As a result, the surface of the water forms not an exact sine wave, but more a trochoid with the sharper curves upwards as modeled in trochoidal wave theory.
12.
Earlier attempts to describe surface gravity waves using potential flow were made by, among others, Gerstner derived a nonlinear trochoidal wave theory in 1802, which however is not irrotational.
13.
Assignment to the genus " Globigerina " was based on the globular to ovate chambers and trochoidal coiling, however true " Globigerina " is limited to the Cenozoic.
14.
Also the phase speed is independent of the trochoidal wave's amplitude, unlike other nonlinear wave-theories ( like those of the Stokes wave and cnoidal wave ) and observations.
15.
""'Naedyceras " "'is described as having a loosely coiled low-spired coiled dextral torticonoc . or trochoidal, shell with a flattened dorsum and subtriangular whorl section.
16.
A trochoidal curve can be defined as the path traced by the sum of two vectors, each moving at a uniform speed in a circle or in a straight line ( but not both moving in a line ).
17.
However, patented design such as, G . J . Watt, 1974, for a " Wankel Engine Cylinder Generating Machine ",, " Apparatus for machining and / or treatment of trochoidal surfaces " and, " Device for machining trochoidal inner walls ", and others, solved the issue.
18.
However, patented design such as, G . J . Watt, 1974, for a " Wankel Engine Cylinder Generating Machine ",, " Apparatus for machining and / or treatment of trochoidal surfaces " and, " Device for machining trochoidal inner walls ", and others, solved the issue.
19.
Oil pressure is provided by the trochoidal pump, driven by a steel spur gear off the crankshaft . The main bearings, crank pins, transmission main shaft, clutch bushing, shifter fork guide bar, and rocker arms are lubricated by pressurized oil, whereas the rest of the engine is lubricated by oil splash .
20.
This analysis showed that both the Weather Channel and TWISTEX vehicles entered the tornado through the less intense north / northwestern side, then were impacted by the internal sub-vortex, which contained radar-indicated winds approaching and was moving in a complex quasi-trochoidal pattern, sometimes nearly stationary, sometimes with forward speeds over.
