AN ANALYTICAL MODEL FOR EXPANSION AND DEPOSITION OF CHARGED SPRAY DROPS

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JAHANNAMA M.R.

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Journal: MECHANICAL ENGINEERING SHARIF (SHARIF: MECHANICAL ENGINEERING) Year:2008 | Volume:23 | Issue:41-42 Page(s): 127-136

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Title

AN ANALYTICAL MODEL FOR EXPANSION AND DEPOSITION OF CHARGED SPRAY DROPS

Author(s)

JAHANNAMA M.R. | Issue Writer Certificate

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Abstract

An analytical model is developed accounting for the expansion of an electrically charged spray, further to its temporal deposition on a target. The model employs the Gauss law to determine the electric field that arises from the charged spray, bounded by an earthed control surface. This, in turn, provides the electric force field acting on the spray drops, leading to the spray transient concentration. The concentration field, in combination with the electric field, results in a theoretical relation, which represents a deposition time constant as an index of the charging effect. The dependence of the time constant on a drop electric charge approves the positive role of a charged spray on improvement of the deposition within a shorter time interval. Although an increase in the spray concentration, as well as the use of larger drops, also enhance the deposition, this enhancement indirectly stems from an increase in the drop charge, which occurs due to those factors. The results obtained from the model are also verified against the direct solution of the Poisson equation.

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APA: Copy

JAHANNAMA, M.R.. (2008). AN ANALYTICAL MODEL FOR EXPANSION AND DEPOSITION OF CHARGED SPRAY DROPS. MECHANICAL ENGINEERING SHARIF (SHARIF: MECHANICAL ENGINEERING), 23(41-42), 127-136. SID. https://sid.ir/paper/128279/en

Vancouver: Copy

JAHANNAMA M.R.. AN ANALYTICAL MODEL FOR EXPANSION AND DEPOSITION OF CHARGED SPRAY DROPS. MECHANICAL ENGINEERING SHARIF (SHARIF: MECHANICAL ENGINEERING)[Internet]. 2008;23(41-42):127-136. Available from: https://sid.ir/paper/128279/en

IEEE: Copy

M.R. JAHANNAMA, “AN ANALYTICAL MODEL FOR EXPANSION AND DEPOSITION OF CHARGED SPRAY DROPS,” MECHANICAL ENGINEERING SHARIF (SHARIF: MECHANICAL ENGINEERING), vol. 23, no. 41-42, pp. 127–136, 2008, [Online]. Available: https://sid.ir/paper/128279/en

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