Simulating calculation method for in-cylinder fluid

• Main Authors: WEI PIYONG, MENG YUNXIA, LIU XIAO
• Format: Patent
• Language: Chinese; English
• Published: 19.12.2017
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses a simulating calculation method for in-cylinder fluid. The method comprises the following steps that: in three-dimensional simulation software, modeling a sealed curved surface which surrounds each component of the in-cylinder fluid; carrying out mesh generation on an established model, and forming a dynamic grid model according to a valve movement parameter; and loading a periodic transient boundary condition for the dynamic mesh model, and calculating the transient tumble ratio and the concentration distribution of the in-cylinder fluid according to a built-in algorithm. By use of the method, after the sealed curved surface which surrounds each component of the in-cylinder fluid is modeled, the mesh generation is carried out to form the mesh model, the dynamic mesh model used for movement analysis is formed according to the valve movement parameter, the in-cylinder fluid moves under the propelling of the periodic transient boundary condition in the dynamic mesh model, and the movemen