Journal of Physics: Conference Series, Jan 1, 2011
A numerical method is presented for determination of higher-order dielectrophoretic forces on non... more A numerical method is presented for determination of higher-order dielectrophoretic forces on non-spherical particles. The method is applied to ellipsoidal particles of different dimensions subjected to electric fields with different degrees of non-uniformity. The results are compared against net force calculations using the Maxwell stress tensor method. The contribution from higher-order forces is shown to exceed the dielectrophoretic force based only on the dipole approximation when particle dimensions are comparable to the length scale of electric field non-uniformity. It is also shown that individual contributions from quadrupolar and octupolar dielectrophoretic forces strongly depend on particle aspect ratio.
Journal of Physics: Conference Series, Jan 1, 2011
A numerical method is presented for determination of higher-order dielectrophoretic forces on non... more A numerical method is presented for determination of higher-order dielectrophoretic forces on non-spherical particles. The method is applied to ellipsoidal particles of different dimensions subjected to electric fields with different degrees of non-uniformity. The results are compared against net force calculations using the Maxwell stress tensor method. The contribution from higher-order forces is shown to exceed the dielectrophoretic force based only on the dipole approximation when particle dimensions are comparable to the length scale of electric field non-uniformity. It is also shown that individual contributions from quadrupolar and octupolar dielectrophoretic forces strongly depend on particle aspect ratio.
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Papers by Hossein Nili