Cylinders at Low Reynolds Numbers Point Particles

DIFFUSION TO CYLINDERS AT LOW REYNOLDS NUMBERS POINT PARTICLES 

The concentration boundary condition n = is set at y = oo, even though the boundary layer form of the equation of convective diffusion (3,10) is valid only near (he surface of the cylinder. This can be justified by noting that the concentration approaches Oao very near the surface for high Pe. 

v and r are taken as independent variables instead of x and y, (3.26) can be transformed into the following equation  

By inspection of (3.17), we assume as a trial solution that n is a function only of the variable This assumption must be checked by substitution of the expressions 

The rate of diffusional deposition per unit length of cylinder is 

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