Optical diagnostics for fluid temperature measurements continue to further our
understanding of flows involving heat transfer and/or chemical reactions, which are intrinsic …

Sprays are among the most intellectually challenging and practically important topics in fluid
mechanics. This paper reviews needs, milestones, challenges, and a broad array of …

Coherent anti-Stokes Raman scattering (CARS) spectroscopy is widely used for measuring
temperature and species concentration in reacting flows. This paper reviews the advances …

The safe, clean, and reliable operation of combustion devices depends to a large degree on
the exact control of the fuel/air mixing process prior to ignition. Therefore, quantitative …

Twenty years ago, homogeneous-charge spark-ignition gasoline engines (using
carburetion, throttle-body-, or port-fuel-injection) were the dominant automotive engines …

Laser-based methods have transformed combustion diagnostics in the past few decades.
The high intensity, coherence, high spectral resolution and frequency tunability available …

Gasoline direct injection (GDI) sprays are complex multiphase flows. When compared to
multi-hole diesel sprays, the plumes are closely spaced, and the sprays are more likely to …

We explore a novel phase matching scheme for gas-phase rotational coherent anti-Stokes
Raman spectroscopy (CARS). The scheme significantly simplifies the employment of the …

Gaining information of species, temperature, and velocity distributions in turbulent
combustion and high-speed reactive flows is challenging, particularly for conducting …

The first application of Laser Induced Thermal Gratings Spectroscopy (LITGS) for precision
thermometry in a firing GDI optical engine is reported. Crank-angle resolved temperature …