Session
2025 Session 4
Location
Brigham Young University Engineering Building, Provo, UT
Start Date
5-5-2025 11:10 AM
Description
Multiphase turbulence is a ubiquitous mechanism that drives the motion of fluid and particulate. In order to understand the behavior of this complex mechanism, it is critical to build facilities where driving parameters can be studies. Various flow actuators are used to drive turbulence, but we use synthetic jets for their geometric customizability and wide range operating parameters. Many studies based on synthetic jets focus on characterizing velocity while omitting the connection to turbulence. Additionally, most work in the existing literature is tied to the non-dimensional numbers but can obscure the limitations regarding both size and allowable driving conditions of an actuator. Our work seeks to demonstrate how synthetic jet orifice geometry influences the mass, momentum, and energy fluxes that feed into turbulence. These fluxes that are created by fluid entering and leaving the orifice are driven fundamentally by the pressure differences that occur for a cyclically driven actuator. Pressure that is closely tied to the geometric area is then a great monitor that can couple fluid flow behavior to the source.
A Pressure-Based Estimate of Multi-Orifice Synthetic Jet Performance
Brigham Young University Engineering Building, Provo, UT
Multiphase turbulence is a ubiquitous mechanism that drives the motion of fluid and particulate. In order to understand the behavior of this complex mechanism, it is critical to build facilities where driving parameters can be studies. Various flow actuators are used to drive turbulence, but we use synthetic jets for their geometric customizability and wide range operating parameters. Many studies based on synthetic jets focus on characterizing velocity while omitting the connection to turbulence. Additionally, most work in the existing literature is tied to the non-dimensional numbers but can obscure the limitations regarding both size and allowable driving conditions of an actuator. Our work seeks to demonstrate how synthetic jet orifice geometry influences the mass, momentum, and energy fluxes that feed into turbulence. These fluxes that are created by fluid entering and leaving the orifice are driven fundamentally by the pressure differences that occur for a cyclically driven actuator. Pressure that is closely tied to the geometric area is then a great monitor that can couple fluid flow behavior to the source.