Specifications

University of Pretoria etd – Combrinck, M (2006)
Figure 2-7 Time characteristic of h
v
1
θ
r
(t) for r/a=2, µ
2
/µ
1
=1, and variable σ
1
/σ
2
(after Singh 1973).
Figure 2-8 Time characteristic of h
u
1
θθ
(t) for r/a=2, µ
2
/µ
1
=1, and variable σ
1
/σ
2
(after Singh
1973).
The curves for h
v
1rr
(t) reach a maximum at T>0 and then decay at a rate slower than the
case σ1/σ2=0, whose maximum occurs at T =0. With increasing σ1/σ2 (lower contrast
between sphere and conducting space implying more conductive space), the peak value of
h
v
1rr
(t) is reduced and delayed in time. Also, in late time the curves exhibit typical inverse
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