Inviscid solutions of the flowfield in an internal combustion engine

Journal Article · Wed Dec 01 04:00:00 EST 1976 · AIAA (Am. Inst. Aeronaut. Astronaut.) J.; (United States)

DOI:https://doi.org/10.2514/3.61508· OSTI ID:5072664

Diwakar, R; Anderson, Jr, J D; Griffin, M D; Jones, E

The complete Navier--Stokes equations were previously applied to the solution of the viscous flowfield inside an internal combustion engine for a complete 4-stroke cycle-intake, compression, power, and exhaust. The major problem with such solutions is their restriction to low Reynolds numbers in order to remain within practical computer times. An investigation is presented of the inviscid flowfield in an IC engine. Some advantages of an inviscid solution are: (1) full-scale engines running under atmospheric conditions can be readily treated in reasonably practical computer times; (2) the true flowfield inside real IC engines might be reasonably modeled via a large inviscid core plus a viscous boundary layer at the walls, as conventionally done in aerodynamics; and (3) an inviscid solution might be the most practical vehicle for initial studies of the interaction between the flowfield and the combustion processes.

• Research Organization: Univ. of Maryland, College Park
• OSTI ID: 5072664
• Journal Information: AIAA (Am. Inst. Aeronaut. Astronaut.) J.; (United States), Journal Name: AIAA (Am. Inst. Aeronaut. Astronaut.) J.; (United States) Vol. 14:12; ISSN AIAJA
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
CYLINDERS
DIFFERENTIAL EQUATIONS
ENGINES
EQUATIONS
FLOW MODELS
FLUID FLOW
GAS FLOW
INTERNAL COMBUSTION ENGINES
MATHEMATICAL MODELS
NAVIER-STOKES EQUATION
PISTONS
TWO-DIMENSIONAL CALCULATIONS
VELOCITY