Head of Hermes

6x6 in. Mechanical pencil on paper.
After I drew this, I felt like I needed to go to sleep.

hee hee

It's a joke about sausages. In my article in Desalination.

MFA

After so much abstract art, I am happy to find that I can still do representational drawing.

Also, I am working on something....

Sweet Bubbles

I am so going to have the prettiest title slide at the heat transfer conference

Oh and

Landscape Sketching

I went to a lake.

How I Feel About Convective Heat Transfer

People don't want to learn heat transfer because of shit like this:

(Deckwer, 1980)

I'll try to explain this in words:

The (ratio of convection to advection heat transport) is proportional to the negative-fourth root of [(ratio of inertial to viscous forces) times the (ratio of inertial to gravitational forces) times the square of the (ratio of momentum diffusivity to thermal diffusivity)]

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What does that even mean?

It turns out that the above correlation (for heat transfer in a bubble column) can be rewritten as:

(Tow, 2014)

In words:

The (ratio of convection heat transfer to conduction through eddy length) is proportional to the square root of the (ratio of momentum diffusivity to thermal diffusivity).

It works out this way because forced convection is really just conduction through some thermal layer. The keys are just finding out how the thermal layer relates to the momentum layer (in this case, through Pr^[1/2] because of transient conduction interactions with eddies) and finding the size of the momentum layer (in this case, the micro-eddy scale, eta).

Classical Optics

my first journal article :D

And the page from my lab notebook when it all became possible: