Abstract
The structure and the properties of the air flow developing when an intake system (in particular, a turbojet engine) operates near a surface are studied. On the basis of numerical calculations, the conditions of onset, the intensity, and the structure of the vortex flow ascending from the surface toward the intake are determined. From an analysis of the particle transport toward the intake by the vortex flow, the main factors responsible for the rise of large particles and objects are determined and the conditions of minimization of the probability of large particles entering the intake are found.
Similar content being viewed by others
References
A.I. Khokhlov, “Investigation of the Intake of Foreign Objects by Aircraft Engines,” Trudy TsAGI, No. 1843 (1977).
J.L. Colehour and B.W. Farquhar, “Inlet Vortex,” J. Aircraft 8(1), 39–43 (1971).
D.L. Motycka, W.A. Walter, and G.L. Muller, “An Analytical and Experimental Study of Inlet Ground Vortices,” AIAA Paper, No. 1313 (1973).
A.N. Gulyaev, V.E. Kozlov, and A.N. Sekundov, “A Universal One-Parameter Model for Turbulent Viscosity,” Fluid Dynamics 28(4), 485–494 (1993).
I.A. Brailko and S.Yu. Krasheninnikov, “Study of Aerodynamic Characteristics of Chevron Nozzles on the Basis of Numerical Calculation of the Flowfield,” Fluid Dynamics 40(2), 233–244 (2005).
S.Yu. Krasheninnikov and E.G. Rogal'skaya, “Propagation of Jets from Rectangular Nozzles when Free or near a Screen,” Fluid Dynamics 14(4), 516–514 (1979).
A.K. Gupta, D.G. Lilli, and H. Syred, Swirl Flows (Abacus Press, Tunbridge, 1992).
S.Yu. Krasheninnikov and D.E. Pudovikov, “Entry of Foreign Particles into an Engine,” Tekhn. Vozd. Flota 79(3, 4), 66–72 (2005).
Additional information
Original Russian Text © S.Yu. Krasheninnikov, D.E. Pudovikov, 2007, published in Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, 2007, Vol. 42, No. 4, pp. 162–175.
Rights and permissions
About this article
Cite this article
Krasheninnikov, S.Y., Pudovikov, D.E. Induced flow and ascent of heavy particles when an air intake operates near a surface. Fluid Dyn 42, 654–665 (2007). https://doi.org/10.1134/S0015462807040151
Received:
Issue Date:
DOI: https://doi.org/10.1134/S0015462807040151