english:

 

 

                                 

 

 

until additional data are available to evaluate the flow near very wide buildings.

     The modified σy equation for a tall building is given by:

     The ISC models print a message and do not calculate concentrations for any source‑receptor combination where the source‑receptor separation is less than 1 meter, and also for distances less than 3 hb for a squat building or 3 hw for a tall building under building wake effects.  It should be noted that, for certain combinations of stability and building height and/or width, the vertical and/or lateral plume dimensions indicated for a point source by the dispersion curves at a downwind distance of ten building heights or widths can exceed the values given by Equation (1‑37) or (1‑38) and by Equation (1‑42) or (1‑43).  Consequently, the ISC models do not permit the virtual distances xy and xz to be less than zero.

 

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  APLICACIONES castellano: DIS CUS DES  RAD   english: DIS CUS DES RAD  

 

 português: DIS CUS DES RAD   italiano:   DIS CUS  DES RAD

 

français:  DIS CUS DES RAD