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Air at 20oC at atmospheric pressure flows over a flat plate at a velocity of 3 m/s. if the plate is 1 m wide and 80oC,
calculate the following at x = 300 mm.
1. Hydrodynamic boundary layer thickness,
2. Thermal boundary layer thickness,
3. Local friction coefficient,
4. Average friction coefficient,
5. Local heat transfer coefficient
6. Average heat transfer coefficient,
7. Heat transfer.
What forms do the equations of motion for an idealized string take if either (a) the linear density varies with position, or (b) the string hangs vertically supported only at the upper end?
Use the thin-airfoil theory to find the center of pressure (as a function of lift coefficient) and the moment coefficient about the aerodynamic center for the NACA 2412 and the NACA 4412?
a steel angle iron loaded in compression is added to a structure in order to increase its rigidity. although the two
To study the velocity profile of motor-oil flow in a circular pipe, it was proposed to conduct a test using water (instead of oil). The oil-conducting pipe diameter is 0.4 m and the expected average velocity is about 1.5 m/s. For the properties of th..
Twenty-five samples of steel beam were chosen and tested for Young's Modulus. Eight had a modulus of E = 30 x 10^6 psi. Two had a modulus of E = 29 x 10^6 psi. Fifteen had a modulus of E = 30. x 1-^6 psi.
air enters the compressor of an air-standard brayton cycle at 100kpa 300k with a volumetric flow rate of 5m3s. the
Calculate the pressure, specific volume and temperature at the end ofeach process in the cycle and the thermodynamic efficiency of the cycle.
A steam turbine operates with 1.6MPa and 350C steam at its inlet and saturated vapor at 30C at its exit. The mass flow of the steam is 23kg/s and the turbine produces 7,400kW of power. Determine the rate at which heat is lost through the casing of th..
the fluid used is r-134a. the flow of r-134a is 70 lbmmin. if r-134a enters a compressor at -10 deg f and is a
Using the graph paper provided, plot graph of voltage vs, current for the data in each table. Plot the entire graph on the same axes with voltage on the vertical axis and current on the horizontal axis. What is the similarity between these graphs? Wh..
Two collars C and D move along the vertical rod as shown. Knowing that the velocity of collar C is 50 in/s downward, find the instant centers of all three bars, the angular velocity of AB, the velocity of collard D.
Fluid Statics: Submerged Submarine, A submarine is at a depth of 2000 ft from the water surface. The atmospheric pressure above the water is at 14.7 psia
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