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Laser velocimetry measurements in a horizontal gas-solid pipe flow

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Abstract

This paper presents laser measurements of particle velocities in a horizontal turbulent two-phase pipe flow. A phase Doppler particle analyzer, (PDPA), was used to obtain particle size, velocity, and rms values of velocity fluctuations. The particulate phase consisted of glass spheres 50 μm in diameter with the volume fraction of the suspension in the range φ p=10-4 to φ p=10-3. The results show that the turbulence increases with particle loading.

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Abbreviations

a :

particle diameter

C va :

velocity diameter cross-correlation

d :

pipe diameter

Fr 2 :

Froude number

g :

gravitational constant

∂p(a) :

Probability density of the particle diameter

Reτ :

pipe Reynolds number based on the friction velocity

T :

characteristic time scale of the energy containing eddies

T L :

integral scale of the turbulence sampled along the particle path

u′, U, uτ :

characteristic fluid velocities: fluctuating, mean and friction

v′ :

characteristic velocity of the paricle fluctuations

〈f〉:

expected value of any random variable f

〈f¦g〉:

expected value of f given a value of the random variable g

φ p :

particle volume fraction

τ p :

particle response time

μ :

absolute fluid viscosity

v :

kinematic fluid viscosity

ρ p, ρf :

densities, particle and fluid

σ 2 a :

particle diameter variance

σ 2 va :

velocity variance due to the particle diameter variance

σ 2 vT :

total particle velocity variance

σ 2 vt :

particle velocity variance due to the response to the turbulent field

References

  • Bachalo, W. D.; Houser, M. J. 1984: Development of the phase/ Doppler spray analyzer for liquid drop size and velocity characterizations. 20th Joint Propulsion Conference, AIAA/SAE/ ASME, Cincinnati OH, AIAA Paper 84-1199

  • Boothroyd, R. G. 1967: Turbulene characteristics of the gaseous phase in duct flow of a suspension of fine particles. Trans. Inst. Chem. Eng. 45, 297 - 310

    Google Scholar 

  • Carlson, C. R.; Peskin, R. L. 1975: One dimensional particle velocity probability densities measured in turbulent gas-particle duct flow. Int. J. Multiphase Flow 2, 67 - 78

    Google Scholar 

  • Chao, B. T. 1964: Turbulent transport behavior of small particles in dilute suspension. Oesterr. Ing.-Arch. 8, 7 - 22

    Google Scholar 

  • Durst, F. 1982: Combined measurements of particle velocities, size distributions, and concentrations. Trans. ASME 104, 284 - 297

    Google Scholar 

  • Durst, F.; Zaré, M. 1975: Laser-doppler measurements in two-phase flows. LDA Symposium, University of Denmark

  • Elghobashi, S.; Abou-Arab, T.; Rizk, M.; Mostafa, A. 1984: Prediction of the particle-laden jet with a two-equation turbulence model. Int. J. Multiphase Flow 10, 697 - 710

    Google Scholar 

  • Genchev, Zh. D.; Karpazov, P. S. 1980: Effects of the motion of dust particles on turbulence transport equations. J. Fluid Mech. 101, 833 - 842

    Google Scholar 

  • Lawn, C. J. 1971: The determination of the rate of dissipation in Turbulent pipe flows. J. Fluid Mech. 48, 477 - 505

    Google Scholar 

  • Lee, S. L.; Durst, F. 1982: On the motion of particles in turbulent duct flows. Int. J. Multiphase Flow 8, 125 - 146

    Google Scholar 

  • Lee, S. L.; Srinivasan, J. 1982: An LDA technique for in situ simultaneous velocity and size measurements of large spherical particles in a two-phase suspension flow. Int. J. Multiphase Flow 18, 47 - 57

    Google Scholar 

  • Owen, P. R. 1969: Pneumatic transport. J. Fluid Mech. 39, 407 - 432

    Google Scholar 

  • Papoulis, A. 1984: Probability random variables and stochastic processes. New York: McGraw Hill

    Google Scholar 

  • Pfeffer, R.; Rossetti, S. J. 1971: Experimental determination of pressure drop and flow characteristics of dilute gas-solid suspensions. NASA CR-1894

  • Saffman, P. G. 1962: On the stability of laminar flow of a dusty gas. J. Fluid Mech. 13, 120 - 128

    Google Scholar 

  • Snyder, W. H.; Lumley, J. L. 1971: Some measurements of particle velocity autocorrelation functions in turbulent flow. J. Fluid Mech. 48, 41 - 71

    Google Scholar 

  • Soo, S. L. 1982: State of multiple instrumentation. Dev. Theor. Appl. Mech. 11, 563 - 576

    Google Scholar 

  • Soo, S. L. 1987: Fundamentals of multiphase fluid dynamics: Preliminary edn. Urbana/IL: S. L. Soo and G.

  • Soo, S. L.; Ihrig, H. K.; Kouh, A. F. 1960: Experimental determination of statistical properties of two-phase turbulent motion. J. Basic Eng. 82, 609 - 621

    Google Scholar 

  • Steimke, J. L.; Dukler, A. E. 1983: Laser doppler velocimeter measurements of aerosols in turbulent pipe flows. Int. J. Multiphase Flow 9, 751 - 754

    Google Scholar 

  • Tennekes, H.; Lumley, J. L. 1972: A first course in turbulence. Cambridge/MA: MIT Press

    Google Scholar 

  • Tsuji, Y.; Morikawa, Y. 1982: LDV measurements of an air-solid two-phase flow in a horizontal pipe. J. Fluid Mech. 20, 385 - 409

    Google Scholar 

  • Tsuji, Y.; Morikawa, Y; Shiomi, H. 1984: LDV measurements of an air-solid two-phase flow in a vertical pipe. J. Fluid Mech. 139, 417 - 434

    Google Scholar 

  • Wells, M. R.; Stock, D. E. 1983: The effect of crossing trajectories on the dispersion of particles in a turbulent flow. J. Fluid Mech. 136, 31 - 42

    Google Scholar 

  • Yianneskis, M.; Whitelaw, J. H. 1984: Velocity characteristics of pipe and jet flows with high particle concentration. Paper presented at Energy Sources Technology Conference, New Orleans (ASME fluids Eng. Conf.) Trans. ASME 13, 12–15

  • Zisselmar, R.; Molerus, O. 1979: Investigation of solid-liquid pipe flow with regard to turbulence modification. Chem. Eng. J. 18, 223 - 239

    Google Scholar 

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Authors and Affiliations

  1. Dept. of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 1206 West Green Street, 61801, Urbana, IL, USA

    L. M. Liljegren & N. S. Vlachos

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  1. L. M. Liljegren
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  2. N. S. Vlachos
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Liljegren, L.M., Vlachos, N.S. Laser velocimetry measurements in a horizontal gas-solid pipe flow. Experiments in Fluids 9, 205–212 (1990). https://doi.org/10.1007/BF00190420

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