Description AC2-10: Difference between revisions
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=Internal combustion engine flows for motored operation= | =Internal combustion engine flows for motored operation= | ||
'''Application Challenge AC2-10''' © copyright ERCOFTAC {{CURRENTYEAR}} | '''Application Challenge AC2-10''' © copyright ERCOFTAC {{CURRENTYEAR}} | ||
==Abbreviations== | ==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 & hight 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\\ | |||
==Introduction== | ==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 | 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 13:31, 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 & hight 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\\
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).
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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