In addition to the common flow instabilities typical for single layers, such as unstable inlet angle, stick-slip, melt fracture and wall slip, in multi-layer flow two additional phenomena occur: encapsulation, and interfacial instability
In addition to the common flow instabilities typical for single layers, such as unstableinlet angle, stick-slip, melt fracture and wall slip, in multi-layer flow two additionalphenomena occur: encapsulation, and interfacial instability