Abstract
A three-dimensional flow in the intake process of a reciprocal engine is calculated numerically under such complicated boundary conditions as moving valves and arbitary intake-port and combustion chamber configurations. A finite difference method using a third-order upwind scheme for convective terms is applied to solve incompressible Navier-Stokes equations. This model enables us to simulate the occurence of small vortices near the valve and valve seat or caused by curvature of the intake port, as well as the influence on flow in a cylinder of the vortices. The difference in flow pattern between single and double intake valves is compared as an application of this model. LDV measurements at 126 points inside an engine cylinder at an engine speed of 1 400 rpm are also performed in this study to evaluate the calculation results. It is clarified that the calculation flow field agrees fairly well with the measured results.
| Original language | English |
|---|---|
| Pages (from-to) | 1868-1875 |
| Number of pages | 8 |
| Journal | Transactions of the Japan Society of Mechanical Engineers Series B |
| Volume | 55 |
| Issue number | 515 |
| DOIs | |
| Publication status | Published - 1989 |
| Externally published | Yes |
Keywords
- Couble Intake Valve
- Intake Process
- Internal Combustion Engine
- Numerical Analysis
- Three-Dimensional
- Unsteady Flow
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering