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VDI Wissensforum GmbH - 28. Deutscher Flammentag

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VDI Wissensforum GmbH (Hrsg.)

28. Deutscher Flammentag

Reihe: VDI-Berichte

Band 2302 2017

Treffer in den folgenden Teilen:

D. Nikolaenko, C. Spijker, H. Raupenstrauch Modelling the Jet Cooler for Hot-dip Galvanization of Steel Strips S. 741-746

„… into 2 subdomains, fluid and solid, between which convection and radiation occurs, is meshed into …” „… jetsurface heat interaction between the fluid region (describing the cooling gas) and the solid region …” „… constant flow rate and then supplied back into the tubes of each chamber through the side ducts at the …”

B. Peters, M. Mohseni Modeling the combustion of pellet with Extended Discrete Element Method S. 121-130

„… the effect of fluid flow through the solid fuel, the porous media concept is employed in this study …” „… interconnectedness of the void spaces allow the fluid to flow through the material in which by a single fluid (gas …” „… transfer with employing OpenFOAM as Computational Fluid Dynamics (CFD) tool. This leads to encompass the …”

M. Hansinger, H. Müller, M. Pfitzner Large Eddy Simulation einer turbulenten LOx/GCH4 Flamme unter Verwendung der Eulerian Stochastic Fields Methode S. 535-548

„… Wechselwirkungen auf, weswegen es nicht ausreicht das Fluid als ideales Gas zu betrachten. Vielmehr muss der …” „… beschriebenen Fluids normiert. Die Funktion ? = 0,37464 + 1,54226? − 0,26992? 2 berücksichtigt zusätzlich die …” „… nach Harstad und Bellan [11] verwendet. Die PR-ZGL beschreibt das Verhalten eines Fluids über einen …”

T. Zirwes, F. Zhang, J. A. Denev, P. Habisreuther, H. Bockhorn, N. Zarzalis Einfluss von erhöhtem Druck auf die Änderung der Flammendynamik durch Streckung in vorgemischten Flammen S. 549-562

„… a result of the interaction between the fluid flow and the flame’s propagation. It is defined as …” „… general definition can be recast, so that the stretching due to the fluid flow (? ? ) and the influence …” „… stretch, numerical simulations have been performed in this work for 1D premixed counter-flow flames …”

S. J. Baik, B. Rogg Full PDF-Modelling and Parallel Simulation of Liquid- Fuelled Turbulent Spray Flames S. 469-478

„… .: Conditional moment closure for turbulent reacting flow, Physics of Fluids A: Fluid Dynamics, 5(2)(1993) 436 …” „… description of the gaseous flow field as well of the liquid phase. Specifically, the work presented herein …” „… flow involving a gaseous and a liquid phase, generally we consider three velocity components and …”

S. Eckart, S. Voss, H. Krause Charakterisierung von Verlöschungsgrenzen an nicht vorgemischten Gegenstromflammen mit Hilfe der Streckungsratenanalyse S. 649-660

„… non-premixed counter-flow flames using strain-rate analysis S. Eckart*, S. Voss, H. Krause, Institute of …” „… burners. For this purpose an experimental setup with a counter-flow burner based on the design of …” „… University of California, San Diego (UCSD) was used. A counter-flow burner was set up with the possibility …”

C.-P. Ding, A. Renaud, R. Honza, A. Dreizler, B. Böhm Characterization of near-wall flows in a SI engine using high-speed PIV and high-resolution PI S. 345-356

„… the silicone oil droplets (Dow Corning 510 Fluid 50 cST) that were added to the intake air flow 1.5 m …” „… der Daten ermöglicht zukünftige Modellvergleiche und -entwicklungen. Abstract The flow near the …” „… than 90% of the bulk flow velocity. Foster and Witze [18] obtained velocity data up to 60 µm from the …”

C. Yu, U. Maas Numerical Study of turbulent reacting flows with local extinction and re-ignition effects based on a statistical method and REDIM reduced reaction kinetics S. 521-534

„… , while the transported-PDF equation provides the thermo-kinetic state of the flow. Here, a brief …” „… flow is a priori unknown, a transported-PDF equation is solved to obtain the PDF [14] [15]. To reduce …” „… mapping conditioning," Phys. Fluids, vol. 15, pp. 1907-1925, 2003. VDI-Berichte Nr. 2302, 2017 531 [8 …”

M. Vascellari, C. Hasse, S. Halama, M. Steibel, H. Spliethoff Detailed CFD simulations of a 5-MW industrial-scale entrained-flow gasifier using intrinsic char conversion kinetics S. 199-212

„… ., A new k-epsilon eddy viscosity model for high Reynolds number turbulent flows. Computers and Fluids …” „… Detailed CFD simulations of a 5-MW industrial-scale entrained-flow gasifier using intrinsic char …” „… gasification behaviour of different coals at high pressure in the Siemens 5-MW pilot-scale entrained-flow …”

A. Zietak, F. Özdogan, J. Janicka, F. di Mare Entwicklung eines LES/LES-Interfaces für die Simulation der Wandkühlung einer Brennkammer (Work-in-Prozess) S. 765-770

„… internal and external flows. Computers & Fluids, 96, 226-252. [2] Lefebvre, A. H. (1998). Gas turbine …” „… simulations of the flow in the combustor and is being enhanced to perform locally resolved and numerical …” „… can be conveniently adopted in the core flow region. VDI-Berichte Nr. 2302, 2017 765 1. Einleitung …”

C. Spijker, H. Raupenstrauch Numerische Untersuchungen der inneren Vorgänge für Lykopodiumpartikel während einer Staubdeflagration S. 735-740

„… CFD (Computational Fluid Dynamics) Modellen untersucht, welche Vorgänge in diesen Partikeln …” „… Proceedings, Bergen, 2014 [2] Dahoe, A.E., On the decay of turbulence in the 20-litre explosion sphere, Flow …” „… modulation in fuid-particle fows ,International Journal of Multiphase Flow 26, 2000 [8] Kern, H …”

C. Chi, G. Janiga, K. Zähringer, D. Thévenin Indirekte Messung der Wärmefreisetzung in Wasserstoffflammen mittels Spezieskorrelationen S. 625-636

„… Janiga, Katharina Zähringer, Dominique Thévenin, Laboratory of Fluid Dynamics and Technical Flows …” „… two-phase flows using immersed boundaries, Comput. Fluids 131 (2016) S. 123–141. [26] D. G. Goodwin, H. K …” „… to a small range. Considering that larger amounts of O2 are present in the flow, leading in …”

D. Holtz, J. Nocke, E. Hassel CFD-DEM Simulationen für Biomassefeuerungen S. 131-142

„… Simulation von Biomassefeuerungen entwickelt, welches auf einer Kombination von CFD (Computational Fluid …” „… uses a combined CFD (Computational Fluid Dynamics) and DEM (Discrete Element Method) approach. An …” „… kontinuierliche Phase behandelten Fluides, siehe [4]. Ein lineares Feder-Dämpfer Modell findet Verwendung zur …”

M. Zhao, S. A. Kaiser Bildgebende Erfassung von Diesel-Klopfen durch Hochgeschwindigkeitskamera und „Optical Flow“ S. 369-382

„… . Fig. 5: Procedure for flow-field calculation. The vector calculation was performed with pairs of …” „… ) 3156-3163. [20] Product-Manual for DaVis 8.2 - FlowMaster, LaVision GmbH, Göttingen, Germany, 2014, pp …” „… Bildgebende Erfassung von Diesel-Klopfen durch Hochgeschwindigkeitskamera und „Optical Flow …”

F. Edler, B. Geier, W. Reiter, C. Spijker, H. Raupenstrauch Einbindung der Simulation in die Entwicklung eines staubbeladenen Verbrennungsreaktors hinsichtlich Brenner und Reaktordesign S. 729-734

„… Flash- Reaktor mittels CFD-Studien (CFD = Computational Fluid Dynamics) weiterentwickelt. Die …” „… NO formation in laminar opposed-flow partially premixed methane/air flames“, J.-Y., Combustion and …”

F. Zentgraf, M. Stephan, B. Albert, B. Böhm, A. Dreizler Anwendung von strukturierter Beleuchtung auf Gasphasen-Thermometrie mit Phosphorpartikeln S. 705-710

„… .: Simultaneous kHz-rate temperature and velocity field measurements in the flow VDI-Berichte Nr. 2302, 2017 709 …” „… thermographic phosphor particles: a study for averaged imaging. Exp Fluids 58 (2017) S. 82 VDI-Berichte …”

M. von Bohnstein, A. Stroh, J. Ströhle, B. Epple Vorhersage korrosiver Gasatmosphären in der Brennkammer eines Kohlekraftwerks S. 563-572

„… two-phase flow formulation, Prog. Comp. Fluid Dyn. 5 (2005) 345- 361. [16] A. Stroh, F. Alobaid, J.-P …” „… . Richards, A.C. Benim, Assesment of twophase flow models for the simulation of pulverized coal combustion …”

S. Hartl, D. Geyer, A. Dreizler, R. S. Barlow, C. Hasse Gradientenfreie Flammenindentifizierung auf 1D Raman/Rayleigh Messdaten S. 479-492

„… . Dixon-Lewis, A computational model of the structure and extinction of strained, opposed flow, premixed …” „… analysis, Journal of Fluid Mechanics 652 (2010) 45-64. [14] R. Shan, C.S. Yoo, J.H. Chen, T. Lu …” „… . Chen, Structure of hydrogen-rich transverse jets in a vitiated turbulent flow, Combustion and Flame …”

R. Knappstein, G. Kuenne, A. Sadiki, J. Janicka Flamelet-Tabellierung im Kontext der Simulation von Kohlestaubverbrennung S. 613-624

„… Flammen („Flamelets“) im Vorfeld der eigentlichen CFD-Simulation (Computational Fluid Dynamics) mit …” „… Large Eddy Simulation of Premixed Combustion with Tabulated Chemistry. Flow Turbulence and Combustion …” „… : https://www.tue.nl/en/university/departments/mechanicalengineering/research/research-groups/multiphase-and-reactive-flows/ourexpertise/chem1d/ . [8] Ketelheun, A., Kuenne, G. und Janicka, J.: Heat Transfer Modeling in the Context of …”

S. Bürkle, V. Ebert, D. Rauen, A. Dreizler, G. Möller, J. Hees, D. Zabrodiec, A. Maßmeyer, R. Kneer, V. Ebert, S. Wagner Laserbasierte Messung von Temperatur und Spezieskonzentrationen bei der Verbrennung von torrefizierter Biomasse in einer 100 kWth-Staubfeuerungsversuchsanlage S. 69-84

„… sulfur and chlorine gas species during coal combustion and pyrolysis in an entrained flow reactor. Fuel …” „… detection of HCl in gasification processes. Exp in Fluids 49: 961–968, Doi: 10.1007/s00348-010-0904-2 (2010 …”

H. von der Haar, C. Hennecke, F. Dinkelacker Experimentelle und numerische Untersuchungen zur Detektion von Defekten an einer Modellbrennkammer S. 445-456

„… Für die Untersuchung des Einflusses von Störungen auf den Abgasstrahl wurden Verbrennung und Fluid in …” „… - oder dreidimensionalen Strömungsfelder in Fluiden. Das Verfahren beruht auf der Verfolgung von …” „… Partikeln, die dem strömenden Fluid vor der Messebene hinzugefügt werden. Die Partikel werden durch einen …”

T. Klein, C. Kuhr Flächenbrenner zur Zündung einer Feststoffschüttung unter Nutzung eines niederkalorischen Brenngases S. 253-264

„… . Das Fluid wird als ein inkompressibles ideales Gasgemisch aus den Komponenten Wasserstoff, Sauerstoff …” „… . Computers & Fluids 24 (1995) 3, S.227-238. [2] Discrete Ordinates (DO) Radiation Model Theory …” „… Eddy Viscosity Model for High Reynolds Number Turbulent Flows - Model Development and Validation …”

doi.org/10.51202/9783181023020

VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2019

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VDI Wissensforum GmbH (Hrsg.)

Dritev – Drivetrain For Vehicles 2019

Reihe: VDI-Berichte

Band 2354 2019

Treffer in den folgenden Teilen:

R. Gat, M. Ehlen Virtual lubrication analysis – Simulation of oil flow in gearboxes using a novel lagrangian approach S. I-133-I-136

„… coefficients from (moving) components or surfaces to the surrounding fluid in transient free surface flow …” „… Abstract The usage of computational fluid dynamics (CFD) to analyze liquid fluid flows in autonomous key …” „… Virtual Lubrication Analysis – Simulation of Oil Flow in Gearboxes using a novel Lagrangian …”

S. Kurokawa, M. Kunihisa, Y. Oyama Development of a new next-generation CVT for small cars S. I-385-I-396

„… pulley system were optimized, and a high-efficiency belt was adopted. In addition, to reduce fluid …” „… the fluid level was optimally designed. 4.4 Hydraulic system parts The vane pump with a …” „… flow control valve that is used for the JF015E unit was adopted for the new CVT from the standpoints …”

C. Kim New next generation eight-speed automatic transmission for FWD vehicles S. I-397-I-410

„… transmission which has the same power flow as the mass-produced 8-speed transmission. To solve this problem …” „… transfer drive gear with the current power flow intact, at the same time, changed the support structure …” „… and position of C2 clutch, the operating oil pressure path was changed to be able to flow through the …”

T. Pullen Integrated eDrive system for various performance classes S. I-287-I-294

„… flow rate with an accuracy of ± 2%. Numerical fluid dynamic investigations were conducted to optimize …” „… conducted to determine the oil flow rate as a function of the pump speed in the temperature range of -30°C …” „… the design of the inner rotor shaft geometry and the oil outlet holes so that the oil flow in the …”

S. Kluemper Benefits of the new Allison 9-speed fully automatic – Medium duty commercial transmission S. III-61-III-74

„… performance, in that they offer continuous power flow to the wheels even during a shift as opposed to lengthy …” „… desired capability of the OEM. - A shallow sump design to improve ground clearance while reducing fluid …” „… fill requirements - Lifetime fluid fill via a redesigned filtration system - Cooler bypass to …”

A. Moser, F. Brezger Efficiency improvements in transmissions using new latching technologies in clutch & hydraulic actuation systems S. I-427-I-446

„… flow the hydraulic circuit already improves efficiency. In a hybrid, the transmission fluid pump could …” „… the power flow changes from one to the other part of transmission. In both Hybrid or conventional …” „… clutch disks demands a noticeably volume flow, which is typically part of the hydraulic system. Here …”

K. Hasegawa, D. Kosaka, S. Shimizu, K. Kawabata, H. Tsukashima Development of new hybrid AWD system for the SUV segment S. I-501-I-514

„… transmission fluid (ATF) for lubrication, which is also used for motor cooling.To accomplish the performance …” „… feedback control that acts in accordance with the yaw rate deviation Figure 5 shows the overall flow …”

U. Stockinger, H. Pflaum, K. Stahl Single vs. multi-cone synchronizers with carbon friction lining – A comparison of load limits and deterioration behavior S. I-455-I-470

„… performance tests were conducted with a manual transmission fluid MTF-Car from series production (kinematic …” „… and sliding velocity give the mean values over all friction surfaces. The oil flow through a …” „… kept at ϑoil = 80 °C and the oil flow at Voil = 5 l/min. The cycle time was adapted that the specific …”

doi.org/10.51202/9783181023549

Michael Schaub - Experimentelle Betrachtung der Wärmeübertragung durch instationäre freie Konvektion an der vertikalen Platte

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Michael Schaub

Experimentelle Betrachtung der Wärmeübertragung durch instationäre freie Konvektion an der vertikalen Platte

Reihe: Wärmetechnik/Kältetechnik

Band 162 2019

Treffer in den folgenden Teilen:

Literatur S. 103-112

„… . In: Int. J. of Heat and Fluid Flow 27 (2006), Heft 3, S. 445 - 455. [Henkes und Hoogendoorn 1990 …” „… ] Inagaki, T.; Komori, K.: Heat transfer and fluid flow of natural convection along a vertical flat plate …” „… flow of a linearly-stratified fluid with Pr < 1 on an evenly heated semi-infinite vertical plate. In …”

Titelei/Inhaltsverzeichnis S. I-XIV

„… charakteristisch el elektrisch F Fluid is instationär isPh instationäre Phase kin kinetisch X Symbol …” „… . XIII Abstract The present elaboration investigates the influence of unsteady flow structures in …” „… flow in the form of visualizations show a temporarily increased mixing of the boundary layer in the …”

doi.org/10.51202/9783186162199

VDI Wissensforum GmbH - LAND.TECHNIK 2020

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VDI Wissensforum GmbH (Hrsg.)

LAND.TECHNIK 2020

Reihe: VDI-Berichte

Band 2374 2020

Treffer in den folgenden Teilen:

T. Loddenkemper, R. Schulte Spray-IQ Top – An Intelligent PWM Valve For Field Sprayer Nozzles S. 323-328

„… closing time of this signal, the fluid flow through the valve is adjusted. The flow control During …” „… calculated, which is a more precise indicator of the flow rate. This way, the fluid flow through the valve …” „… desired flow rate to the nozzle. This leads to a linear relationship between fluid flow and set value …”

A. Lindenberger, C. Korn Parameter identification for Discrete-Element-Method (DEM) particles of a self-propelled forage harvester (SPFH) chopping sample S. 135-142

„… Crop-flow processes in forage harvesters are influenced by a variety of parameters where machine settings …” „… , to achieve an optimized state, the behavior of crop-flow processes needs to be better understood …” „… . Current knowledge of the crop-flow is typically achieved through empirical testing but limited by the …”

doi.org/10.51202/9783181023747

VDI Wissensforum GmbH - Drivetrain for Vehicles 2016

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VDI Wissensforum GmbH (Hrsg.)

Drivetrain for Vehicles 2016

Reihe: VDI-Berichte

Band 2276 2016

Treffer in den folgenden Teilen:

S. A. Pahlovy, S. Faria Mahmud, M. Kubota, M. Ogawa, N. Takakura Improvement of transmission efficiency by reducing the drag torque in disengaged wet clutch – Development of a model for calculating drag torque or spin loss of disengaged wet clutch of transmission S. 879-896

„… a continuous fluid flow was 100ml/min in between the clutch disk and clutch plate. The results are …” „… fluid is incompressible. (iii) Fluid pressure does not change across the film thickness (iv) The flow …” „… , therefore a viscous force is generated in automatic transmission fluid(ATF) (it is supplied to cool down …”

D. J. Franco, L. Dalla Palma, P. Rossi, F. Panizzolo HVT high dynamics and power management strategies for wheel loader application S. 595-604

„… IFK International Fluid power Conference, Dresden, March 08-10, 2016. [2] Mutschler, S. & Müller, M …” „… power; Identification of this power flow is fundamental for the vehicle power balance; C yan M agenta Y …” „… M ai 17, 2016 | 15:43:28 6 VDI-Berichte 2276, 2016 599 Power flows through the system: Hydraulics …”

F. Brezger, A. Moser Energy Saving Potentials by Advanced Functionalities of Clutch or Brake actuator Systems for Vehicle Drivetrains S. 137-156

„… necessary- more oil flow. A good example for that hydraulic system is the pulley control in CVTs, they are …” „… rotatory feedthroughs to supply clutches with pressure or rather than oil flow to control the pistons …” „… defined by hydraulic power: Ploss = V’ x ∆p Where V’ is the flow of incompressible medium which suffers …”

doi.org/10.51202/9783181022764

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