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Data is provided for a wind tunnel experiment, flow over a cylinder, a pitot tube has been used to measure the mainstream velocity & the
Data is provided for a wind tunnel experiment, flow over a cylinder, a pitot tube has been used to measure the mainstream velocity & the measured data is: PStagnation=-0.050 [inch H2o]; PStatic= -2 [inch H2o] Diameter of the cylinder is 5 inches and measured pressure distance at = 900 is: P(Measured)= -4 [inch H2o] Given: =1.16kg,P =0, Length(Cylinder)=0.25m Air m30 Calculate: PROVIDE UNITS FOR ALL ANSWERS FOR CREDIT a. Main-stream velocity, b. Theoretical pressure at the wall of the cylinder at = 900 (in Pascal units and dimensionless pressure) c. Actual pressure at the wall of the cylinder at = 900 = 900 (in Pascal units and dimensionless pressure) Form Drag (Use values provided below for the numerical integration) P5=1.7 inch H2o P60=2.3 inch H2o P115=2.4 inch H2o P170=3.2 inch H2o d. Skin Friction Drag (Use values provided below for the numerical integration) 5=60 N/m2 30 =40 N/m2 55 =50 N/m2 80 =75 N/m2 a. What is Form drag and Skin friction drag? Discuss briefly. b. In general, what is effect of increase in Reynolds number on Form drag and Skin friction for low viscosity flow, discuss briefly
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