Determining Ohnesorge Number’s Influence on the Spray Atomization of Sustainable Aviation Fuel Blends Using Mie Scattering He-Ne Laser Diagnostics

Faculty Mentor

Dr. Valentin Soloiu

Location

Russell Union Ballroom

Type of Research

On-going

Session Format

Poster Presentation

College

Allen E. Paulson College of Engineering & Computing

Department

Department of Mechanical Engineering

Abstract

The concern surrounding the impacts of climate change intensifies each year as global temperatures continue to rise and affect the public. One contributor is the emissions that come from turbines which are heavily relied upon worldwide as a primary mode of international transportation.  In response to the rising concerns surrounding aviation emissions, the demand has increased for sustainable aviation fuels (SAFs) that have optimized performance and efficiency. Efficient turbine combustion is achieved by maintaining a proper air-fuel mixture, which depends strongly on the fuel’s viscosity, a key thermophysical property. The spray atomization, droplet size and Sauter Mean Diameter (SMD, droplet size) during fuel injection are heavily dependent on these properties and play heavy role in maintaining stable deflagration within the combustor. To analyze fuel spray characteristics, changes in the atomization behavior, spray droplet distribution and Sauter Mean Diameter, a He-Ne Mie scattering laser diagnostic will be utilized. Introducing fuel blending will result in alterations of the fuel’s thermophysical properties, resulting in variations to the Ohnesorge number. The goal of this research project is to analyze how the atomization behavior of the spray changes across different SAF blends at fixed injection conditions.

Program Description

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Start Date

4-23-2026 10:00 AM

End Date

4-23-2026 12:00 PM

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Apr 23rd, 10:00 AM Apr 23rd, 12:00 PM

Determining Ohnesorge Number’s Influence on the Spray Atomization of Sustainable Aviation Fuel Blends Using Mie Scattering He-Ne Laser Diagnostics

Russell Union Ballroom

The concern surrounding the impacts of climate change intensifies each year as global temperatures continue to rise and affect the public. One contributor is the emissions that come from turbines which are heavily relied upon worldwide as a primary mode of international transportation.  In response to the rising concerns surrounding aviation emissions, the demand has increased for sustainable aviation fuels (SAFs) that have optimized performance and efficiency. Efficient turbine combustion is achieved by maintaining a proper air-fuel mixture, which depends strongly on the fuel’s viscosity, a key thermophysical property. The spray atomization, droplet size and Sauter Mean Diameter (SMD, droplet size) during fuel injection are heavily dependent on these properties and play heavy role in maintaining stable deflagration within the combustor. To analyze fuel spray characteristics, changes in the atomization behavior, spray droplet distribution and Sauter Mean Diameter, a He-Ne Mie scattering laser diagnostic will be utilized. Introducing fuel blending will result in alterations of the fuel’s thermophysical properties, resulting in variations to the Ohnesorge number. The goal of this research project is to analyze how the atomization behavior of the spray changes across different SAF blends at fixed injection conditions.