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

被引：8
作者：
Succi, S
Gabrielli, A
Smith, G
Kaxiras, E
机构：
[1] CNR, Ist Applicaz Calcolo, I-00161 Rome, Italy
[2] Univ Roma La Sapienza, Dipartimento Fis, INFM, I-00185 Rome, Italy
[3] Harvard Univ, Dept Phys, Lyman Lab, Cambridge, MA 02138 USA
来源：
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2001年 / 16卷 / 01期
关键词：
D O I：
10.1051/epjap:2001195
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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.
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收藏
页码：71 / 84
页数：14
相关论文
共 15 条
  • [1] Spanning the length scales in dynamic simulation
    Abraham, FF
    Broughton, JQ
    Bernstein, N
    Kaxiras, E
    [J]. COMPUTERS IN PHYSICS, 1998, 12 (06): : 538 - 546
  • [2] ANDRADE JS, IN PRESS EUROPHYS LE
  • [3] Dissolution and deposition in fractures
    Bekri, S
    Thovert, JF
    Adler, PM
    [J]. ENGINEERING GEOLOGY, 1997, 48 (3-4) : 283 - 308
  • [4] THE LATTICE BOLTZMANN-EQUATION - THEORY AND APPLICATIONS
    BENZI, R
    SUCCI, S
    VERGASSOLA, M
    [J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1992, 222 (03): : 145 - 197
  • [5] BERGMANN A, 1997, P 1997 INT SAE C DET
  • [6] THE PERMEABILITY OF A RANDOM MEDIUM - COMPARISON OF SIMULATION WITH THEORY
    CANCELLIERE, A
    CHANG, C
    FOTI, E
    ROTHMAN, DH
    SUCCI, S
    [J]. PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1990, 2 (12): : 2085 - 2088
  • [7] Catalysis and surface science
    Ertl, G
    Freund, HJ
    [J]. PHYSICS TODAY, 1999, 52 (01) : 32 - 38
  • [8] A priori derivation of the lattice Boltzmann equation
    He, XY
    Luo, LS
    [J]. PHYSICAL REVIEW E, 1997, 55 (06) : R6333 - R6336
  • [9] LATTICE GAS-DYNAMICS WITH ENHANCED COLLISIONS
    HIGUERA, FJ
    SUCCI, S
    BENZI, R
    [J]. EUROPHYSICS LETTERS, 1989, 9 (04): : 345 - 349
  • [10] USE OF THE BOLTZMANN-EQUATION TO SIMULATE LATTICE-GAS AUTOMATA
    MCNAMARA, GR
    ZANETTI, G
    [J]. PHYSICAL REVIEW LETTERS, 1988, 61 (20) : 2332 - 2335
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