Lewis number of chemical species

sahmed · April 18, 2016, 15:02

Hi
I am simulating reacting flow in a flow reactor with complete chemistry. For that, I need to provide a complete the Lewis numbers of all the species that I have in chemical mechanism.
Could anyone tell me a reliable source which I can use for Lewis number of difference chemical species, or any other suggestion on that.

kalle · April 19, 2016, 01:53

Have a look here:

http://www3.nd.edu/~powers/ame.60636/transport.pdf

sahmed · April 19, 2016, 10:33

Thanks Kalle for your reply. I looked into this doc before. I need a database with either Lewis number of common species or the mass and thermal diffusion coefficients from which I can calculate the Le. This doc does not have those.

Please let me know if you know any other sources.

kalle · April 19, 2016, 15:34

Sure, there is all you need there... in chapter 6 you have species data that you plug in to the equations.

Mixtue averaged thermal conductivity - eq 50

Binary diffusion rate for specie: eq 3.. maybe your system contains a lot of N2, then you can let your specie diffuse into N2?

April 18, 2016, 15:02	Lewis number of chemical species	#1
sahmed Member Sheikh Ahmed Join Date: Dec 2015 Location: South Carolina, USA Posts: 88 Rep Power: 10	Hi I am simulating reacting flow in a flow reactor with complete chemistry. For that, I need to provide a complete the Lewis numbers of all the species that I have in chemical mechanism. Could anyone tell me a reliable source which I can use for Lewis number of difference chemical species, or any other suggestion on that.

April 19, 2016, 01:53		#2
kalle Senior Member Karl-Johan Nogenmyr Join Date: Mar 2009 Location: Linköping Posts: 279 Rep Power: 21	Have a look here: http://www3.nd.edu/~powers/ame.60636/transport.pdf atulkjoy likes this.

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April 19, 2016, 10:33		#3
sahmed Member Sheikh Ahmed Join Date: Dec 2015 Location: South Carolina, USA Posts: 88 Rep Power: 10	Thanks Kalle for your reply. I looked into this doc before. I need a database with either Lewis number of common species or the mass and thermal diffusion coefficients from which I can calculate the Le. This doc does not have those. Please let me know if you know any other sources.

April 19, 2016, 15:34		#4
kalle Senior Member Karl-Johan Nogenmyr Join Date: Mar 2009 Location: Linköping Posts: 279 Rep Power: 21	Sure, there is all you need there... in chapter 6 you have species data that you plug in to the equations. Mixtue averaged thermal conductivity - eq 50 Binary diffusion rate for specie: eq 3.. maybe your system contains a lot of N2, then you can let your specie diffuse into N2?