Energy and Climate

Engine Combustion

New Polarized-Depolarized Measurement Capability Extends Use of Raman/Rayleigh Methods to More Flame Types

Allowing single-shot measurements of all major species in nonsooting flames of simple fuels, such as H2 and CH4, spontaneous Raman scattering has been a key Combustion Research Facility (CRF) laser diagnostic technique for fundamental turbulent-combustion studies. However, laser-induced fluorescence from soot precursors tends to interfere significantly with Raman scattering signals—limiting this method’s utility. Such fluorescence […]

New Conceptual Insights into Diesel Engine Fuel-Injection Processes

By combining advanced theory and high-fidelity large eddy simulation, Combustion Research Facility (CRF) researchers Rainer Dahms and Joe Oefelein (both in 8351) have provided new conceptual insights that promise to improve the understanding and prediction of fuel-injection processes in high-pressure diesel engine conditions. Their results, which experiments performed by CRF researchers Lyle Pickett and Julien […]

Lyle Pickett Named a Society of Automotive Engineers Fellow

Lyle Pickett (in Sandia’s Engine Combustion Dept.) was just elected to a Society of Automotive Engineers (SAE) Fellow-grade membership. He was selected based on his pioneering research on direct-injection engine fuel sprays and the international leadership he has brought to the field. His contributions are providing both a new understanding of the fundamentals of fuel […]

Combustion

On January 14, 2011, in

The Combustion Research Facility (CRF) is an internationally recognized center of excellence for combustion science and technology whose operations are supported by the DOE Office of Science, Office of Basic Energy Sciences (BES).  The CRF is home to about 100 scientists, engineers, and technologists who conduct basic and applied research aimed at improving our nation’s […]