Abstract
A method of calculating the dispersed-phase concentration in dusty gas flow, based on using the Lagrange form of the particle continuity equation, is developed. The method makes it possible to calculate the particle concentration along a fixed particle trajectory and to investigate flow regions with multiple intersection of particle trajectories and particle accumulation zones. The use of the method is illustrated by numerical calculations of the near-symmetry-axis region in a hypersonic flow colliding with a two-phase supersonic flow from a point source (the model of evaporation of a comet nucleus). It is demonstrated that, between the bow and termination shock waves, the particle concentration distribution may have a multi-layer structure with alternating layers of high and low particle concentration and sharp particle accumulation near the envelops of the particle trajectories.
Similar content being viewed by others
References
Baranov, V.B.: 1993, Gasdynamical structure of the heliosphere, Fluid Dyn. 3, 3–24.
Bondarev, E.N., et al.: 1993, Aerohydromechanics, Mashinostroenie, Moscow (in Russian).
Carlson, D.J. and Hoglund, R.F.: 1964, Particle drag and heat transfer in rocket nozzles, AIAA J. 2 (11), 1980–1984.
Chernyi, G.G.: 1959, Gas Flows at High Supersonic Velocity, Fizmatgiz, Moscow (in Russian).
Crowe, C.T.: 1982, Review – numerical models for dilute gas-particle flows, ASME J., Fluids Engin. 104, 297–303.
Hayes, W.D. and Probstein, R.F.: 1959, Hypersonic Flow Theory, Acad. Press, New York.
Marble, F.: 1970, Dynamics of dusty gases, Ann.Rev.Fluid Mech. 2, 397–446.
Osiptsov, A.N.: 1984, Investigation of regions with unbounded growth of the particle concentration in disperse flows, Fluid Dyn. 3, 378–384.
Osiptsov, A.N.: 1997, Mathematical modeling of dusty-gas boundary layers, Appl.Mech.Rev. 50 (6), 357–370.
Osiptsov, A.N. and Teverovskii, M.A.: 1998, Hypersonic flow past a supersonic two-phase source, Fluid Dyn. N3, 407–418.
Sedov, L.I.: 1971, A Course in Continuum Mechanics, Wolters-Noordhoff Publishing, Groningen.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Osiptsov, A. Lagrangian Modelling of Dust Admixture in Gas Flows. Astrophysics and Space Science 274, 377–386 (2000). https://doi.org/10.1023/A:1026557603451
Issue Date:
DOI: https://doi.org/10.1023/A:1026557603451