ABSTRACT: The collapse of a gas bubble near a solid wall is studied numerically by
assuming the liquid to be incompressible and the Mach number of the gas flow to be small.
The liquid motion is simulated by a boundary integral method and the gas thermo-fluid
dynamics by finite differences on a boundary-fitted grid. With the physical properties of
a liquid monopropellant, it is found that the liquid heating is essentially localized in
the microjet, but is probably not sufficient to cause spontaneous ignition. The reasons
for this conclusion-that, while being in general agreement with available experimental
evidence, is at variance with deductions from previous spherical collapse calculations-are
elucidated.
Phys. Fluids 9, 127-142, 1997
Andrea Prosperetti's Homepage | Publications