gas dynamics
51Oblique shock — A small scale X 15 placed in a NASA supersonic wind tunnel produces an oblique shock wave at the nose of the model (along with other shocks). An oblique shock wave, unlike a normal shock, is inclined with respect to the incident upstream flow… …
52Riemann problem — A Riemann problem, named after Bernhard Riemann, consists of a conservation law together with a piecewise constant data having a single discontinuity. The Riemann problemis very useful for the understanding of hyperbolic partial differential… …
53Detonation — For other uses, see Detonation (disambiguation). Detonation of the 500 ton TNT explosive charge as part of Operation Sailor Hat. The initial shock wave is visible on the water surface and a shock condensation cloud is visible overhead …
54Fanno flow — refers to adiabatic flow through a constant area duct where the effect of friction is considered. Compressibility effects often come into consideration, although the Fanno flow model certainly also applies to incompressible flow. For this model,… …
55Howard Wilson Emmons — (1912 1998) was a professor in the department of Mechanical Engineering at Harvard university [Land and Trefethen, 1999] . During his career he conducted original research on fluid mechanics, combustion, and fire safety. He helped design the… …
56BECKER — GERMANY (see also List of Individuals) 14.2.1929 Darmstadt/D 14.11.1984 Darmstadt/D Ernst Becker made his engineering studies at the University of Göttingen, where he also received the PhD title in 1954. Becker then was a collaborator of… …
57Vorticity — is a mathematical concept used in fluid dynamics. It can be related to the amount of circulation or rotation (or more strictly, the local angular rate of rotation) in a fluid.Clancy, L.J., Aerodynamics , Section 7.11] The average vorticity zeta… …
58Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… …
59Paul Nemenyi — Paul Felix Nemenyi (June 5, 1895, Fiume, Kingdom of Hungary – March 1, 1952, Washington DC, USA) was a Jewish Hungarian physicist specializing in fluid dynamics. He was possibly the father of former World Chess Champion Bobby Fischer.BiographyHe… …
60PETROV G I — RUSSIA (see also List of Individuals) 31.5.1912 Pinega/RU 13.5.1987 Moscow/RU Georgy Ivanovich Petrov was born in the Archangel region. He graduated in 1935 from the Department of Aeromechanics at the Moscow State University and then joined as a… …
