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Hi, I will like to design this vertical wind tunnel (large nozzle) to shoot air out at 10 m/sec at the exit and a diameter of 8 ft vertically downwards. However I want to understand the following parameters. Does anyone know about this? and know how to calculate the following parameters ?: We...

Hi, I will like to design this vertical wind tunnel (large nozzle) to shoot air out at 10 m/sec at the exit and a diameter of 8 ft vertically downwards. However I want to understand the following parameters. Does anyone know about this? and know how to calculate the following parameters ?: We...

Can anyone recognize which software do these pressure diagram charts are made from? Thanks http://files.engineering.com/getfile.aspx?folder=4ea4e8b0-2312-43fa-8a74-b07e4ac1028c&file=Untitled.png

chart 5http://files.engineering.com/getfile.aspx?folder=97dec93b-21a8-43de-9848-ded6e73eeb43&file=beautiful_chart5.png

chart 4http://files.engineering.com/getfile.aspx?folder=4428cd7a-d146-4f18-a5b7-2afcca725feb&file=beautiful_chart4.png

chart 3

chart 2http://files.engineering.com/getfile.aspx?folder=98f1a944-0529-4510-b380-60a884db0c04&file=beautiful_chart2.png

Hi, Which software was used for these plots? thanks.http://files.engineering.com/getfile.aspx?folder=ff81d2d9-66a7-4704-878f-5d80b45466a7&file=beautiful_chart1.png

Hi, In a Tensile test for concrete, the modulus of rupture is fr=7.5sqrt(f'c). Is this value equal to the Ultimate Tensile Strength f't ? Thanks

Hi I am trying to determine which Net pressure coefficients should I find for a walkway (open bldg.). The height is 10 ft and the Length is 250 ft long and width 10 ft, flat roof walkway. (h/L=10/250 = 0.04) The ASCE 7-10 provides a table for open roofs Fig. 30.8.-1 but it has a limitation only...

Hi Does anyone know the ACI requirements section for crack width control in concrete columns? I know that for beams and slabs is ACI 3108 Section 10.6, However, what is the requirement for columns? Anyone know? Thanks