Consider three cast iron pipes in parallel with the following dimensions: Pipe Length [m] Diameter [cm] 1 800 12 600 8 3 900 10 The total water flow rate is 200 m³ /h at 20°C. Determine the flow rate in each pipe and the pressure drop across the system.

I want the method to calculate the Reynolds number, where did this number 435,000 come from(Marked in red) ? please very urgent

plz explain the procedure clearly…

10. Pump/motor E 25m Suction pipe 50mm dia Delivery pipe 50mm dia 142m long 8m long A 2m В Assume: f = 0.008 u in pipe = 2 m/s pump efficiency = 85% motor efficiency = 92% Determine: (i) pressure at C [-31.86 kN/m²] (ii) input power to motor [2.2.kW]

Please solve correctly, Show unit conversion (I don't know why there is conversion factor 1488 in the numerator)

1. Consider a two-dimensional flow which varies in time and is defined by the velocity field, u = 1 and v = 2yt. a) Is the flow field incompressible at all times? b) Compute the convective derivative of each velocity component: Du/Dt and Dv/Dt. c) By considering the velocity gradients, determine whether the fluid elements experience any deformation. What type(s) of deformation do they experience? d) Do the fluid elements experience angular rotation? Thus, state whether the flow field is rotational or irrotational. e) Given that the density of the fluid does not vary spatially and changes only with time, what differential equation for the density, p(t), must be satisfied for this scenario to represent a physical, compressible flow field? f) At time t = 0, the density everywhere is p = Po. Determine how the density changes with time, given the situation does represent a physical, compressible flow field.

I need proper steps and in good handwriting, and dont copy do on your own please

Engine oil at 40 C [density 876 kg/m^3, viscosity 0.2177 kg/m.s] flows in a 22-cm-diameter pipe at a velocity of 1.1 m/s. The pressure drop (in Pa) of oil for a pipe length of 24 m is ?

You are drinking water through a straw of length 20cm and diameter 4mm at a flow rate of 2mL/s. You can assume density of water =999Kg/m³, dynamic viscosity of water = 0.001Pas and acceleration due to gravity 9.81m/s². a) Considering laminar flow, what is the head loss hL through the straw? Provide your answer to 3 decimal places. hL = b) Consider that the straw is positioned vertically, what is the pressure gradient along the straw in vertical direction deltap/L. Provide your answer to 3 decimal places. deltap/L = kPa/m. m.

How do I answer this question?