Abstract

The paper reveals niceties of impact of river bank environment on vertical wind shear and subsequently on flicker in wind turbine which is sited on that surface. This is accomplished in a laboratory wind tunnel with artificial surfaces created in a wind tunnel. The various surfaces imitated in the wind tunnel are river sand, various sizes of pebbles of river bank, flowing water of river at high speed, flowing water of river at low speed etc. Wind turbine is tested for these sundry kinds of surface roughness. Here emphasis is given on establishment of empirical model of flicker initiated owing to vertical wind shear instigated because of sundry surface roughness of river bank topography. Values of flicker with projected empirical model and flicker from wind tunnel test are closer.

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