scholarly journals Numerical simulation of internal combustion engine flows development and testing of turbulence and swirling flow capability

1980 ◽  
Author(s):  
R. Traci ◽  
F. Su ◽  
S. Murty ◽  
A. Boni
Keyword(s):  
Numerical Simulation ◽  
Internal Combustion Engine ◽  
Swirling Flow ◽  
Combustion Engine ◽  
Internal Combustion

Study of Energy-Saving Potential of Electronically Controlled Turbocharger for Internal Combustion Engine Exhaust Gas Energy Recovery

2016 ◽  
Vol 138 (11) ◽  
Author(s):  
Qijun Tang ◽  
Jianqin Fu ◽  
Jingping Liu ◽  
Feng Zhou ◽  
Xiongbo Duan
Keyword(s):  
Numerical Simulation ◽  
Internal Combustion Engine ◽  
Energy Recovery ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Utilization Efficiency ◽  
Exhaust Gas ◽  
Engine Exhaust ◽  
Valve Opening ◽  
Working Processes

To promote the energy utilization efficiency of internal combustion engine, the approach of electronically controlled turbocharger (ECT) for IC engine exhaust gas energy recovery was investigated by the method of test coupling with numerical simulation. First, the tests for turbocharged gasoline engine and high-speed motor were conducted so as to provide experimental data for numerical simulation. Then, the simulation model of ECT engine was built and calibrated, and the working processes of ECT engine were simulated. The results show that the recovered exhaust gas energy by ECT increases with the decrease of by-pass valve opening due to the rising of exhaust gas mass flow rate, but the pumping loss also ascends; limited by the original engine turbocharger map, the engine working points are beyond turbine map when the by-pass valve opening increases to a certain degree. To further improve the energy recovery potential of ECT, a larger turbine was rematched, and the working processes of ECT engine under the whole operating conditions were resimulated. The results indicate that engine exhaust gas energy cannot be recovered by ECT in low-load and low-speed area due to the low exhaust gas pressure. In the effective working area, as the load and speed ascend, both the recovery efficiency of ECT and the utilization efficiency of exhaust gas energy increase, and their maximum values reach 8.4% and 18.4%, respectively. All those demonstrate that ECT can effectively recover engine exhaust gas energy.

scholarly journals Numerical Simulation of Unstable Flow in Cooling Pump of Internal Combustion Engine

2020 ◽  
Vol 461 ◽  
pp. 012039
Author(s):  
Chunhao Shen ◽  
Haoyang Zhang ◽  
Qiaorui Si ◽  
Shuijing Xia ◽  
Kaile Huang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Unstable Flow

scholarly journals CFD numerical simulation of the indirect cooling system of an internal combustion engine

2017 ◽  
Vol 170 (3) ◽  
pp. 8-18
Author(s):  
Michał BIAŁY ◽  
Konrad PIETRYKOWSKI ◽  
Tytus TULWIN ◽  
Paweł MAGRYTA
Keyword(s):  
Numerical Simulation ◽  
Internal Combustion Engine ◽  
Cooling System ◽  
Initial Conditions ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Velocity Fields ◽  
Simulation Studies ◽  
Ansys Fluent ◽  
Fluent Software

The paper presents an analysis of the fluid flow in the cooling system of an internal combustion engine with oposite pistons.The purpose of the work was to optimize the flow of fluid through the channels located in the engine block. Simulation studies and subsequent iterations were performed using Ansys Fluent software. Two-equation k-epsilon turbulence model was used in the simulation model. Boundary and initial conditions were taken from previously made simulations conducted in AVL Boost software. The average wall temperature of the cylinder and the temperature of the outer walls of the cylinder were assumed for simulations. The results of the analyzes were graphically illustrated by the speed streamline distribution of velocity fields and temperature.

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