Abstract
1-D numerical simulation is conducted for compression stroke of air inside a flat piston-cylinder pattern using Smoothed Particle Hydrodynamics (SPH) and explicit time integration methods. Flow and fluid properties are calculated and represented during the whole stroke time and at different piston positions inside the cylinder. Investigations about the value of the smoothing length (h) of minimum error and optimizing the ghost particles’ position and interaction boundary conditions have been undergone. The simulation results show consistent accuracy with isentropic data in reasonable time consumption.
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Nomenclature
Nomenclature
- απ :
-
Shear viscosity coefficient
- βπ :
-
Bulk viscosity coefficient
- ρ:
-
Density, kg/m3
- φ:
-
Non-singularity coefficient
- π:
-
Artificial viscosity term
- a:
-
Piston acceleration, m/s2
- a1 :
-
Dimension coefficient of smoothing kernel function
- C:
-
Specific heat, kJ/kg K
- D:
-
Engine Diameter, m
- L:
-
Engine stroke length, m
- P:
-
Pressure, Pa
- q:
-
Heat rate, W
- RF:
-
Repulsive force per particle mass, m/s2
- T:
-
Temperature, K
- u:
-
Velocity, m/s
- X:
-
Position
- i:
-
Initial, interested particle
- f:
-
Final
- j:
-
Neighbor particle
- opt.:
-
Optimum
- p:
-
Piston
- ″ :
-
Flux
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El-Gammal, T., Khalil, E.E., Haridy, H., Abo-Serie, E. (2014). Numerical Simulation of 1-D Compression Stroke Using Smoothed Particle Hydrodynamics. In: Dincer, I., Midilli, A., Kucuk, H. (eds) Progress in Exergy, Energy, and the Environment. Springer, Cham. https://doi.org/10.1007/978-3-319-04681-5_61
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DOI: https://doi.org/10.1007/978-3-319-04681-5_61
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