Abstract The gas content is one of the important factors in cavitation, which may increase pressure inside cavity through diffusive mass transfer dissolved into cavity. In present study, we try to directly measure sheet at throat a converging-diverging nozzle. Then influences flow velocity and (amount oxygen) on partial are investigated. It found that, even low level, slightly but apparently hi...

Abstract The flow in the heated rotating cavity of an aero-engine compressor is driven by buoyancy forces, which result pairs cyclonic and anticyclonic vortices. resultant field three-dimensional, unsteady, unstable, makes it challenging to model heat transfer. In this paper, properties vortex structures are determined from novel unsteady pressure measurements collected on disk surface over a r...

The middle ear pressure variation is one of the most important factors that causes discomfort on flight passengers and crew. The purpose of this work is to develop a mathematical model of the middle ear cavity pressure variation during typical flight’s conditions. The middle ear cavity was modeled as a gas chamber that transfer gas to other physiological systems trough three different ways. One...

The design of highly wavelength tunable semiconductor laser structures is presented. The system is based on a one dimensional photonic crystal cavity consisting of two patterned, doubly-clamped nanobeams, otherwise known as a "zipper" cavity. Zipper cavities are highly dispersive with respect to the gap between nanobeams in which extremely strong radiation pressure forces exist. Schemes for con...

In producing realistic, animatable models of the human body, we see much to be gained from developing a functional anatomy that links the anatomical and physiological behavior of the body through fundamental causal principles. This paper describes our current Finite Element Method implementation of a simplified lung and chest cavity during normal quiet breathing and then disturbed by a simple p...

Simultaneous Planar Laser Scattering (PLS) imaging and fluctuating pressure measurements have been made for a rectangular cavity in a Mach 5 turbulent boundary layer. Preliminary results are presented in the form of instantaneous side view images, and power spectra for cavity length-to-depth ratios of 3, 4, 6, 7, and 8. High-frequency response pressure transducers were installed in the rear and...

We report results of frequency stability measurements of an extended cavity diode laser (ECDL) whose frequency is stabilized by a non-evacuated scanning transfer cavity. The transfer cavity is locked to a commercial frequency stabilized helium-neon laser. Frequency stability is measured by use of an optical frequency comb. The environmental perturbations (variations of temperature, air pressure...

A suite of surface and basal measurements during and after borehole drilling is used to perform in situ investigation of the local basal drainage system and pressure forcing in western Greenland. Drill and borehole water temperature were monitored during borehole drilling, which was performed with dyed hot water. After drilling, borehole water pressure and basal dye concentration were measured ...