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A simple harmonic motion is proposed to make the membrane move in a simple harmonic way so as to enhance the membrane filtration, and minimize the membrane fouling and concentration polarization. The velocity distribution and pressure distribution are deduced from the Navier-Stokes equation on the basis of a laminar flow when the membrane rotates at the speed of A sin(αt). And then the shear stress, shear force, moment of force
A simple harmonic motion is proposed to make the membrane move in a simple harmonic way so as to enhance the membrane filtration, and minimize the membrane fouling and concentration polarization. The velocity distribution and pressure distribution are deduced from the Navier-Stokes equation on the basis of a laminar flow when the membrane rotates at the speed of A sin (αt). And then the shear stress, shear force, moment of force