Sweet Bubbles

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

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).

"Drawn at work"

OMG finally finished my radiative heat transfer final paper :P I thought this diagram turned out nice.

Figure 6. Left: normally-incident radiation experiences total internal reflection at the edges of the droplet and reflects back. Right: radiation is incident at a moderate angle such that the most steeply-angled part of the droplet is in shadow, reducing the overall reflectance.

HEAT FLUX AND

I have a research presentation and an art show tomorrow. I think the title slide for my art show presentation is pretty great.

 I think my research presentation would be cooler if I re-purposed the title slide artwork:

However, I'm not going to do that. My 11 male labmates think I'm weird as it is. But it's okay, because bubble column dehumidifiers are the shit.