Skip to main content
SpringerLink
Log in

Experimental and numerical studies on the wall-roughness effect to particle dynamics in various gas-particle flows

  • Research Article
  • Published:
Experimental and Computational Multiphase Flow Aims and scope Submit manuscript

Abstract

The effect of wall roughness on particle dynamics in gas-particle flows has been studied both experimentally and numerically, but mainly for channel, pipe, and boundary-layer flows. The present authors did numerical studies and detailed phase-Doppler particle anemometry (PDPA) measurements on the effect of wall roughness for particle dynamics in separating (sudden-expansion and swirling) gas-particle flows, as well as channel flows. The simulated gas-particle flow showed that the prediction results accounting for the wall roughness agree well with the measurement results. The PDPA measurements of backward-facing step gas-particle flows showed that as the wall roughness increases, the longitudinal and the transverse time-averaged particle velocities decrease, but the longitudinal and transverse particle fluctuation velocities i ncrease.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Abbreviations

bc:

boundary condition

D :

diffusion term

e :

restitution coefficient

f :

friction coefficient; probability density distribution function

G :

phase interaction term

n :

number density

P :

pressure term

r, x, y, z :

coordinates

R :

relation; radius of swirl chamber

t :

time

u,v :

velocity

α :

virtual wall inclination; volume fraction

α′ :

maximum value of virtual wall inclination

ε :

dissipation term

ρ :

density

∏:

pressure-strain term

1, 2:

before and after collision

g:

gas phase

i:

inner field

i, j, k :

components in x, y, z directions

in:

inlet value

m:

material density

p:

particle phase

s:

solid phase

w:

wall value

—:

Reynolds time-averaged value

=:

mass-weighed averaged stress

~:

mass-weighed averaged velocity

’:

fluctuation value in Reynolds time-averagin

“:

fluctuation value in mass-weighed averaging

References

  • Eskin, D. 2005. Modeling dilute gas-particle flows in horizontal channels with different wall roughness. Chemical Engineering Science, 60: 655–663.

    Article  ADS  CAS  Google Scholar 

  • Gidaspow, D. 1994. Multiphase Flow and Fluidization: Continuum and Kinetic Theory Description. New York: Academic Press, 65–78.

    Google Scholar 

  • Haghshenas, A., Bohlen, A., Tyralla, D., Groll, R. 2022. The relevance of wall roughness modeling for simulation of powder flows in laser metal deposition nozzles. The International Journal of Advanced Manufacturing Technology, 123: 1441–1458.

    Article  Google Scholar 

  • Kussin, J., Sommerfeld, M. 2002. Experimental studies on particle behaviour and turbulence modification in horizontal channel flow with different wall roughness. Experiments in Fluids, 33: 143–159.

    Article  ADS  CAS  Google Scholar 

  • Lain, S. 2014. Pneumatic conveying of solids along a channel with different wall roughness. Chemical Engineering Communications, 201: 437–455.

    Article  CAS  Google Scholar 

  • Luo, K., Dai, Q., Liu, X., Fan, J. 2019. Effects of wall roughness on particle dynamics in a spatially developing turbulent boundary layer. International Journal of Multiphase Flow, 111: 140–157.

    Article  MathSciNet  CAS  Google Scholar 

  • Sommerfeld, M., Huber, N. 1999. Experimental analysis and modelling of particle-wall collisions. International Journal of Multiphase Flow, 25: 1457–1489.

    Article  CAS  Google Scholar 

  • Sommerfeld, M., Kussin, J. 2004. Wall roughness effects on pneumatic conveying of spherical particles in a narrow horizontal channel. Powder Technology, 142: 180–192.

    Article  CAS  Google Scholar 

  • Sommerfeld, M., Qiu, H. H. 1991. Detailed measurements in a swirling particulate two-phase flow by a phase-Doppler anemometer. International Journal of Heat and Fluid Flow, 12: 20–28.

    Article  CAS  Google Scholar 

  • Tian, Z. F., Inthavong, K., Tu, J. Y., Yeoh, G. H. 2008. Numerical investigation into the effects of wall roughness on a gas-particle flow in a 90° bend. International Journal of Heat and Mass Transfer, 51: 1238–1250.

    Article  CAS  Google Scholar 

  • Yang, W., Li, X., Li, G., Pan, X. 2013. Effects of higher wall roughness on dense particle-laden dispersion behaviors. Advanced Powder Technology, 24: 525–531.

    Article  Google Scholar 

  • Yu, Y. 2004. Studies on gas turbulence modification in gas-particle flows and a dense two-phase turbulence model. Ph.D. Dissertation. Beijing: Tsinghua University.

    Google Scholar 

  • Zaman, A. U., Bergstrom, D. J. 2014. Implementation of two-fluid model for dilute gas-solid flow in pipes with rough walls. Journal of Fluids Engineering, 136: 031301.

    Article  Google Scholar 

  • Zhang, X. 2003. Theoretical and experimental studies on a two-fluid particle-wall collision model. Ph.D. Dissertation. Beijing: Tsinghua University.

    Google Scholar 

  • Zhao, Q., Cui, B., Hou, D., Wei, D., Song, T., Feng, Y. 2021. Effects of wall roughness on the separation performance of hydrocyclones under different inlet conditions. Industrial & Engineering Chemistry Research, 60: 11251–11266.

    Article  CAS  Google Scholar 

  • Zhou, L. X., Chen, T. 2001. Simulation of swirling gas-particle flows using USM and k-ε-kp two-phase turbulence models. Powder Technology, 114: 1–11.

    Article  CAS  Google Scholar 

Download references

Acknowledgements

This study was sponsored by the Special Funds for the Major State Basic Research, China (Grant No. G-1999-0222-08) and the National Natural Science Foundation of China (Grant Nos. 51390493 and 51266008).

Author information

Authors and Affiliations

  1. Department of Engineering Mechanics, Tsinghua University, Beijing, China

    Lixing Zhou, Xia Zhang & Yong Yu

  2. Department of Power Engineering, Beijing Institute of Technology, Beijing, China

    Yong Yu

Authors
  1. Lixing Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Xia Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yong Yu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Lixing Zhou.

Ethics declarations

The authors have no competing interests to declare that are relevant to the content of this article.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhou, L., Zhang, X. & Yu, Y. Experimental and numerical studies on the wall-roughness effect to particle dynamics in various gas-particle flows. Exp. Comput. Multiph. Flow (2024). https://doi.org/10.1007/s42757-023-0168-8

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s42757-023-0168-8

Keywords

Search

Navigation