Recent content by TboneWalker

The "effective diffusion coefficient" that I measure is the value the diffusion coefficient has to have in order to achieve the observed mass flux, assuming that diffusion alone is the driving mechanism. For instance, I know that the diffusion of CO2 in water in reality is around 2E-9. In...

Thanks, that clears it up :wink: Any more thoughts anyone?

I'm having a little trouble understanding the Sherwood number, (Sh, mass transfer Nusselt number), which gives the ratio of convective to diffusive mass transfer. My question is: given a system that has a molecular diffusion coefficient of D, the effective diffusion coefficient is measured to De...

I know that this convection can not physically happen in one dimension, I just though it would be possible to approximate a formulation through a 1D equation, that in some way would give us an area-averaged density as a function of height and time... Thanks for the book tip btw :)

I am attempting to make a simple phenomenological model of convection in a fluid with a negative concentration gradient. The heavier fluid overlaying light fluid will under many conditions cause a so called Rayleigh-Taylor unstability, and the denser fluid will move downwards as a result. I've...