Potential flow in engine valves Page: 23 of 29
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N.A.C.A. Technical Memorandum No. 343
.2 .4 .6 .8
Fig.6 Velocity against the valve lift.
Fig.7 Angle of
.5 1.0 1.5
deflection of flow I
2.0 2.5 3.0
against the valve lift
o n= -m= ,
Schr nk' s esult m =
for := .2
0 .5 1.0 1.5
Fig.8 Coefficient of contraction k = k/m against n
Figs. 6,7 & 8
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Eck, Bruno. Potential flow in engine valves, report, December 1, 1925; (digital.library.unt.edu/ark:/67531/metadc65148/m1/23/: accessed February 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.