In the study, a computer analysis has been developed for predicting the pipe pressure of the in take and exhaust manifold in a single cylinder engine. To get the boundary conditions for a numerical analysis, one dimensional and unsteady gas dynamic ca...
In the study, a computer analysis has been developed for predicting the pipe pressure of the in take and exhaust manifold in a single cylinder engine. To get the boundary conditions for a numerical analysis, one dimensional and unsteady gas dynamic calculation is performed by using the MOC(Method of Characterisitic). The main numerical parameters are the variation of the exhaust pipe diameters to calculate the pulsating flow when the intake and exhaust valves are woking. As the results of numerical nanlysis, the shapes and distributions of the exhaust pipe pressures were influenced strongly on the cylimder pressure, As the exhaust pipe diamrter is decreased, the anplitude of exhaust pressure large and the eylinder pressure was showed low in the region of intake valve opening time.