...Lucas Hildebrand; Philipp Beierer; Thomas Lohner; Karsten Stahl For the reliable operation of a gearbox, consistently sufficient lubrication of machine elements is necessary. Thus, the gearbox fluid flow plays an important role. The state of the art indicates that computational fluid dynamics (CFD...

... fluid dynamics (CFD) simulations are conducted to evaluate an air thrust foil bearing model performance. The highest temperature value occurring in the fluid and load-carrying capacity is selected as the output to find optimum design values. The design of experiments (DOE) technique is utilized...

... (CFD) simulations and an effective film thickness analysis framework, the additional groove shear stress component is identified as a form shear stress (FSS) due to its clear relationship to the effective film thickness behavior. The FSS is quantified as a correction to traditional shear stress...

... splashing inside the gearbox is also presented and compared to computational fluid dynamics (CFD) results from the lattice-Boltzmann method with the volume of fluid model, instead of the traditional finite volume method. Four different configurations, including a spur gear based on the standard FZG geometry...

..., 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...

... the load carrying capacity. The bearing tribological performance is characterized by means of computational fluid dynamics (CFD) simulations, based on the numerical solution of the Navier–Stokes and energy equations for incompressible flow. Realistic boundary conditions are implemented. The effects...

...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...

... rig for seal design and optimization. seals (stoppers) computational fluid dynamics rotors design engineering compressors numerical analysis CFD hole-pattern seal gas seal damper seal rotordynamic coefficients centrifugal compressor The operation of high-performance...

... 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 and its...

... A CFD analysis of the flow inside the chamber of a seal is preformed and a series of flow simulations for the flow around the mechanical seal rings is presented. In this paper only laminar flow is considered. This applies when the fluid has a high viscosity such as the case when engine oil is used...