نتایج جستجو برای: flame forming process

تعداد نتایج: 1420901  

2003
W I L L I A M L. ROBERTS JAMES F. DRISCOLL

A single toroidal, laminar vortex in created and a laminar premixed flame is propagated over the vortex in order to study the fundamental interaction process and to compare results with the numerical solutions of the Navier-Stokes equations obtained by Poinsot, Veynante, and Candel. Results quantify the degree of flame rollup, the flame perimeter increase due to wrinkling, the minimum vortex si...

2015
Zakir Hussain Diwakar Agarwal

This paper presents a review over the detection of edges by taking a flame as an input image. The identification of flame edge is the process of locating a boundary between those areas where a thermochemical reactions take place. The determination of flame edges is necessary for early fire detection, fire analysis and the estimation of various flame parameters. Edge detection is an important pr...

Journal: :Optics letters 1995
D F Marran J H Frank M B Long S H Stårner R W Bilger

A novel intracavity laser diagnostic has been developed to perform quantitative two-dimensional imaging of major species and temperature by using spontaneous Raman scattering and Rayleigh scattering in a turbulent flame. A flash-lamp-pumped dye laser cavity is modified to include sheet-forming optics and 100% reflecting end mirrors. In a comparison of this system with a laser configuration with...

H. Moslemi Naeini, M. Maerefat and M. Soltanpour,

In hot forming process, the workpiece undergoes plastic deformation at high temperature and the microstructure of the workpiece changes according to the plastic deformation. These changes affect the mechanical properties of workpiece. In order to optimize this process, both the plastic deformation of workpiece and its microstructural changes should be taken into consideration. Since material be...

H. Moslemi Naeini, M. Maerefat and M. Soltanpour,

In hot forming process, the workpiece undergoes plastic deformation at high temperature and the microstructure of the workpiece changes according to the plastic deformation. These changes affect the mechanical properties of workpiece. In order to optimize this process, both the plastic deformation of workpiece and its microstructural changes should be taken into consideration. Since material be...

In this work, cold bulge forming of an Aluminium-Magnesium (Al-Mg) sheet with a solid bulging medium is performed experimentally and numerically.  Mechanical properties and thickness variations of Al-Mg sheet are evaluated before and after the forming process.  The results indicated that the Al-Mg sheet has taken the desired shape without necking using the cold bulge forming process.  Also, the...

2015
Yun Huang YUN HUANG

Combustion instability is a process which involves unsteady chemical kinetic, fluid mechanic, and acoustic processes. It can lead to unstable behavior and be detrimental in ways ranging from faster part fatigue to catastrophic system failure. In terms of combustion methodology, combustion instability has been a key issue for lean premixed combustion. The primary objective of this work is to imp...

2010
S. Guessasma J. C. Sautet

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the co...

Journal: :international journal of advanced design and manufacturing technology 0
behrooz zareh m.sc, department of mechanical engineering, babol noshirvani university of technology, shariati street, babol, mazandran, p. o. box 484, iran. abdolhamid gorji assistant professor, department of mechanical engineering, babol noshirvani university of technology, babol, iran mohammad bakhshi professor, department of mechanical engineering, babol noshirvani university of technology, babol, iran salman nourouzi assistant professor, department of mechanical engineering, babol noshirvani university of technology, babol, iran

there are many parameters that affect the sheet hydroforming process such as fluid pressure, material properties, interfacial friction between blank and tool surfaces, etc. in this paper, a fem-based taguchi method is used to determine the effects of forming parameters on the quality of part formability in the process of hydrodynamic deep drawing assisted by radial pressure. four important form...

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