Further exploration of acoustic droplet vaporization

Objectives

(1) Simulate single droplet vaporization with existing models but applied to BRG droplet such as condensed BR38 or microfluidic PFC nanodrops

(2) Define a robust method for pressure threshold determination

(3) Apply design of experiments for multivariate characterization of the phenomenon

Strategies

Statistical threshold determination methods

Multiple designs : Doehlert for exploration then central composite for quality

Lacour's model implementation

Factors

Hyper-parameters of fit

Acoustical

Parameters

Models

Segmented linear regression vs Sigmoïdal fit

Empirical model : quadratic with interactions

Analytical/Numerical : Time evolution

Excitation frequency

Number of cycles per pulse

Response

Pressure threshold fit quality

Pressure threshold

Bubble and droplet radii

Formulation

Size

Acoustical

Excitation frequency

Excitation shape : continuous vs pulse

C5F12

C4F10

Initial bubble radius

Initial droplet radius