Figure 12
From: Centrifugal granulation behavior in metallic powder fabrication by plasma rotating electrode process

Top views of the simulation cases with the end surface morphology of (a, b) flat plane, (c, d) shallow depression, and (e, f) deep depression. Schematics show that as the depression depth increased, the angle \(\theta\) increased; thus, the resultant force of the centrifugal force \(F_{{\text{c}}}\) and the viscous resistance \(F_{\mu }\) along the radial direction (\(F_{c} - F_{\mu } \cdot \cos \theta\)) was strengthened.