I am trying to calculate the friction factor for a Fanno flow in a constant area duct. I know the friction factor is based on Reynolds number however does the Reynolds number not vary along the pipe due to a change in dynamic viscosity? (caused by a decrease in temperature along the pipe). And...
Ok thankyou. In that case, what is the point in the nozzle converging to smaller area when the speed at the exit plane is simply dictated by the nozzle pressure ratio? i.e. why not use just a straight pipe?
No I am wondering if it will always correspond to ambient conditions directly at the nozzle exit? Will this always be the case irrespective of the nozzle geometry? (e.g. for a straight tube)
I am currently designing a convergent nozzle for use in experiments and wanted to check something:
Will the pressure and density of the flow always expand to ambient (following the isentropic relations) when it reaches the nozzle exit regardless of nozzle contraction ratio and length?
Any...
Hi,
I am currently researching methods available for manufacturing a half-span wing model (approx 0.5m span, low sweep delta wing of varying cross section) to be used in wind tunnel experiments. A recent paper suggested the use of epoxy and micro glass beads injected into an aluminium mold...