EFFECTS OF AIR INLET SWIRL ANGLE ON PERFORMANCE OF A TWO-STROKE DIESEL ENGINE
Klein, Jordan A.
Hobson, Garth V.
Seivwright, Douglas L.
MetadataShow full item record
Two-stroke diesel engines are a reliable, robust way to provide power in a multitude of naval applications, from electrical generators to construction equipment to marine propulsion. Improvement in the performance of such a common mechanical element would provide benefits in both reliability and cost effectiveness. Increasing the degree of air-fuel mixing in the cylinder prior to combustion is one such method of performance enhancement and is the method addressed by this research. The research model engine is a Detroit Diesel 3-53 two-stroke engine that utilizes a roots blower and eighteen circumferential holes in each cylinder for air intake and four valves in the cylinder head for exhaust. After performing a baseline run of the test engine, computational fluid analysis was performed on three engine configurations using ANSYS 18.2 CFX software. The cylinder models included one with intake holes in the original configuration, one in which the holes were given a 10 degree upward angle, and one in which the holes were angled 5 degrees farther to the left and 10 degrees upward. Results suggest that a configuration with a 10 degree upward angle of the intake holes will show a higher degree of mixing and increased overall performance.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Determination of diesel engine cylinder gas torques from speed fluctuations with a high-fidelity crankshaft torsional model Swanson, William J. (Monterey, California. Naval Postgraduate School, 1998);An experimental investigation was conducted to develop a method of predicting cylinder indicated torques in a reciprocating engine by measurement of crankshaft angular velocity fluctuations. Cylinder indicated pressures ...
An analysis of single-engine rate-of-climb capabilities and thrust requirements of the S-3 and ES-3 aircraft in support of the TF34 Engine Component Improvement Program Micklewright, Alan J. (Monterey, California. Naval Postgraduate School, 1995);This thesis provides an analytical look at the performance of the TF34 engine installed on the Navy's 5-3 and ES-3 aircraft. The objective of the thesis is to provide information to assist in the effective management of ...
Development and calibration of a torsional engine model for a three-cylinder, two-stroke diesel engine Hudson, James W. (Monterey, California. Naval Postgraduate School, 1997);An experimental and analytical investigation was conducted to develop a calibrated torsional model of a three-cylinder, two-stroke diesel engine. A detroit Diesel 3-53 engine was instrumented for time resolved measurement ...