Description AC2-10: Difference between revisions
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The TU Darmstadt engine is an optically accessible single cylinder spark-ignition direct injection engine. It is embedded in an especially designed test bench to provide well characterized boundary conditions and reproducible engine operation. A reproducible engine operation is needed to characterize the variety of in-cylinder processes and is a prerequisite for any comparison of experiments and simulations. The in-cylinder processes are characterized using advanced laser-diagnostics to provide measurements at high spatial and temporal resolutions. The aim of this effort is, to build up a comprehensive data set | The TU Darmstadt engine is an optically accessible single cylinder spark-ignition direct injection engine. It is embedded in an especially designed test bench to provide well characterized boundary conditions and reproducible engine operation. A reproducible engine operation is needed to characterize the variety of in-cylinder processes and is a prerequisite for any comparison of experiments and simulations. The in-cylinder processes are characterized using advanced laser-diagnostics to provide measurements at high spatial and temporal resolutions. The aim of this effort is, to build up a comprehensive data set | ||
Revision as of 13:57, 9 October 2018
Internal combustion engine flows for motored operation
Application Challenge AC2-10 © copyright ERCOFTAC 2024
Abbreviations
{
|ALE||Arbitrary Lagrangian-Eulerian
|-
|aTDC||after top dead center
|-
|bTDC||before top dead center
|-
|BDC||bottom dead center
|-
|CA||crank angle
|-
|CAD||crank angle degreeCCD charge-coupled device
|-
|CCV||cycle-to-cycle variation
|-
|CDS||central differencing scheme
|-
|CFD||computational fluid dynamics
|-
|CFL||Courant-Friedrichs-Lewy
|-
|ENO||Essentially Non-Oscillatory
|-
|ERG||exhaust-gas-recirculation
|-
|EVC||exhaust valve closing
|-
|EVO||exhaust valve opening
|-
|HS-PIV||high speed particle image velocimetry
|-
|IC||internal combustion
|-
|IVC||intake valve closing
|-
|IVO||intake valve opening
|-
|LES||large eddy simulation
|-
|MRV||magnetic resonance velocimetry
|-
|PIV||particle image velocimetry
|-
|POV||field-of-view
|-
|QSOU||quasi-second-order upwind
|-
|QUICK||Quadratic Upwind Interpolation for Convective Kinematics
|-
|RANS||Reynolds-averaged Navier-Stokes
|-
|RMS||root mean square
|-
|RPM||rounds per minute
|-
|SAS||scale-adaptive simulation
|-
|SRS||scale-resolving simulation
|-
|SST||shear stress transport
|-
|TDC||top dead center
|-
|TUBF||Technische Universität Bergakademie Freiberg
|-
|TUD||Technische Universität Darmstadt
|-
|TVD||total variation diminishing
|-
|UDE||Universität Duisburg-Essen
|-
|URANS||unsteady Reynolds-averaged Navier-Stokes
|-
|WG||wall-guided
|}
Description
Introduction
The TU Darmstadt engine is an optically accessible single cylinder spark-ignition direct injection engine. It is embedded in an especially designed test bench to provide well characterized boundary conditions and reproducible engine operation. A reproducible engine operation is needed to characterize the variety of in-cylinder processes and is a prerequisite for any comparison of experiments and simulations. The in-cylinder processes are characterized using advanced laser-diagnostics to provide measurements at high spatial and temporal resolutions. The aim of this effort is, to build up a comprehensive data set
- to give insights into the underlying physics for a better understanding of the relevant in-cylinder processes and
- for the validation of CFD simulations especially for large eddy simulations (LES).
blah
Contributed by: Carl Philip Ding,Rene Honza, Elias Baum, Andreas Dreizler — Fachgebiet Reaktive Strömungen und Messtechnik (RSM),Technische Universität Darmstadt, Germany
Contributed by: Brian Peterson — School of Engineering, University of Edinburgh, Scotland UK
Contributed by: Chao He , Wibke Leudesdorff, Guido Kuenne, Benjamin Böhm, Amsini Sadiki, Johannes Janicka — Fachgebiet Energie und Kraftwerkstechnik (EKT), Technische Universität Darmstadt, Germany
Contributed by: Peter Janas, Andreas Kempf — Institut für Verbrennung und Gasdynamik (IVG), Lehrstuhl für Fluiddynamik, Universität Duisburg-Essen, Germany
Contributed by: Stefan Buhl, Christian Hasse — Fachgebiet Simulation reaktiver Thermo-Fluid Systeme (STFS), Technische Universität Darmstadt, Germany; former: Professur Numerische Thermofluiddynamik (NTFD), Technische Universität Bergakademie Freiberg, Germany
© copyright ERCOFTAC 2018