.png){kind=icon}
.png){kind=icon}
Return
A blade-coating study using a finite-element simulation
.png){kind=icon}
PRE
AI
DOI：10.1063/1.2140226.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
A computationally efficient method to describe blade-coating flows has been developed, using a Galerkin/finite-element method. Blade coating is defined by the use of a metering blade that rejects the majority of the applied continuous liquid layer on a substrate. Since the often used lubrication approximation is not valid for the region in which the flow is not rectilinear (i.e., close to the blade heel where most of the liquid is rejected), the flow field is generated by the solution of the complete Navier-Stokes equations coupled with thin inextensible elastic cylindrical shell theory for the blade deflection. The focus of this study is the elastohydrodynamic behavior of the system that is manifested through the elasticity of the blades and the non-Newtonian behavior of the coating suspensions. The approach takes into account the wear of the blade due to the impact of particles that are contained in the coating slurry. A particle tracking algorithm was developed, and upon summation of the particle impacts the erosion rate of the blades was calculated. The effect of the suspension behavior on the blade wear is explored by employing a four-parameter Carreau-type equation to describe the shear thinning behavior. To validate the model, blade samples from a pilot coater were collected at different time intervals.
Keywords:
EROSION
FLOW
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
4.3
Papers:
2.9W
Citations:
8.0W
Organization
No organization information available