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charltonjames September 4, 2009 08:16

Urban wind flow modelling - formular needed

i am planning on using Star-CCM+ to model wind flow in city centre squares. However, before i do this, i am trying to establish an accurate formular for wind flow in urban areas. Thanks to another forum user (highnelly) i have the following formular for rural areas;

The following are the equations you need fro your wind profile in a rural (barren location) so they may need to be modified for city region:

where your ref vertical height, your roughness height, is von Karman constant; is your ref wind speed, is turb model constant; and is your frictional velocity.

Can anyone help out???



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