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VDI Wissensforum GmbH - Kupplungen und Kupplungssysteme in Antrieben 2021

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VDI Wissensforum GmbH (ed.)

Kupplungen und Kupplungssysteme in Antrieben 2021

Series: VDI-Berichte

Volume 2382 2021

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R. Leister, J. Kriegseis, B. Frohnapfel, D. Gatti, A. F. Najafi Analytical modeling and dimensionless characteristics of open wet clutches in consideration of gravity S. 129-144

„… open state condition. The flow conditions in the fluid flow of an open wet clutches are analyzed by …” „… technique of numerical analysis inherently is in need of appropriate fluid flow models and the …” „… lack of the fact of an energy loss in open state condition. The flow conditions in the fluid flow of …”

V. Föge, S. Blaschke New semi-dry friction solution for highly integrated active torque-controlled drives S. 103-114

„… application depending on the oil flow-rate. Respectively we have a wide spread from 6.000.000 L oil flow over …” „… lower viscosity fluids. The high customer expectations concerning comfort do not allow any NVH (Noise …” „… oil volume and/or use of new fluid technologies with very low viscosity leads to new challenges in …”

R. Leister, S. Pasch, B. Frohnapfel, J. Kriegseis, P. Mattern, T. Fuchs Hochaufgelöste, optische Geschwindigkeitsmessungen in einer radialgenuteten, offenen, nasslaufenden Lamellenkupplung S. 313-318

„… phase resolved 1D3C velocity field of the gap and was able to resolve all relevant flow structures. As …” „… flow and offer the potential to be part of design and construction process at an early stage of such …” „… (2002) [6] Leister, R., Fuchs, T., Mattern, P., Kriegseis, J.: Flow structure identification in a …”

M. Hoić, B. Škugor, A. Miklik, J. Deur, A. Tissot Experimental characterization and modeling of dry clutch wear with emphasis on fading effect S. 265-278

„… multi-axis and stiff torque/normal force piezoelectric sensory equipment. Cooling fluid which flows through …”

doi.org/10.51202/9783181023822

Marcel König - Partitioned Solution Strategies for Strongly-Coupled Fluid-Structure Interaction Problems in Maritime Applications

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Marcel König

Partitioned Solution Strategies for Strongly-Coupled Fluid-Structure Interaction Problems in Maritime Applications

Series: Mechanik/Bruchmechanik

Volume 351 2018

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Bibliography S. 252-266

„… element modeling of fluid flow with moving free surfaces and interfaces including fluid-solid interaction …” „… fluid-structure interaction between elastic object and laminar incompressible flow”. In: Fluid …” „… discretised fluid flow equations by operatorsplitting”. In: Journal of Computational Physics 62 (1985), pp …”

Benchmark Problems S. 158-217

„… flexible membrane in channel flow. Parameter FSI1 FSI2 FSI3 Fluid Density ρf/kg/m3 103 103 103 Kinematic …” „… , and (c) fluid mesh for the spherical dome in channel flow. 182 6.9 Pressure Pulse in a Straight …” „… laminar flow of an incompressible Newtonian fluid through a straight elastic vessel. Originally proposed …”

Fluid Problems S. 5-24

„… technical and most maritime applications, the Mach number Ma of the flow, which relates the maximum fluid …” „… restrictions on the behavior of the fluid flow, which leads to Laplace’s equation as the governing equation …” „… 2 Fluid Problems In this chapter, we discuss the governing fluid equations and present two …”

Titelei/Inhaltsverzeichnis

„… Partitioned Solution Strategies for Strongly-Coupled Fluid-Structure Interaction Problems in Maritime …” „… Applications Partitioned Solution Strategies for Strongly-Coupled Fluid-Structure Interaction Problems in …” „… Fluid-Structure Interaction Problems in Maritime Applications M.Sc. Marcel König, Hamburg Mechanik …”

Introduction S. 1-4

„… coupled if the fluid flow induces a structural deformation that is, however, considered small enough to …” „… structural deformation is considered to have a notable impact on the behavior of the fluid flow and vice …” „… 1 Introduction Coupled multifield problems in general and fluid-structure interaction (FSI …”

Advanced Applications S. 218-240

„… assumption of potential flow and solve this fluid problem using the BEM implemented in panMARE [12]. Due to …” „… varying fluid pressure p(z) = −ρwgz and an added mass coefficient ζ = 1 includes the effect of increased …” „… flow field around the floating platform. In order to save computational cost, we again resort to the …”

Coupled Problems S. 42-97

„… problem. A prominent example of surface-coupled problems are FSI problems, where the fluid flow causes a …” „… deformation of the mechanical structure, which in turn also leads to a change in the surrounding fluid flow …” „… 4 Coupled Problems Having reviewed the fluid and structural equations in Chapter 2 and 3, we will …”

Software Library comana S. 98-157

„… solved several times within the same time increment (lines 6 and 14). Furthermore, the program flow …” „… communication to the master process (line 18). Since these functions interrupt the regular program flow of the …” „… various open source and commercial solvers for fluid dynamics, structural mechanics and thermodynamics …”

doi.org/10.51202/9783186351180

Ralph Meyer - XXXVI. Internationales μ-Symposium – Bremsen-Fachtagung

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Ralph Meyer (ed.)

XXXVI. Internationales μ-Symposium – Bremsen-Fachtagung

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 806 2017

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M. Streitenberger, S. Yigit, J. Wuchatsch Multiphysical Simulation of Brake Fluid Temperature Rise during Mountain Descent S. 97-114

„… performed. The flow field and the temperature distribution in fluid and solids are determined in a …” „… 97 Multiphysical Simulation of Brake Fluid Temperature Rise during Mountain Descent M …” „… marcel.streitenberger@opel.com 1 Abstract During excessive braking, brake fluid temperature within hydraulic brakes rises. As a …”

doi.org/10.51202/9783186806123

Matthias Patrick Alexander Mrosek - Model-Based Control of a Turbocharged Diesel Engine with High- and Low-Pressure Exhaust Gas

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Matthias Patrick Alexander Mrosek

Model-Based Control of a Turbocharged Diesel Engine with High- and Low-Pressure Exhaust Gas

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 803 2017

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Semi-Physical Mean Value Engine Model S. 12-33

„… Value Engine Model For compressible fluids the flow restriction can be treated as an isenthalpic …” „… cooling fluid is the engine coolant, while the intercooler is cooled by an air flow. These heat exchangers …” „… depend on the volume flow rates of the gas PVgas and the cooling fluid PVcl, while the surface areas …”

Engine Configuration and Modelling S. 8-11

„… pressure level. Further, it has the objectives to reduce the air mass flow rate in case of a Diesel …” „… mass flow rates. At low mass flow rates the guiding vanes of the VGT are closed, so that the gas is …” „… further accelerated and the turbine delivers more power to drive the compressor. At high mass flow rates …”

System Properties of the Air Path with HP- and LP-EGR S. 34-60

„… OPmeth can be determined via the flow equation for compressible fluids (3.22). Finally, the states in the …” „… the flow equation for compressible fluids (3.22) cannot be easily solved. However, sith should …” „… throttle the mass flow rate only moderate. Hence, the flow equation for incompressible fluids (3.21) is …”

Bibliography S. 190-204

„… . MTZ worldwide edition, 73(2):30–36. Bohn, D., Heuer, T., and Kusterer, K. (2005). Conjugate flow and …” „… edition, 71(10):34–39. Greitzer, E. (1976). Surge and rotating stall in axial flow compressors - Part 1 …” „… , M., and Stefanopoulou, A. G. (1997). Issues in modelling and control of intake flow in variable …”

Titelei/Inhaltsverzeichnis

„… Turbocharger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.3.1 Mass Flow Rate …” „… Signal Flow Diagram . . . . . . . . . . . . . . . . . 32 3.5 Summary …” „… Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 7.4.7 Conclusions on the …”

Air Path Control Design and Dynamical Reference Value Generation S. 102-167

„… for compressible fluids. Instead, the mass flow rates corresponding to the reference values Pmhp …” „… mean value model the HP-EGR-valve is not modelled by the flow equation for compressible fluids. Instead …” „… incompressible fluids. Next, the turbine flow equation (3.22) is solved for the currently allowed maximal turbine …”

Emission and Combustion Models S. 61-85

„… combustion process by computational fluid dynamics, multi-zone or single-zone models. These models utilise …” „… b) and Mrosek (2017). In a nutshell these dynamics depend on engine speed, gas volume flow in the …” „… in the intake and exhaust system, while pressures and mass flow rate can be measured without …”

doi.org/10.51202/9783186803122

VDI Wissensforum GmbH - LAND.TECHNIK AgEng 2023

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VDI Wissensforum GmbH (ed.)

LAND.TECHNIK AgEng 2023

Series: VDI-Berichte

Volume 2427 2023

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S. Geißler, T. Herlitzius Simulation of filling and venting operations in agricultural cold heat networks by using CFD and the Volume of Fluid method S. 417-424

„… two-phase flow model is created using the Volume of Fluid method. Intention The Storage of warmth or cold …” „… interface between the fluids is only implicitly known in the VOF method. It is suited to simulate flows of …” „… operate first. A further increase of the volumetric flow is required to ensure that all pipes are flowed …”

X. Tian, R. P. Jenkins, J. Lengacher, A. Vacca, S. Fiorati, F. Pintore, D. Cristofori An Analysis of Mixed Hydraulic and Electric Configurations for the Actuation of Tractor Auxiliary and Implement Functions to Reduce Power Consumption S. 1-14

„… , seeders, and bailers, where the conventional actuation technology is fluid power. The state-of the-art …” „… characterized with high-pressure, low-flow rate operational characteristics. Together with the high cost for …” „… flow rate levels are taken into consideration. Calculation will be taken to trace back the mechanical …”

S. Becka CFD/DEM coupling for the optimization of air conveyor sections of pneumatic seed drills S. 413-416

„… the flow velocities inside a distribution head. The aim is to homogenize the air distribution to the …” „… outlets. With the aid of statistical methods, different geometric variables influencing the flow behaviour …” „… resulting air distribution. Fig. 1: Flow simulation of the distribution head Finally, grains imaged by …”

A. Tamrakar, M. Roberge Grain Handling Simulations in Combine Harvester – Simulation Development, Validation and Optimization S. 395-402

„… models of grain flow that can be used for design improvements and operation optimization. In this paper …” „… , a review of high-fidelity Discrete-Element Method (DEM) simulations used to model grain flow through …” „… VDI-Berichte Nr. 2427, 2023 395engineers, for example, can study how changes in grain flow rate affect the …”

D. Jung, M. Rittershofer Side Slope Compensation Conveyor for Combine Harvesters S. 125-130

„… Fluid Dynamics (CFD) analysis was performed to optimize the design and compared against the current …” „… material distribution on the sieve surfaces. Therefore, most of the air stream flows through the unloaded …”

doi.org/10.51202/9783181024270

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