Engineering, 28.05.2020 20:57 sg3635939
A straight and non-moving linear vortex of the initial circulation 0 is submerged into a viscous fluid of viscosity and density , thus kinematic viscosity of (think about a straight tornado just formed in air). Due to the viscous effects, the vorticity surrounding this vortex evolves in time as a function of the above-mentioned parameters, the radial distance from the vortex center r and time t , i. e. 0 = f r t ( , , , ) . 1. Using the concepts of dimensional analysis, find a dimensionless form of this function f. 2. Using the concept of self-similarity, find the self-similar form of this function f. 3. Explain why it is beneficial for an experimentalist to establish this form of self-similar function without solving Navier-Stokes equations or experimental measurements.
Answers: 1
Engineering, 04.07.2019 18:10, settasav9641
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
Engineering, 04.07.2019 18:10, meganwintergirl
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Engineering, 04.07.2019 18:20, luisgonz5050
Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k
Answers: 3
A straight and non-moving linear vortex of the initial circulation 0 is submerged into a viscous fl...
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