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040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
0861 |aD68-21/37-1995E-PDF
1001 |aWatt, G. D., |eauthor.
24510|aPROP3 : |brevised compressibility corrections for wind tunnel tests of marine propellers / |cGeorge D. Watt ; approved by H.M. Merklinger.
264 1|aDartmouth, N.S. : |bDefence Research Establishment Atlantic = Centre de recherches pour la défense atlantique, |bNational Defence, Research and Development Branch = Défense nationale, Bureau de recherche et développement : |cFebruary 1995.
300 |a1 online resource (v, 36 pages) : |billustrations, graphs.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aTechnical memorandum ; |v95/207
500 |aDigitized edition from print [produced by Defence Research and Development Canada].
504 |aIncludes bibliographical references (page 34).
5203 |a"A computer program is described which predicts the effects of compressibility on marine propeller thrust and torque measurements made in wind tunnels. The flow model is quite simple, combining classical lifting line and momentum theory to estimate thrust and torque. Compressible flow effects are predicted by applying the Prandtl-Glauert compressibility correction to two-dimensional blade section lift predictions. Simple empirical stall models extend the predictions to extreme advance ratios. Supersonic conditions are not modelled. The program supplies the ratios of compressible to incompressible thrust and torque predictions as the compressibility correction. These corrections are determined primarily by propeller tip Mach number and are shown to be insensitive to errors in the inflow velocity profile"--Abstract, page ii.
546 |aIncludes abstracts in English and French.
650 0|aSubmarines (Ships)|xHydrodynamics|xMathematical models.
650 0|aPropellers|xModels.
650 0|aWind tunnel testing.
650 6|aSous-marins|xHydrodynamique|xModèles mathématiques.
650 6|aHélices|xModèles réduits.
650 6|aEssais en soufflerie aérodynamique.
7102 |aDefence Research Establishment Atlantic, |eissuing body.
7101 |aCanada. |bDepartment of National Defence. |bResearch and Development Branch, |eissuing body.
830#0|aD.R.E.A. technical memorandum ;|v95/207.|w(CaOODSP)9.941838
85640|qPDF|s1.76 MB|uhttps://publications.gc.ca/collections/collection_2025/rddc-drdc/D68-21-37-1995-eng.pdf