VDI Verlag eLibrary

Partitioned solution strategies for electro-thermo-mechanical problems applied to the field-assisted sintering technology

Patrick Erbts

Series: Mechanik/Bruchmechanik

Volume 345 2016

Results in this title

„… numerical examples. Some improve- 6 1. Introduction Radiation Field Mechanical Field Thermal Field Electric …” „… nearly vacuum conditions [176]. Additionally, thermal radiation is of particular interest as the FAST …” „… process involves high temperatures at the tool surfaces. As thermal radiation is – simply spoken …”

Conclusions and outlook S. 171-173

„… of thermal radiation becomes an important issue. That is why the radiative heat transfer is treated …” „… as an additional physical field in this thesis. A radiation solver is coupled to the thermal field …” „… radiation transfers thermal energy in vacuum, the coupling is also formulated for the absence of a …”

Numerical examples S. 145-170

„… problemwith finite deformations is studied, where thermal radiation is approximated as a boundary condition in …” „… temperature boundary conditions are given as follows: Thermal radiation is approximated as q̄ = εσsb(Θ4−Θ4 …” „… . Multi-field problem with thermal radiation 151 applied to the thermal field. It seems that the electric field …”

Titelei/Inhaltsverzeichnis S. I-XVI

„… – Numerical thermal radiation – Convergence acceleration – Fluid-structure interaction – Coupled problems …” „… . . . . . . . . . . . . . . . 27 2.2.4 Summary of the coupled initial boundary value problem . . 29 2.3 Thermal radiation …” „… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 2.3.1 Basics of thermal radiation . . . . . . . . . . . . . . . . . . . 32 2.3.2 Radiation in …”

Numerical methods S. 45-78

„… methods to perform a numerical thermal radiation analysis are introduced. It is assumed that the …” „… transfer by thermal radiation that is to be studied, the other 76 3. Numerical methods transfer modes …” „… numerical solution procedures for the governing equations of the mechanical, thermal, electrical and …”

Solution of coupled problems S. 79-144

„… can appear, for instance, in fluid-structure or thermal-radiation interaction – which are typical …” „… ], chemical-thermo-mechanics [181], electro-(magneto)-mechanics [160, 113, 40] or thermal-fluid-structure interaction [12, 137 …” „… Newton-Raphson procedure might become extremely large and also unsymmetrical. For some cases, the numerical …”

Governing equations S. 8-44

„… , thermal radiation can be the dominating mode of heat transfer in many industrial applications …” „… . Unfortunately, the existence of thermal radiation may increase the complexity of a simulation significantly …” „… information about thermal radiation. The gap conductance describes the heat transfer between two surfaces and …”

Bibliography S. 186-204

„… . Heat transmission, 3, 1954. [86] J.R. Howell, R. Siegel, and P. Menguc. Thermal Radiation Heat Transfer …” „… / simulia/portfolio/abaqus/overview/, 2012. [2] A. Aitken. On Bernoulli’s numerical solution of algebraic equations. Proceedings of …” „… Numerical Methods in Engineering, 35:737–766, 1992. [4] F. Armero and J.C. Simo. A priori stability …”

doi.org/10.51202/9783186345189

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International Conference on Gears 2023

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2422 2023

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W. Ramdane, C. Changenet, S. S. Ouali, C. Chevrel-Fraux, P. Casanova Thermal model of a planetary gear set using an isothermal approach S. 451-466

„… losses, thermal heat flows are calculated by summing the contribution of convection and radiation between …” „… the planetary gear set and its environment: b !" " &#!"U !" !b!"U !" Thermal radiation The heat …” „… Thermal model of a planetary gear set using an isothermal approach Wassim Ramdane, Université de …”

C. M. C. G. Fernandes, J. M. A. Pinto, D. E. P. Gonçalves, A. R. Silva Reduction of root and flank temperature using a hybrid polymer-metal rack S. 1547-1562

„… the used setup, it is possible to identify the effect of the thermal source radiation on the rack …” „… tooth temperature field in the root region. Fig. 4: Thermal image taken during a test T2B Radiation …” „… thermal model, a mechanical model and an uncoupled thermo-mechanical model. The numerical model …”

doi.org/10.51202/9783181024225

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AgEng LAND.TECHNIK 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2406 2022

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S. H. F. Al-Rikabi, E. Santolini, M. Bovo, A. Barbaresi, D. Torreggiani, P. Tassinari, B. Pulvirenti Definition of a Porous Media Model Simulating the Presence of a Small Canopy Crops in a Greenhouse – CFD simulations and comparison with experimental tests S. 639-648

„… numerical solar radiation models and 3D simulations in a multi-span greenhouse with an active crop. Crop …” „… aiming to define a porous media model simulating the crop presence and to evaluate the thermal energy …” „… outcomes of the numerical simulations were then compared with the experimental one. The results show that …”

D. Tyris, P. Panagakis, D. Manolakos, A. Gkountas, P. Bakalis A dynamic heat pump model for precise environment control of a broiler house in Northern Greece S. 485-492

„… . Here, a detailed numerical tool developed in Simulink [8] is presented, simulating the thermal loads of …” „… welfare conditions for the broilers housed. The most widespread systems used to achieve thermal comfort …” „… detailed numerical tool developed in Simulink environment, to simulate the dynamic operation of three heat …”

W. Faes, S. Lecompte, J. Maselyne Cost-effective implementation of renewable energy sources in livestock barns S. 245-252

„… radiation and wind, storage is possible with batteries (electrical storage) or hot water tanks (thermal …” „… and Food), Belgium Abstract Livestock barns have a high electrical and thermal energy demand …” „… not straightforward. Therefore a numerical model was developed where the use of these technologies can …”

J. Schemminger, Sharvari Raut, B. Sturm, Albrecht Daniel, Thijs Defraeye A digital shadow to study the convective drying of carrot slices S. 155-164

„… ) ??ℎ ⋅ ?? ( 9 ) with the Nusselt number ??⋅ using the thermal conductivity of air ? and a …” „… characteristic length ? ? .The Lewis number ?? correlates the thickness of the thermal boundary layer and the …” „… concentration boundary layer with the thermal diffusivity ? 2.16 ⋅ 10 [17] and the binary diffusion …”

doi.org/10.51202/9783181024065

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Näherungsformeln für Spill Plumes in Atrien variabler Größe.

Hendrik C. Belaschk

Series: Berichte des Instituts für Bauphysik der Leibniz Universität Hannover

Volume 5 2012

Results in this title

Literaturverzeichnis S. 120-126

„… [59] K. G. T. Hollands: Thermal Radiation Fundamentals. Begell House Inc., New York, 2004 [60] M. F …” „… : Thermal Radiation Heat Transfer. Taylor & Francis, New York, 4. Edition, 2002 [62] G. D. Raithby, E. H …” „… , pp. 43–44, 2003 [4] R. Harrison: Smoke Control in Atrium Buildings: A Study of Thermal Spill Plume …”

Teil A / Numerische Brand- und Rauchsimulation unter Verwendung von GPU-Prozessortechnologie S. 34-87

„… ) • Eindimensionaler Wärmetransport in Feststoff en Wärmestrahlung (thermal radiation) • Strahlungstransportmodell …” „… • Mehrere Druckzonen • Bakrokline Druckkorrektur • Direct Numerical Simulation (DNS) • Dynamische …”

doi.org/10.51202/9783816786993

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International Conference on Gears 2017

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2294 2017

Results in this title

B. Bauer, R. Hambrecht, A. Kube Thermal analysis and optimization of gearboxes by simulation S. 917-926

„… cover by using a numerical approach. Thermal balance as dimensioning criterion Converting torque …” „… thermal capacity VDI-Berichte Nr. 2294, 2017 919 Numerical approach to calculate gearbox temperatures …” „… Thermal analysis and optimization of gearboxes by simulation Dr. Björn Bauer, Dr. Ralf …”

doi.org/10.51202/9783181022948

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Nutzfahrzeuge 2017 – Commercial Vehicles 2017

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2298 2017

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C. Brinkkötter, R. Baumgart, S. Moldenhauer, J. Aurich, O. Predelli, A. Meyer Energy Efficient Standstill Air Conditioning for Trucks S. 125-142

„… based on the approach presented in [1]. For the mathematical simulation of the thermal processes in the …” „… mechanisms: • convection • long wave heat radiation • heat conduction Generally, all components of the …” „… cabin can exchange heat by radiation. However, a part of emitted heat radiation may not reach the …”

doi.org/10.51202/9783181022986

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SIMVEC 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2407 2022

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J. Lee, S. Rehfeldt, H. Klein, D. Bäder, A. Eisenträger, J. Kuhnert, I. Michel Two-phase water evaporation MESHFREE CFD method for wet automotive component dry-out time prediction S. 33-44

„… , is the gradient, and is the divergence [7]. To derive a useful numerical scheme, the stress tensor …” „… the identity matrix [7]. VDI-Berichte Nr. 2407, 202234 Numerical differential operators In order to …” „… the simplicity ci is written instead of usign ci* [8]: (8) Mass transfer rate and thermal balance …”

doi.org/10.51202/9783181024072

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Improvement of Cu ( In,Ga) (S,Se)2 thin film Solar Cells with the help of Gallium and Sulfur Gradients

Björn Jakob Müller

Series: Elektronik/Mikro- und Nanotechnik

Volume 396 2018

Results in this title

Fundamentals of chalcopyrite solar cell devices S. 4-31

„… as well as a semi-numerical approach is used to simulate the performance parameters for different …” „… each other in thermal equilibrium [24,41,42]. The drift current at the contact area of the p and n …” „… body radiator. The emission properties of the solar cell are described by the black body radiation and …”

Titelei/Inhaltsverzeichnis S. I-XIII

„… : Photo current density, produced by black body radiation JCPDS: Joint Committee on Powder Diffraction …” „… recombination rate Rp: Parallel resistance Rs: Series resistance RTP: Rapid thermal processing S/metal …” „… charge carrier collection. With the help of numerical SCAPS simulations the optimized parameters of back …”

Results and discussion S. 51-163

„… the solar cell device parameters. The experimental results are compared with numerical modeling …” „… theoretical models or numerical simulations. The SQ model provides the first approach to the limit of the …” „… interfaces and the glass substrates behave under different thermal treatments. The temperature next to and …”

doi.org/10.51202/9783186396099

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Ganzheitliche simulationsbasierte Bewertung der Akustik von automobilen Antrieben

Fabian Duvigneau

Series: Rechnerunterstützte Verfahren

Volume 467 2017

Results in this title

Literaturverzeichnis S. 120-136

„… encapsulations - a numerical, experimental and psychoacoustic study,” Journal of Applied Acoustics, vol. 102, pp …” „… ] F. J. Fahy and P. Gardonio, Sound and Structural Vibration: Radiation, Transmission and Response …” „… , “Active control of sound transmission/radiation from elastic plates by vibration inputs. i - analysis …”

doi.org/10.51202/9783186467201

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SIMVEC Simulation und Erprobung in der Fahrzeugentwicklung 2016

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2279 2016

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C. Brodbeck, P. Bayrasy Co-Simulationsmethoden für das thermische Management von Gesamtfahrzeugen bei Betrachtung dynamischer Fahrzyklen S. 31-44

„… . Abstract In addition to well-established steady state thermal simulations for full vehicles the …” „… transient coupled solutions. As simulation software STAR-CCM+ (fluid flow), TAITherm (radiation and solid …” „… ., Pere, A., Frank, T., Christel, F. et al., „A Numerical Investigation of Dampening Dynamic Profiles for …”

S. Yigit, M. Streitenberger, K.-M. Hahn, S. D. Lago Places, J. Wuchatsch An enhanced CFD approach to simulate brake fluid temperature rise during mountain descent and soaking phase S. 605-624

„… . Literaturverzeichnis [1] Kim, M., Ahn, B., Lee, J., and Jung, Y.: Numerical Investigation of Thermal Behavior in …” „… transient thermal problem. We employ a fully implicit second order solution procedure including convection …” „… , conduction and radiation. The strong coupling (monolithic) allows to simulate brake fluid temperature rise …”

M. Westerloh, J. Köhler Einfluss der regionalen Solarstrahlung auf den Pkw S. 3-14

„… must be considered. In this test scenario, the solar radiation is directed vertically from above on …” „… in the thermal vehicle simulation. The impact of the regional orientation should be investigated on …” „… .; Kuhn B.; Sonnekalb M. J.; Behr, H.: Numerical calculation of the distribution of temperature and heat …”

doi.org/10.51202/9783181022795

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28. Deutscher Flammentag

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2302 2017

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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

„… . In particular, the numerical results are compared to the measured carbon conversions under different …” „… challenging. For these reasons, the numerical models for coal gasification need to be calibrated and …” „… numerical simulations include pyrolysis, char formation, char conversion, and gas phase oxidation. First …”

doi.org/10.51202/9783181023020

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Plastics in Automotive Engineering PIAE EUROPE

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2343 2019

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M. Haverkamp Multisensory appearance of traditional and innovative surfaces – Optimal design for all senses S. 471-490

„… by thermal conduction, but not by the radiation of thermal energy. The Ford Research Center Aachen …” „… of a surface can be measured and expressed in numerical values: for example, Ra, Rq, Rz along a line …” „… and to sound radiation via other components. The excitation of touch sounds takes place via …”

doi.org/10.51202/9783181023433

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LAND.TECHNIK 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2395 2022

Results in this title

C. J. Lee, S. Schatzle, S. A. Lang Evaluation of perception sensors for safety of highly automated machine operations S. 163-170

„… in varying practical situations. Environmental parameters (e.g. sun radiation, precipitation …” „… (+++) Perception sensors RGB camera VIS-NIR camera Thermal camera Stereo camera CW-ToF camera 3D LiDAR …” „… + + + + + + + + + + + + ‐ + + + Numerical comparison The next evaluation step is shown in Table 2 using the example of a stereo camera for …”

doi.org/10.51202/9783181023952

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Messunsicherheit 2019

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2365 2019

Results in this title

S. Vasilyan, N. Rogge, T. Fröhlich Metrology in direct photon momentum measurement S. 193-206

„… 3. Conclusion In this study, we presented photon-momentum (radiation-pressure) -induced precision …” „… of the radiation pressure of a laser field as an effect of the momentum transfer of the absorbed and …” „… version of SI unit system. However, knowing that the mass is already redefined by the numerical value …”

doi.org/10.51202/9783181023655

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Inkjet-Druckprozess für die Fertigung von Strukturen zur photoaktivierten Wasserspaltung

Danny Lehmann

Series: Elektronik/Mikro- und Nanotechnik

Volume 394 2017

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Literaturverzeichnis S. 140-158

„… la radiation chimique de la lumiere solaire au moyen des courants electriques. Comptes Rendus de L …” „… Pearson, G. L. (1954). A New Silicon p-n-Junction Photocell for Converting Solar Radiation into Electrical …” „… prepared via electrodeposition and thermal oxidation of iron. Thin Solid Films, 520:1034–1040. [Endo et al …”

doi.org/10.51202/9783186394095

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