Skip to main content Accessibility help
×
Home

Chemical efficiency of reactive microflows with heterogeneous catalysis: a lattice Boltzmann study

  • S. Succi (a1) (a2), A. Gabrielli (a3), G. Smith (a4) and E. Kaxiras (a4)

Abstract

We investigate the effects of geometrical micro-irregularities on the conversion efficiency of reactive flows in narrow channels of millimetric size. Three-dimensional simulations, based upon a Lattice-Boltzmann-Lax-Wendroff code, indicate that periodic micro-barriers may have an appreciable effect on the effective reaction efficiency of the device. Once extrapolated to macroscopic scales, these effects can result in a sizeable increase of the overall reaction efficiency.

Copyright

Corresponding author

References

Hide All
[1] F. Abraham, J. Broughton, N. Bernstein, E. Kaxiras, Comp. Phys. 12/6, 538 (1998).
[2] E. Oran, J. Boris, Numerical simulation of reactive flows, Elsevier Science, New York, 1987.
[3] Bekri, S., Thovert, J.F., Adler, P.M., Chem. Eng. Sci. 50, 2765 (1995) ; Bekri, S., Thovert, J.F., Adler, P.M., Eng. Geology 48, 283 (1997).
[4] Ertl, G., Freund, H.J., Catalysis and surface science, Phys. Today 52, 32 (1999).
[5] Mc Namara, G., Zanetti, G., Phys. Rev. Lett. 61, 2332 (1988).
[6] Higuera, F., Succi, S., Benzi, R., Europhys. Lett. 9, 345 (1989).
[7] Benzi, R., Succi, S., Vergassola, M., Phys. Rep. 222, 145 (1992).
[8] Qian, Y., d'Humieres, D., Lallemand, P., Europhys. Lett. 17, 149 (1989).
[9] Succi, S., Bella, G., Chen, H., Molvig, K., Teixeira, C., J. Comp. Phys. 152, 493 (1999).
[10] Cancelliere, A., Chang, E., Foti, E., Succi, S., Rothman, D., Phys. Fluids A 2, 2085 (1990).
[11] Stepanek, F., Kubicek, M., Marek, M., Adler, P.M., Chem. Eng. Sci. 54, 1493 (1999).
[12] He, X., Luo, L., Phys. Rev. E 55, 6333 (1997).
[13] J.S. Andrade, M. Filoche, B. Sapoval, Europhys. Lett. to appear, cond-mat/0012258.
[14] S. Succi, G. Smith, E. Kaxiras, J. Stat. Phys., submitted (2001).
[15] A. Bergmann, R. Bruck, C. Kruse, Society of Automotive Engineers (SAE) technical paper SAE 971027, Proceedings of the 1997 International SAE Congress, Detroit, USA, February 1997.

Keywords

Chemical efficiency of reactive microflows with heterogeneous catalysis: a lattice Boltzmann study

  • S. Succi (a1) (a2), A. Gabrielli (a3), G. Smith (a4) and E. Kaxiras (a4)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed