Analysing in-nozzle flows using partial nozzle models

• Autorzy: Volmajer, M. , Kegl, B.
• Języki publikacji: EN

Abstrakty

EN

The geometry of the diesel fuel injection nozzle and fuel flow characteristics in the nozzle significantly affects the processes of fuel atomisation, combustion and formation of pollutant emissions in a diesel engine. To improve the processes of fuel injection and spray formation CFD packages are commonly used. Since CPU times are often high, partial models are used for analysis. The results of the analysis by using partial models are model dependent, so the differences between the results using different models can occur. In this paper CFD analysis for different partial models of a 4-hole nozzle were made. The objective of the research was to find the proper model to be used for fast analysis of existing nozzle geometry. Several partial models of the nozzle were made. The results were compared with the results of measurements at steady state conditions.

• Czasopismo: Journal of KONES
• Rocznik: 2003
• Tom: Vol. 10, No. 1-2
• Strony: 289--296
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Volmajer, M.

• University of Maribor, Faculty of mechanical engineering, Smetanova 17, SI-2000 Maribor, Slovenia, tel. [phone], fax [phone] ,

autor

Kegl, B.

• University of Maribor, Faculty of mechanical engineering, Smetanova 17, SI-2000 Maribor, Slovenia, tel. [phone], fax [phone] ,

Bibliografia

• [1] T. Yoda, T. Tsuda, Influence of Injection Nozzle Improvement on DI Diesel Engine, SAE paper 970356.
• [2] Y.Oishi et.al. A computational Study into the Effect of the Injection Nozzle Inclination Angle on the Flow Characteristics in Nozzle Holes, SAE paper 920580.
• [3] M.Volmajer, B.Kegl, Experimental and numerical analysis of fuel flow in diesel engine injection nozzle, J. of. KONES Internal combustion engines, vol. 8, no. 1/2, p. 9-16.
• [4] Accrumanis C. et al., Investigation of Cavitation in a Vertical Multi-Hole Injector, SP-1415, p.181-198, SAE, Warrendale, 1999.
• [5] C. Accrumanis et al., Analysis of the Flow in the Nozzle of a Vertical Multi Hole Diesel Engine Injector, SAE paper 980811.
• [6] M.Kato et al., Flow Analysis in Nozzle Hole in Consideration of Cavitation, SAE 970052.
• [7] K.Melcher, I.Komaroff, Experimentelle Utersuchung der Stroemung durch Dieseleinspritzduesen in stationaer betriebenen Grossmodel, Bosch Techn. Berichte 5(1976)4.
• [8] Y.Oishi et al., A Computational Study into the Effects of the Injection Nozzle Inclination Angle on the Flow Characteristics in the Nozzle Holes, SAE paper 920580.
• [9] K.Melcher, J.Chomiak, Experimentelle Untersuchung der Stroemung durch Dieseleinspritzduesen in stationaer betriebenen Grossmodel, Bosch Techn. Berichte 5(1976)4.
• [10] ISO-4113:1988, Road Vehicles- Calibration Fluid Diesel Injection Equipment.
• [11] H.Hardenberg, Die Nadelhubabhaengigkeit der Durchflussbeiwerte von Lochduessen fuer Direkteinspritzdieselmotoren, MTZ 46(1985) 4, p. 143-146.