CFD simulation of automotive I. C. engines with advanced moving grid and multi-domain methods

Conference · Fri Jan 01 00:00:00 EST 1993

OSTI ID:5880383

Lai, Y G; Przekwas, A J; Sun, R L.T. ^[1]

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1. CFD Research Corp., Huntsville, AL (United States) Chrysler Corp., Detroit, MI (United States)

An efficient numerical method is presented with multi-domain and moving grid capabilities to best suit internal combustion engine applications. Multi-domain capability allows a user to arbitrarily cut the solution domain into many topologically simpler domains. Consequently, simultaneous coupling among components becomes natural and the task of grid generation becomes easier. The moving grid capability allows the computational grid to move and conform to the piston motion. As a result, the grid always fits the flow boundaries and no special remapping or interpolation is needed. The method has been implemented to solve 2D and 3D flows in a body-fitted coordinate system. Air ingestion and scavenging flow problems in a generic four-stroke engine and a two-stroke engine are simulated to demonstrate the proposed approach. 18 refs.

• OSTI ID: 5880383
• Report Number(s): AIAA-Paper-93-2953; CONF-930714-
• Resource Relation: Conference: 11. international computational fluid dynamics conference, 28th thermophysics conference and 24th fluid dynamics, plasma dynamics and laser conference, Orlando, FL (United States), 5-7 Jul 1993
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
42 ENGINEERING
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
FLUID FLOW
MESH GENERATION
THREE-DIMENSIONAL CALCULATIONS
INTERNAL COMBUSTION ENGINES
COMPUTERIZED SIMULATION
ENGINES
HEAT ENGINES
SIMULATION
330100* - Internal Combustion Engines
420400 - Engineering- Heat Transfer & Fluid Flow
990200 - Mathematics & Computers