Microscale plasma actuators operate at lower voltages than their macroscale counterparts and allow easy integration into microsystems. Field-emission driven microplasma actuators can be applied for gas flow enhancement in microchannels for pumping and microcombustion applications. The present work studies the feasibility of microplasma actuation as a pump for gaseous microchannel flow. We use 2D Particle-In-Cell / Monte Carlo Collisions (PIC/MCC) method to calculate the volumetric force generated by field-emission driven micro dielectric barrier discharge (DBD). The simulations show that the induced volumetric force and heat source scale inversely with the dielectric thickness. A volumetric force of 1000 μN/mm3 with Joule heat source of 6 W/mm3 for an input power of 16 mW/m was obtained for a dielectric thickness of 3 μm per DBD. This force couples with the momentum flow in the microchannel in the solution of the Navier-Stokes equations. The flow enhancement increased with the decreasing Reynolds number (Re). In a long microchannel (40 mm) at Re = 73, the actuation lead to 22% increase in mass flow rate. However the vorticity induced by heating reduced this gain by 0.03%. In a short microchannel (1.5 mm) without pressure gradient, the actuator induced flow rate was found to be higher than that of a conventional DBD pump. The inclusion of heat source further enhanced the flow by 0.05% in the short channels.
Skip Nav Destination
ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems
July 6–9, 2015
San Francisco, California, USA
Conference Sponsors:
- Heat Transfer Division
- Fluids Engineering Division
ISBN:
978-0-7918-5687-1
PROCEEDINGS PAPER
Microchannel Flow Enhancement by Microplasma Actuation
Gayathri Shivkumar,
Gayathri Shivkumar
Purdue University, West Lafayette, IN
Search for other works by this author on:
Siva Sashank Tholeti,
Siva Sashank Tholeti
Purdue University, West Lafayette, IN
Search for other works by this author on:
Alina A. Alexeenko
Alina A. Alexeenko
Purdue University, West Lafayette, IN
Search for other works by this author on:
Gayathri Shivkumar
Purdue University, West Lafayette, IN
Siva Sashank Tholeti
Purdue University, West Lafayette, IN
Alina A. Alexeenko
Purdue University, West Lafayette, IN
Paper No:
ICNMM2015-48428, V001T04A006; 11 pages
Published Online:
November 18, 2015
Citation
Shivkumar, G, Tholeti, SS, & Alexeenko, AA. "Microchannel Flow Enhancement by Microplasma Actuation." Proceedings of the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. San Francisco, California, USA. July 6–9, 2015. V001T04A006. ASME. https://doi.org/10.1115/ICNMM2015-48428
Download citation file:
21
Views
Related Proceedings Papers
Related Articles
Transport of Heavy Particles in a Three-Dimensional Mixing Layer
J. Fluids Eng (September,1998)
Navier-Stokes Simulations of a Novel Viscous Pump
J. Fluids Eng (June,1997)
Modeling of Heat Transfer in Microchannel Gas Flow
J. Heat Transfer (February,2011)
Related Chapters
Multiphase Flow Simulations of Sediment Particles in Mixed-flow Pumps
Mixed-flow Pumps: Modeling, Simulation, and Measurements
Concluding remarks
Mechanical Blood Trauma in Circulatory-Assist Devices
Introduction
Mechanical Blood Trauma in Circulatory-Assist Devices