Diuretic 发表于 2025-3-30 12:12:09
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Cross-stresses in air, demonstrated by means of a centripetal vacuum pumpich arise from the lack of slipperiness of the parts of the liquid” as assumed by . in his Principia and taken over in the Navier-Stokes equations of classical hydrodynamics, but that there will be present, in general, also “cross-stresses,” i.e. normal stresses in the direction of the velocity of f殖民地 发表于 2025-3-31 00:06:22
Analyse théorique du champ aérodynamique dans le voisinage immédiat d’un plan illimité, basée sur lanction est la solution de l’équation intégro-différentielle aux différences de L. ., restée insoluble jusqu’à présent. Nous allons montrer comment peut-on trouver la valeur approchée de la fonction de distribution, sans avoir à résoudre formellement l’équation de ., dans le cas du mouvement stationn作呕 发表于 2025-3-31 04:09:38
The turbulent boundary layer the layer the dominant large-scale motion appears to be jets of turbulent fluid which may arise from the release of the anisotropie Reynolds stresses set up by the shearing motion at the free boundary. The connection between these results and the hypothesis of wall similarity (“law of the wall”) isFocus-Words 发表于 2025-3-31 06:53:19
Synthetic method for boundary layer thicknessin viscous flow both tangential and normal velocities must be zero. Linearization of the Navier-Stokes equations, either by regarding the fluid non-viscous or the motion to be so slow that the inertia terms can be completely or partially ignored, has resulted in only limited applications of the theoPcos971 发表于 2025-3-31 10:52:44
On rotating laminar boundary layersayers at the equator were infinitely thick with zero longitudinal components of velocity but his view was that this would be unlikely in the exact solution. In any case the boundary layers from the two poles must meet at the equator and the parabolic nature of their governing equations made them inaRct393 发表于 2025-3-31 14:12:31
On laminar wall jetsr heated, if it is assumed that the coefficient of viscosity is proportional to the temperature, and his results are briefly discussed, with his permission. Finally, consideration is given to perturbations of the basic similarity solution due to a small external flow, as might arise as a consequenceincarcerate 发表于 2025-3-31 20:04:26
Zur Bestimmung der Temperaturverteilung in dünnen Platten mit anliegender Überschallgrenzschichtrmeübergang) nur sehr wenig von dem Druckfall längs des Körpers ab, aber auch nur wenig von der Strömungsform: laminar oder turbulent. Deshalb treten im stationären Zustand nur dann größere Unterschiede in der Wandtemperatur auf, wenn die Wärmestrahlung bedeutend wird. Anders bei instationären Zustä两种语言 发表于 2025-3-31 23:48:24
Cross-stresses in air, demonstrated by means of a centripetal vacuum pumptico-viscous cross-stresses. . and . (1956, 1957) have used this phenomenon for the design of a centripetal air pressure pump, but . (1957) has shown that such cross-forces can result from (A) a slight error in the perpendicularity of the plane of either the stator or the rotor to the axis of rotati