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A NUMERICAL INVESTIGATION IS PERFORMED IN THIS WORK IN ORDER TO EVALUATE THE AERODYNAMIC PERFORMANCE OF BUILDING CROSS-SECTION CONFIGURATIONS BY USING CORNER MODIFICATIONS. THE CAARC TALL BUILDING&NBSP;MODEL IS UTILIZED HERE AS REFERENCE GEOMETRY, WHICH IS RESHAPED&NBSP;CONSIDERING CHAMFERED AND RECESSED CORNERS. THE NUMERICAL SCHEME&NBSP;ADOPTED IN THIS WORK IS PRESENTED AND SIMULATIONS ARE CARRIED-OUT TO&NBSP;OBTAIN THE WIND LOADS ON THE BUILDING STRUCTURES BY MEANS OF AERODYNAMIC COEFFICIENTS AS WELL AS THE FLOW FIELD CONDITIONS NEAR THE&NBSP;MODEL’S LOCATION. THE EXPLICIT TWO-STEP TAYLOR-GALERKIN SCHEME IS&NBSP;EMPLOYED IN THE CONTEXT OF THE FINITE ELEMENT METHOD, WHERE EIGHTNODE HEXAHEDRAL FINITE ELEMENTS WITH ONE-POINT QUADRATURE ARE USED&NBSP;FOR SPATIAL DISCRETIZATION. TURBULENCE IS DESCRIBED USING THE LES&NBSP;METHODOLOGY, WITH A DYNAMIC SUB-GRID SCALE MODEL. PREDICTIONS&NBSP;OBTAINED HERE ARE COMPARED WITH EXPERIMENTAL AND NUMERICAL INVESTIGATIONS PERFORMED PREVIOUSLY. RESULTS SHOW THAT THE USE OF CORNER&NBSP;MODIFICATIONS CAN REDUCE SIGNIFICANTLY THE AERODYNAMIC FORCES ON THE&NBSP;BUILDING STRUCTURES, IMPROVE FLOW CONDITIONS NEAR THE BUILDING LOCATIONS AND INCREASE THE STROUHAL NUMBER, WHICH MAY HAVE AN IMPORTANT INFLUENCE ON AEROELASTIC EFFECTS.&NBSP;&NBSP;
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