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Search Publications by: Cary Presser (Assoc)

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Displaying 51 - 75 of 92

Metrology for Non-Contact Rainbow Thermometry

March 1, 2001
Author(s)
Cary Presser
NIST recently acquired a commercially available, state-of-the-art droplet diagnostic system that determines the size, velocity, and temperature of in-flight individual droplets. This non-contact diagnostic will be used to determine droplet characteristics

Issues Related to Spray Combustion Modeling Validation

January 1, 2001
Author(s)
J F. Widmann, Cary Presser
Validation of CFD predictions for spray combustion application has been a challenging task due to difficulties in both modeling and experimental measurements. However, validation is considered to be an essential exercise for the success of CFD tools in the

Aerodynamic Study of a Vane-Cascade Swirl Generator

November 1, 2000
Author(s)
J F. Widmann, S R. Charagundla, Cary Presser
The air flow through a vane-cascade swirl generator is examined both experimentally and numerically to characterize the inlet combustion air flow entering a reference spray combustion facility at NIST. A three-dimensional model is used to simulate the

Simulation of Methanol Combustion in the NIST Reference Spray Combustor

November 1, 2000
Author(s)
D S. Crocker, M G. Giridharan, J F. Widmann, Cary Presser
This paper describes the simulation of methanol spray flame in the NIST reference spray combustion facility, which was predicited using a state-of-the-art, unstructured-mesh CFD code. The code solves the gas-phase equations in an Eulerian frame using the

Combustion Research Studies at the National Institute of Standards and Technology

January 1, 2000
Author(s)
Takashi Kashiwagi, William L. Grosshandler, Anthony P. Hamins, William M. Pitts, Cary Presser, Wing Tsang
The National Institute of Standards and Technology (NIST) is a federal agency within the Technology Administration of the Department of Commerce. NIST's primary mission is to develop and apply technology, measurements, and standards to promote economic

Suppression of a Non-Premixed Flame Behind a Step

January 1, 2000
Author(s)
William L. Grosshandler, R Charagundla, Anthony P. Hamins, Kevin B. McGrattan, Cary Presser
Because of its many positive attributes, halon 1301 or trifluorobromomethane (CF 3Br), has been used as a fire extinguishing agent in many applications, including aircraft, ships, and specialized structures. Due to its high ozone depletion potential

Benchmark Database for Input and Validation of Multiphase Combustion Models.

October 11, 1999
Author(s)
J F. Widmann, S R. Charagundla, Cary Presser
Control of process efficiency and the formation of species byproducts from industrial thermal oxidation systems (e.g., power generation and treatment of liquid chemical wastes), is generally based on a priori knowledge of the input stream physical and

Benchmark Data for Fuel Atomization and Combustion Models

August 1, 1999
Author(s)
J F. Widmann, S R. Charagundla, Cary Presser
Experimental data were collected for the purpose of validating multiphase combustion models and submodels. A spray combustor was fabricated that permits well-defined boundary and input conditions, and measurements were carried out that characterize the

Spray Flame Measurements for CFD Model Validation

July 1, 1999
Author(s)
J F. Widmann, S R. Charagundla, Cary Presser
Experimental data were collected for the purpose of validating multiphase combustion models and submodels. A spray combustor was fabricated that permits well-defined boundary and input conditions, and measurements were carried out that characterize the

Benchmark Database for Input and Validation of Spray Combustion Models

May 1, 1999
Author(s)
J F. Widmann, S R. Charagundla, Cary Presser
Control of process efficiency and the formation of species byproducts from industrial thermal oxidation systems (e.g., power generation and treatment of liquid chemical wastes), is generally based on a priori knowledge of the input stream physical and

Analysis of the Sampling Behavior of a Phase Doppler Interferometer

January 1, 1999
Author(s)
J F. Widmann, S R. Charagundla, Cary Presser, Grace L. Yang, Stefan D. Leigh
A phase Doppler interferometer (PDI) was used to measure the intensity (i.e., the expected number of droplets measured per unit time) of a swirling methanol spray flame. Gaps observed in the data, which have been previously reported (McDonell and Samuelsen