open clinical translation pending human studies.
Short circular hydrodynamic journal bearings for rotary blood pumps can be accurately modeled using the full Sommerfeld boundary condition, with designs having SS >0.02 showing optimal fluid film thickness and shear rates.
Boehning et al. (2013) studied Heart failure. Short circular hydrodynamic journal bearings (HJBs) was evaluated on Bearing performance (load capacity, power loss, shear rates, stability). Short circular hydrodynamic journal bearing designs with a short Sommerfeld Number >0.02 can provide sufficient fluid film thicknesses and low shear rates for rotary blood pumps.
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