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1 число грасгофа для переноса массы
Русско-английский физический словарь > число грасгофа для переноса массы
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2 число Грасгофа для переноса массы
Makarov: Grashof number for mass transferУниверсальный русско-английский словарь > число Грасгофа для переноса массы
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Grashof number — The Grashof number mathrm{Gr} is a dimensionless number in fluid dynamics and Heat Transfer which approximates the ratio of the buoyancy to viscous force acting on a fluid. It frequently arises in the study of situations involving natural… … Wikipedia
Nusselt number — In heat transfer at a boundary (surface) within a fluid, the Nusselt number is the ratio of convective to conductive heat transfer across (normal to) the boundary. Named after Wilhelm Nusselt, it is a dimensionless number. The conductive… … Wikipedia
Franz Grashof — (July 11, 1826 in Düsseldorf October 26, 1893 in Karlsruhe) was a German engineer. He was a professor of Applied Mechanics at the Technischen Hochschule Karlsruhe. He is one of the founding directors of Verein Deutscher Ingenieure (VDI) in 1855.… … Wikipedia
Prandtl number — The Prandtl number mathrm{Pr} is a dimensionless number approximating the ratio of momentum diffusivity (kinematic viscosity) and thermal diffusivity. It is named after the German physicist Ludwig Prandtl.It is defined as::mathrm{Pr} = frac{… … Wikipedia
Dimensionless 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… … Wikipedia
Natural convection — Bénard cells. Natural convection is a mechanism, or type of heat transport, in which the fluid motion is not generated by any external source (like a pump, fan, suction device, etc.) but only by density differences in the fluid occurring due to… … Wikipedia
Convection — This figure shows a calculation for thermal convection in the Earth s mantle. Colors closer to red are hot areas and colors closer to blue are cold areas. A hot, less dense lower boundary layer sends plumes of hot material upwards, and likewise,… … Wikipedia
Fluid dynamics — Continuum mechanics … Wikipedia
Damköhler numbers — The Damköhler numbers (Da) are dimensionless numbers used in chemical engineering to relate chemical reaction timescale to other phenomena occurring in a system. It is named after German chemist Gerhard Damköhler (1908–1944). There are several… … Wikipedia