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Table 2

Computational time requirements

Channel type	Formulation	Trials	Initial population considered	Computational time required (hr)
Straight	I	1 and 2	100	6.5
	II	1 and 2	90	5.4
	III	1	20	1.5
	III	2	30	2
Bend	I	1 and 2	200	37
	II	1 and 2	120	19.5
	III	1	40	8.4
	III	2	60	12.6

Channel type	Formulation	Trials	Initial population considered	Computational time required (hr)
Straight	I	1 and 2	100	6.5
	II	1 and 2	90	5.4
	III	1	20	1.5
	III	2	30	2
Bend	I	1 and 2	200	37
	II	1 and 2	120	19.5
	III	1	40	8.4
	III	2	60	12.6