Impact of Modelling Surface Roughness in an Arterial Stenosis

Arterial stenosis is a problem of immediate significance, as cardiovascular disease the number one leading cause death worldwide. Generally, study stenotic flow assumes smooth, curved and artery. However, real situation unlikely to present an infinitely smooth-surfaced arterial stenosis. Here, impact surface roughness on in was studied via computational fluid dynamics analysis. A patient-specific geometry with smooth reconstructed, partially rough model built by artificially adding random only region model. It found that oscillatory downstream models. slightly lower velocity near wall more flows were observed due presence region. pressure distributions did not vary significantly between The differences shear metrics slight became larger