Most recents (3)

Dr. Lutz Böhm

@DrLutzBoehm

I came here for different reasons.
A thing, you probably know me for meanwhile, are my #bubble videos and threads about bubble #fluiddynamics, #multiphase #MassTransfer, and #ChemicalReaction

Here's a collection:

The Resazurin-Resorufin System

1/13

https://twitter.com/DrLutzBoehm/status/1500792009057001472

Automated test rig for the investigation of rising #bubbles

2/13

https://twitter.com/DrLutzBoehm/status/1504793196504694795

Rising paths of single #bubblesconfessionparty

3/13

https://twitter.com/DrLutzBoehm/status/1505849443244990468

Read 13 tweets

Dr. Lutz Böhm

@DrLutzBoehm

I mostly showed you #bubbles rising in aqueous systems. Not so often discussed, also in literature, are bubbles rising in organic phases.
Here's an Argon bubble rising in dichloromethane (DCM).
What is the difference?
#fluiddynamics #chemicalEngineering
A 🧵1/8
#SciComm #WissKomm

Other liquids have different material properties. The density of DCM is larger in comparison to that of water by more than 30%. The viscosity is less than half than that of water, and the surface tension is about 1/3 compared to water.
2/8

All of this leads to another rising behavior, rise velocity, shape of the bubbles, rising path, and so on.
In literature, organic phases are less discussed as using these usually leads to much stronger safety precautions.
3/8

Read 8 tweets