Modeling Coating Processes with FLOW-3D
Start-up of slide coating process, applying
coating that is 82 micron thick.
Optimizing coating processes can be difficult due to the small scale of fluid motion and the influence of effects such as wall adhesion and surface tension. FLOW-3D provides a convenient way to analyze these processes without having to resort to costly laboratory experiments. FLOW-3D's models simulate surface tension gradients due to temperature variations, heat transfer, vaporization, condensation, solute transport and density-driven flows.
What are the highest and lowest Reynolds number flows that can be accurately computed by a given numerical method? This often asked question has a variety of answers and, as with most technical issues, the variety of answers arises from the assumptions involved in giving the answer.
For present purposes, the Reynolds number R is defined as R=LU/n, where L and U are characteristic length and velocity scales for a flow and n is the kinematic viscosity of the fluid. It will be recalled that the non-dimensional Reynolds number is a measure of the importance of inertia to viscosity effects. At high Reynolds numbers a flow may become turbulent, exhibiting qualitatively different behavior. Read more in CFD-101 >