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Expressions for pressure and velocity distributions in nonuniformly aerated grain bulks


, : Expressions for pressure and velocity distributions in nonuniformly aerated grain bulks. Journal of Agricultural Engineering Research 22(1): 27-35

Currently accepted methods for predicting air flow and pressure distributions in aerated grain stores have involved either electrical analogue techniques or finite difference solutions of Laplace's equation. When determining the air flow distribution in a circular silo, these methods may be experimentally or computationally cumbersome. In this work explicit analytic expressions are presented for pressure and flow distributions in aerated grain silos and sheds fitted with circular and linear aeration ducts respectively placed symmetrically about the center. A finite difference solution of Laplace's equation which exploits the banded form of the coefficient matrix is also presented. In this way a direct, as opposed to iterative, solution is possible which yields very large savings in computing time. Strictly, the analytic expressions apply to grain bulks of infinite height but it is shown by comparison with the finite difference solution of Laplace's equation, that they are accurate for grain stores of aspect ratio 2 or greater. A notable feature of the expressions is that they enable the pressure and velocity distributions to be determined very easily and this represents a significant improvement over previously published techniques.

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Accession: 005432471

DOI: 10.1016/0021-8634(77)90090-7

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Bunce J.A., 1976: Leaf expansion in relation to leaf water potential in soybeans. Plant Physiology (Rockville) 57(5 SUPPL): 44

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STENGER.H.H.; GUTTICH.H., 1957: Intubation anesthesia with nitrous oxide-oxygen combined with local anesthesia, an explosion-free general anesthetic in throat, nose and ear surgery. Hno 6(5): 144-146

Mcfarlane M.J., 1990: Supportive evidence of the validity of the epidemiologic necropsy. Clinical Research 38(2): 699A

Albarillo, F.; O'Keefe, P., 2016: Opportunistic Neurologic Infections in Patients with Acquired Immunodeficiency Syndrome (AIDS). Infections of the central nervous system (CNS) in individuals with human immunodeficiency virus (HIV) remain a substantial cause of morbidity and mortality despite the introduction of highly active antiretroviral therapy (HAART) especially in the...

Chow, Pnp, 1984: Adjuvant enhancement of herbicidal activity, penetration and translocation of chlorsulfuron in relation to leaf-cell membrane permeability of rapeseed. Herbicide activity in plants and soils: proceedings of the 11th Workshop of Chemistry and Biochemistry of Herbicides edited by Paul NP Chow and Cynthia A Grant: 7

Pascal, G.; Durand, G.; Penot, E., 1970: Influence of di-tert-butylhydroxytoluene (B.H.T.) ingestion on body growth and hepatic tissue composition of white rats. Archives des Sciences Physiologiques 24(1): 37-54

NITO.Y.; JOHNSON.W.H.; MONEY.K.E.; IRELAND.P.E., 1964: The Non-Auditory Labyrinth And Positional Alcohol Nystagmus. Acta Oto-Laryngologica 58: 65-67