Consider the coating operation shown below. A solid substrate is pulled steadily with a velocity V through a die of length L and width W in the horizontal direction (positive x-direction). The space between the substrate surface and the die (h) contains a coating liquid which is an incompressible Newtonian fluid. The top surface of the die at y = h is stationary. The pressure on the liquid at the die entrance at x = 0 is Po, while the pressure on the liquid at the die exit at x = L is PL. Assume the liquid is in steady fully developed laminar flow in the die region, and L>>h and W>>h. a) List assumptions and write the simplified forms of the continuity and Navier-Stokes equations. b) Write the boundary conditions to be used for solving the Navier-Stokes equation. c) Solve for the coating liquid velocity profile in the die region. d) Obtain an equation for the force required to pull the substrate through the die region.

Q: What is pressure swing adsorption (PSA)?

A: In this question pressure swing adsorption (PSA) have to discuss.

Q: What is the difference between the Murphree tray and point efficiencies?

A: Murphree tray efficiency and the point efficiency is to be differentiate.

Q: Should axial despersion be avoided?

A: It is to be stated whether axial dispersion should be avoided or not.

Q: Can a batch rectifier and a batch stripper be combined?

A: It is to be mentioned whether a batch stripper and batch rectifier can be combined or not.

Q: In barrel plating, why is the barrel containing the small parts rotated?

A: The reason for rotation of the small parts of the barrel in barrel plating is to be mentioned.

Q: What are examples of mechanical operation

A: Mechanical Operations is the operation that is applied on the solids, to get the desired size,…

Q: If a batch rectifier and a batch stripper be combined what advantage is gained?

A: The advantages of combining the batch rectifier and batch stripper are to be mentioned.