This project develops the necessary tools and methods to measure H2O absorption spectra in harsh environments, and calculate temperature and mole fraction from the measured spectra. Various wavelength-agile sources are ...

To experimentally investigate evaporating sprays under conditions experienced in high speed direct-injection (HSDI) diesel engines, the exciplex (excited state complex) laser-induced fluorescence technique and high-speed ...

In order to maximize the power-to-weight ratio, small, air-cooled utility engines are designed for WOT performance. Low-speed, light-load conditions suffer due to high residual gas retention, poor volumetric efficiency ...

Thermometry in combustion applications by means of laser absorption spectroscopy is a well established diagnostic. The experimental simplicity and wealth of knowledge that can be readily gained from an absorption spectrum ...

The mixing of a fuel spray in an optically accessible direct-injection spark-ignition engine was investigated to yield both comparative conclusions between different engine characteristics and fundamental observations of ...

An ideal rocket engine sensing system might probe several key elements of the rocket engine including: the fuel and oxidizer supply for mass flow rate and impurities, the combustion chamber for pressure and mole fraction ...

This project develops hyperspectral lasers that are built using fiber-optic cavities and broadband semiconductor gain media. These sources are custom designed for high-speed (typically 30 kHz) spectroscopic sensing ...

Supercontinuum light generation was used as a means to generate broadband light for spectroscopic measurements. The generated broadband light was used to measure carbon monoxide (CO) absorption in a sealed laboratory ...

The intent of this project was to examine typical hot mix asphalt (HMA) pavements that are constructed in the state of Wisconsin. The analysis compares the suggested pavement structures based on the 1972 pavement design ...