Results 71 to 80 of about 359,044 (195)
Sensors, 2007 We present a straightforward method to solve gas damping problems for perfo-rated structures in two dimensions (2D) utilising a Perforation Profile Reynolds (PPR) solver.The PPR equation is an extended Reynolds equation that includes additional terms ...
Peter Raback, Timo Veijola
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Rotation of a spheroid in a simple shear at small Reynolds number
, 2015 We derive an effective equation of motion for the orientational dynamics of a neutrally buoyant spheroid suspended in a simple shear flow, valid for arbitrary particle aspect ratios and to linear order in the shear Reynolds number.
B. Mehlig +6 more
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Lubricants, 2018 The present work is focused on the numerical solution of the complete energy equation used in fluid film lubrication. The work was motivated by the fact that the complete energy equation has no analytical solution that can be used for validations.
Silun Zhang +2 more
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, 1997 The stability of shear flows of electrically conducting fluids, with respect to finite amplitude three-dimensional localized disturbances is considered.
Braginski S. I. +3 more
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THE STUDY ON THE PRIMARY SEALING WITH COAXIAL ROUND-SHAPED SURFACES [PDF]
Fiabilitate şi Durabilitate, 2016 The paperwork studies the way of calculation of the interstitial pressure with Reynolds equation for the particular case of the primary sealing with coaxial round-shaped surfaces, one fixed and the other one rotating around Oz axis.
Monica BÂLDEA +3 more
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Advances in Mathematical Physics, 2016 An unsteady axisymmetric flow of nonconducting, Newtonian fluid squeezed between two circular plates is proposed with slip and no-slip boundaries. Using similarity transformation, the system of nonlinear partial differential equations of motion is ...
A. A. Hemeda, E. E. Eladdad
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Comparison of Hirs' equation of Moody's equation for determining rotordynamic coefficients of annular pressure seals [PDF]
The rotordynamic coefficients of an incompressible-flow annular pressure seal were determined using a bulk-flow model in conjunction with two different friction factor relationships. The first, Hirs' equation, assumes the friction factor is a function of
Nelson, Clayton C., Nguyen, Dung T.
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Derivation of the Reynolds equation for lubrication of a rotating shaft [PDF]
Archivum Mathematicum, 2000 In this paper, using the asymptotic expansion, we prove that the Reynolds lubrication equation is an approximation of the full Navier– Stokes equations in thin gap between two coaxial cylinders in relative motion. Boundary layer correctors are computed. The error estimate in terms of domain thickness for the asymptotic expansion is given. The corrector
Duvnjak, Antonija +1 more
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Large order Reynolds expansions for the Navier–Stokes equations
Applied Mathematics Letters, 2015 We consider the Cauchy problem for the incompressible homogeneous Navier-Stokes (NS) equations on a d-dimensional torus, in the C^infinity formulation described, e.g., in [25]. In [22][25] it was shown how to obtain quantitative estimates on the exact solution of the NS Cauchy problem via the "a posteriori" analysis of an approximate solution; such ...
Carlo Morosi +2 more
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A New Model for Prediction of Heat Eddy Diffusivity in Pipe Expansion Turbulent Flows [PDF]
Iranian Journal of Chemical Engineering, 2005 A new model to calculate heat eddy diffusivity in separating and reattaching flows based on modification of constant Prt is proposed. This modification is made using an empirical correlation between maximum Nusselt number and entrance Reynolds number ...
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