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Plasma chemistry assumption

Posted 18.03.2015, 11:23 GMT-4 Low-Frequency Electromagnetics, MEMS & Nanotechnology, Plasma Physics, Fluid & Heat, Acoustics & Vibrations, MEMS & Piezoelectric Devices, Chemical Reaction Engineering, Modeling Tools & Definitions, Parameters, Variables, & Functions, Results & Visualization, Studies & Solvers Version 4.2, Version 4.3, Version 4.4, Version 5.0 2 Replies

Syed Zaid Ali
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Hello everybody

I am modelling a plasma actuator used for aerospace application (boundary layer separation control, airfoil leading edge flow separation control).

I am having a trouble in finding any or sufficient literature on assuming chemistry for my plasma. I have to specify the plasma chemistry to the plasma module in order to further my study.

Keeping in view that my actuator is for aeronautical application, can anyone suggest me a literature to read or a plasma chemistry that i can assume? , so that my model is simple or of medium complexity but reliable.

I will be extremely thankful for the help.

Thank you

Best regards
Zaid
2 Replies Last Post 23.03.2015, 05:35 GMT-4
Luke Gritter Certified Consultant
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Posted: 10 years ago 20.03.2015, 13:28 GMT-4
Zaid,

The chemistry for an air plasma is very complicated - even a somewhat simplified chemistry could contain tens of species and hundreds of reactions. Of course, you can simplify the chemistry as much as you want, but you may lose accuracy. If you're only interested in a narrow pressure range, then you can focus on the species and reactions that are important for your application in that pressure range, which could simplify the chemistry considerably.

Electron collision cross-sections for all the relevant neutral species can be downloaded from the LXCAT database online. For heavy species reactions, you can find extensive reaction sets in Sakiyama's article "Plasma chemistry model of surface microdischarge in humid air" (J. Phys. D, 2012) or Robert Vidmar's work on plasma cloaking (available online at the DTIC website).

--
Luke Gritter
AltaSim Technologies
Zaid, The chemistry for an air plasma is very complicated - even a somewhat simplified chemistry could contain tens of species and hundreds of reactions. Of course, you can simplify the chemistry as much as you want, but you may lose accuracy. If you're only interested in a narrow pressure range, then you can focus on the species and reactions that are important for your application in that pressure range, which could simplify the chemistry considerably. Electron collision cross-sections for all the relevant neutral species can be downloaded from the LXCAT database online. For heavy species reactions, you can find extensive reaction sets in Sakiyama's article "Plasma chemistry model of surface microdischarge in humid air" (J. Phys. D, 2012) or Robert Vidmar's work on plasma cloaking (available online at the DTIC website). -- Luke Gritter AltaSim Technologies
Aletha Kozel
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Posted: 10 years ago 23.03.2015, 05:35 GMT-4
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