A Numerical Method for the Prediction of Exhaust Noise in Internal Combustion Engine Exhaust Systems

1993 ◽  
Author(s):  
M M. Ghafouri ◽  
G. Ricci
Keyword(s):  
Internal Combustion Engine ◽  
Numerical Method ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Engine Exhaust ◽  
Exhaust Noise ◽  
Exhaust Systems

Experimental study of rasping noise in internal combustion engine exhaust systems

1999 ◽  
Vol 105 (2) ◽  
pp. 1285-1285
Author(s):  
Mondher Ayadi ◽  
Slaheddine Frikha ◽  
Pierre Yves Hennion ◽  
Jean Michel Coulon
Keyword(s):  
Experimental Study ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Engine Exhaust ◽  
Exhaust Systems

Temperature Field Numerical Simulation on the Exhaust Silencer with Adiabatic Envelope

2011 ◽  
Vol 66-68 ◽  
pp. 1823-1827
Author(s):  
Yun Liang Yu ◽  
Zhong Yi Wang ◽  
Shu Guang Chu ◽  
Jia Han
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Internal Combustion Engine ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Interaction Model ◽  
Internal Combustion ◽  
Engine Exhaust ◽  
The Status ◽  
Exhaust Noise

Exhaust noise is the major noise source of the internal combustion engines, and the exhaust silencer is the device to reduce the exhaust noise. Exhaust gas of the internal combustion engine is high-temperature, therefore in the study of internal combustion engine exhaust silencer, the surface temperature’s influence on the surrounding adjacent facilities should be controlled to a certain range and the status of the temperature field depends on the material and structure of the adiabatic envelope. The model of exhaust silencers discussed in this article is fluid-solid interaction model and this paper uses the CFD software for numerical simulation of the model. Using appropriate boundary conditions, calculation models and silencer model with heat transfer surface, this paper uses N-S equation and standard turbulent model to simulate the flow field and wall temperature field inside the silencer, and does post-processing analysis of the results.

Study on Internal Combustion Engine Exhaust Noise by Orthogonal Test

2013 ◽  
Vol 805-806 ◽  
pp. 1861-1864
Author(s):  
Jian Kun Xiao ◽  
Dai Fen Chen ◽  
Zhao Wang Xia
Keyword(s):  
Neural Network ◽  
Internal Combustion Engine ◽  
Diesel Exhaust ◽  
Combustion Engine ◽  
Influence Factors ◽  
Internal Combustion ◽  
Orthogonal Test ◽  
Noise Prediction ◽  
Engine Exhaust ◽  
Exhaust Noise

On type 380 diesel engine, orthogonal experimental studying on exhaust noise was carried out. This is to study the influence factors and degree on exhaust noise of internal combustion engine, and determine the main and secondary influence factors on diesel exhaust noise and their interaction. A noise prediction equations was established by studying the test samples based on genetic algorithm neural network. The results is very precise by test.

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