Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781731087157
Category :
Languages : en
Pages : 82
Book Description
A two dimensional, implicit finite difference method of the control volume variety, a two equation model of turbulence, and a discrete droplet model were used to study the flow field, turbulence levels, fuel penetration, vaporization, and mixing in diesel engine environments. The model was also used to study the effects of engine speed, injection angle, spray cone angle, droplet distribution, and intake swirl angle on the flow field, spray penetration and vaporization, and turbulence in motored two-stroke diesel engines. It is shown that there are optimum conditions for injection, which depend on droplet distribution, swirl, spray cone angle, and injection angle. The optimum conditions result in good spray penetration and vaporization and in good fuel mixing. The calculation presented clearly indicates that internal combustion engine models can be used to assess, at least qualitatively, the effects of injection characteristics and engine operating conditions on the flow field and on the spray penetration and vaporization in diesel engines. Nguyen, Hung Lee and Carpenter, Mark H. and Ramos, Juan I. and Schock, Harold J. and Stegeman, James D. Glenn Research Center; Langley Research Center...
Liquid Sprays and Flow Studies in the Direct-Injection Diesel Engine Under Motored Conditions
Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781731087157
Category :
Languages : en
Pages : 82
Book Description
A two dimensional, implicit finite difference method of the control volume variety, a two equation model of turbulence, and a discrete droplet model were used to study the flow field, turbulence levels, fuel penetration, vaporization, and mixing in diesel engine environments. The model was also used to study the effects of engine speed, injection angle, spray cone angle, droplet distribution, and intake swirl angle on the flow field, spray penetration and vaporization, and turbulence in motored two-stroke diesel engines. It is shown that there are optimum conditions for injection, which depend on droplet distribution, swirl, spray cone angle, and injection angle. The optimum conditions result in good spray penetration and vaporization and in good fuel mixing. The calculation presented clearly indicates that internal combustion engine models can be used to assess, at least qualitatively, the effects of injection characteristics and engine operating conditions on the flow field and on the spray penetration and vaporization in diesel engines. Nguyen, Hung Lee and Carpenter, Mark H. and Ramos, Juan I. and Schock, Harold J. and Stegeman, James D. Glenn Research Center; Langley Research Center...
Publisher:
ISBN: 9781731087157
Category :
Languages : en
Pages : 82
Book Description
A two dimensional, implicit finite difference method of the control volume variety, a two equation model of turbulence, and a discrete droplet model were used to study the flow field, turbulence levels, fuel penetration, vaporization, and mixing in diesel engine environments. The model was also used to study the effects of engine speed, injection angle, spray cone angle, droplet distribution, and intake swirl angle on the flow field, spray penetration and vaporization, and turbulence in motored two-stroke diesel engines. It is shown that there are optimum conditions for injection, which depend on droplet distribution, swirl, spray cone angle, and injection angle. The optimum conditions result in good spray penetration and vaporization and in good fuel mixing. The calculation presented clearly indicates that internal combustion engine models can be used to assess, at least qualitatively, the effects of injection characteristics and engine operating conditions on the flow field and on the spray penetration and vaporization in diesel engines. Nguyen, Hung Lee and Carpenter, Mark H. and Ramos, Juan I. and Schock, Harold J. and Stegeman, James D. Glenn Research Center; Langley Research Center...
Liquid Sprays and Flow Studies in the Direct-injection Diesel Engine Under Motored Conditions
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 84
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 84
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1460
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1460
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Spray Development in Direct Injection Diesel Engines Under Cross Flow Conditions
Author: Vijay Vasandani
Publisher:
ISBN:
Category : Diesel motor
Languages : en
Pages : 150
Book Description
Publisher:
ISBN:
Category : Diesel motor
Languages : en
Pages : 150
Book Description
Government Reports Announcements & Index
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1596
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1596
Book Description
Thermo- and Fluid Dynamic Processes in Diesel Engines 2
Author: James H. Whitelaw
Publisher: Springer Science & Business Media
ISBN: 3662105020
Category : Technology & Engineering
Languages : en
Pages : 494
Book Description
This is the second book edited with a selection of papers from the two-yearly THIESEL Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines, organised by CMT-Mvtores Termicos of the Universidad Po/itecnica de Valencia, Spain. This volume includes versions of papers selected from those presented at the THIESEL 2002 Conference th held on lOth to 13 September 2002. We hope it will be the second volume of a long series reflecting the quality of the THIESEL Conference. This year, the papers are grouped in six main thematic areas: State of the Art and Prospective, Injection Systems and Spray Formation, Combustion and Emissions, Engine Modelling, Alternative Combustion Concepts and Experimental Techniques. The actual conference covered a wider scope of topics, including Air Management and Fuels for Diesel Engines and a couple of papers included reflect this variety. However, the selection of papers published here represents the most current preoccupations of Diesel engine designers, namely how to improve the combustion process using new injection strategies and alternative concepts such as the Homogeneous Charge Combustion Ignition.
Publisher: Springer Science & Business Media
ISBN: 3662105020
Category : Technology & Engineering
Languages : en
Pages : 494
Book Description
This is the second book edited with a selection of papers from the two-yearly THIESEL Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines, organised by CMT-Mvtores Termicos of the Universidad Po/itecnica de Valencia, Spain. This volume includes versions of papers selected from those presented at the THIESEL 2002 Conference th held on lOth to 13 September 2002. We hope it will be the second volume of a long series reflecting the quality of the THIESEL Conference. This year, the papers are grouped in six main thematic areas: State of the Art and Prospective, Injection Systems and Spray Formation, Combustion and Emissions, Engine Modelling, Alternative Combustion Concepts and Experimental Techniques. The actual conference covered a wider scope of topics, including Air Management and Fuels for Diesel Engines and a couple of papers included reflect this variety. However, the selection of papers published here represents the most current preoccupations of Diesel engine designers, namely how to improve the combustion process using new injection strategies and alternative concepts such as the Homogeneous Charge Combustion Ignition.
Flow and Combustion in Reciprocating Engines
Author: C. Arcoumanis
Publisher: Springer Science & Business Media
ISBN: 354068901X
Category : Science
Languages : en
Pages : 427
Book Description
Optimization of combustion processes in automotive engines is a key factor in reducing fuel consumption. This book, written by eminent university and industry researchers, investigates and describes flow and combustion processes in diesel and gasoline engines.
Publisher: Springer Science & Business Media
ISBN: 354068901X
Category : Science
Languages : en
Pages : 427
Book Description
Optimization of combustion processes in automotive engines is a key factor in reducing fuel consumption. This book, written by eminent university and industry researchers, investigates and describes flow and combustion processes in diesel and gasoline engines.
Monthly Catalogue, United States Public Documents
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1250
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1250
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1042
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1042
Book Description
Computational Fluid Dynamics Analysis of Direct Injection Diesel Engine Sprays and Combustion
Author: T. Okazaki
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description