Revision 1

Superseded · first revision · record

Title: Scaling of the splash-threshold gas pressure with viscosity and gas
Plain: The air pressure below which splashing stops depends on the liquid and the gas. A single rule that covers thin and thick liquids and different gases has not been found.
Precise: Measure and predict $P_T$ as a function of liquid viscosity (about 0.3 to 10 cP), V, R and gas molecular weight, establishing whether the gas enters only through its density, through its mean free path (rarefaction in the thin gas film), or both, and whether one scaling law covers low- and high-viscosity liquids.
Settled by: Threshold maps over viscosity, speed and gas species collapsed by a single derived scaling variable.
Kind: well-posed
Answer type: value
References: (empty)
Literature status: open
Status note: Threshold scalings measured for low-viscosity liquids (arXiv:1403.3145) are not reproduced by one theory across viscosities.
Posed since: (empty)