..., complementing an exhaustive experimental program, presents a computational fluid dynamics (CFD) analysis to predict the leakage and dynamic force coefficients of a circumferentially grooved seal supplied with air in an oil mixture with a GVF varying from 0 to 0.7. The test seal has 14 grooves, an overall axial...

...Shuai Mo; Changpeng Zhou; Heyu Dang In order to study the influence of fuel injection nozzle arrangement on the lubrication effect of arc tooth cylindrical gear, a model of fuel injection lubrication was established, and computational fluid dynamics (CFD) software was used for simulation...

... the multiphysics simulation software ansys , wherein an iterative implicit coupling scheme is implemented to facilitate the interaction between fluid and solid components. The model uses a finite volume method (FVM) based computational fluid dynamics (CFD) solver to determine the lubricant flow behavior using...

... thermal boundary conditions, and (d) assessing on the discrepancies between the present (Navier–Stokes) approach and previous works based on the solution of the Reynolds equation. CFD studies offer substantial advantages, in particular the ability to modify design parameters in a straightforward...

...Patrick J. Migliorini; Alexandrina Untaroiu; Houston G. Wood; Paul E. Allaire This paper presents a new computational fluid dynamics (CFD)/bulk-flow hybrid method to determine the rotordynamic characteristics of annular gas seals. The method utilizes CFD analysis to evaluate the unperturbed base...

...Yifan Qiu; M. M. Khonsari In this study, a three-dimensional thermohydrodynamic (THD) CFD model is developed to study the characteristics of an inward pumping spiral groove mechanical seal pair using a commercial CFD software CFD-ACE + . The model is capable of predicting the temperature...

...Markus Hartinger; Marie-Laure Dumont; Stathis Ioannides; David Gosman; Hugh Spikes In this paper a computational fluid dynamics (CFD) approach for solving elastohydrodynamic lubrication using the freely available package OPENFOAM is introduced. The full Navier–Stokes equations are solved, which...

...Jiang Li; Haosheng Chen A discrete probability distribution function is used to represent the squared transverse roughness effect in a modified Reynolds equation, and the Reynolds equation is used to calculate the hydrodynamic lubrication in a slider-disk interface compared to the CFD method. When...

... coefficients. The computed rotordynamic coefficients are compared to the test data and ISOTSEAL 1D tool predictions. Table 3 shows seal leakages computed using CFD with the coarse and the fine meshes and their comparison to the test data and 1D code predictions. All the considered methods show...

... laminar flow sealing materials mechanical seal flow field CFD K−ε turbulence model fractional approach method The most practical and common method for preventing process fluid (sometimes hazardous) from leaking out of the pump into the surroundings is to isolate the rotating shaft...

... + ∂ 2 U Z ∂ Z 2 ) 01 11 2005 06 03 2006 flow simulation seals (stoppers) rings (structures) external flows Navier-Stokes equations cooling numerical analysis mechanical seal flow field CFD SIMPLE algorithm pressure correction method...