Momentum equation for straight electrically charged jet

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^s,px9x'jT6V}0Momentum equation for straight electrically charged jet水利论文L(?S|:_$tg~

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Abstract:A one-dimensional momentum conservation equation for a straight jet driven by an electrical field is developed.It is presented in terms of a stress component,which can be applied to any constitutive relation of fluids.The only assumption is that the fluid is incompressible.The results indicate that both the axial and radial constitutive relations are required to close the governing equations of the straight charged jet.However,when the trace of the extra stress tensor is zero,only the axial constitutive relation is required.It is also found that the second normal stress difference for the charged jet is always zero.The comparison with other developed momentum equations is made.水利论文FI)qX!{ Fcy{

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Ruo-jing ZHANG[1] S. H. HOU[2] C. K. CHAN[2]

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(i/Q8D d!L7yI;d&l:|0School of Aerospace Engineering and Applied Mechanics, Tongji University,Shanghai 200092, P. R. China;Department of Applied Mathematics, The Hong Kong Polytechnic University,Hong Kong, P. R. China水利论文_pC2hR o3B'm

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Journal:

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Applied Mathematics and Mechanics水利论文i7w;c0pQ#s@\

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年,卷(期):

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(Gs};r-C uB`UrU02011, 32(12)水利论文^-U1d*~9n&F G`

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:m)bZ9`&Z$iK.R.qK0electrically charged jet

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F7i&?n+w8EF7fo0stability

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electrospinning

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jet constitutive relations stress tensor straight required normal stress difference comparison results trace terms found close水利论文1?;E:W\~@

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!m'g@'\C j+v0the National Natural Science Foundation of China,the Research Committee of The Hong Kong Polytechnic University水利论文kH2o.e#Gog

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