Question 11) Vortices are usually shed from the rear of a cylinder, which are placed in a uniform flow at low speeds. The vortices alternatively leave the top and the bottom of the cylinder, as shown in figure, causing an altemating force normal because of generating a dimensionless relationship for Kánmán vortex shedding frequency f (1/s) as a function of free-stream speed V(7m/s), fluid density p (kgm³), fluid viscosity µ (kg/m.s), sound velocity c (m/s), surface roughness & (m) and cylinder diameter D(m). || I-Determine the nondimensional a parameters using repeating variables, involving f, , c and u as nonrepeating variables ii-the dynamics of Bhosphorus bridge is investigated in a wind tunnel for the vortex generation behind the wires. A 1/59 scaled down model of the hanging wires is used in the laboratory. If vortex shedding frequency of of Bhosphorus bridge 590 Hz is measured in the laboratory at 29 m/s. Then detemine the expected frequency in the actual case exposed to 190 km/h wind velocity.

Question 11) Vortices are usually shed from the rear of a cylinder, which are placed in a uniform flow at low speeds. The vortices alternatively leave the top and the bottom of the cylinder, as shown in figure, causing an altemating force normal because of generating a dimensionless relationship for Kánmán vortex shedding frequency f (1/s) as a function of free-stream speed V(7m/s), fluid density p (kgm³), fluid viscosity µ (kg/m.s), sound velocity c (m/s), surface roughness & (m) and cylinder diameter D(m). || I-Determine the nondimensional a parameters using repeating variables, involving f, , c and u as nonrepeating variables ii-the dynamics of Bhosphorus bridge is investigated in a wind tunnel for the vortex generation behind the wires. A 1/59 scaled down model of the hanging wires is used in the laboratory. If vortex shedding frequency of of Bhosphorus bridge 590 Hz is measured in the laboratory at 29 m/s. Then detemine the expected frequency in the actual case exposed to 190 km/h wind velocity.

Name: Question 11) Vortices are usually shed from the rear of a cylinder, w
Uploaded: 2024-03-20T06:56:55.000Z
Channel: Bartleby
Description: Question 11) Vortices are usually shed from the rear of a cylinder, which are placed in a uniform flow at lowspeeds. The vortices alternatively leave the top and the bottom of the cylinder, as shown in figure, causing analtemating force normal becau

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: The Power (P) required to drive the pump depends upon the diameter (D), the angular velocity (@),…

A: Total variable =P,D,ω,Q,ρ P= f(D,ω,Q,ρ) where P is a dependent variable

Q: arbitrary flow (Lagrangian pe Jnsteady, incompressible flow arbitrary flow (Eulerian pers- se from…

A: given:

Q: A block of wood (SG = 0.6) fl oats in fl uid X in Fig.such that 75 percent of its volume is…

A: Calculate the density of the fluid X. Weight of body = weight of fluid X displaced + weight of air…

Q: (b) A wind-tunnel experiment is performed on a small 1:5 linear-scale model of a car, in order to…

Q: height, T (Nm) mm O 58 67 70 72 75 76 76.5 0.6 089 1.1 1.2 1:3 1.3 4.4 1.4 kW Hp (100%) flow rate P₁…

A: To calculate and fill up the details of input section and output section in the tablegiven thatpump…

Q: Using primary dimensions, verify that the Rayleigh number is indeed dimensionless. What other…

A: The Rayleigh number is defined as:

Q: ensity, p = 1.20 kg/m³ and the air dynamic viscosity, µ = 1.80 x 10$ kg/m•s. = freestream velocity,…

Q: Required information Outside an inner, intense-activity circle of radius R, a tropical storm can be…

A: The velocity components are defined as: vr=∂ϕ∂rϕ=U0Rθvr=0vθ=1r∂ϕ∂θ=U0Rr

Q: In a steady-state bakery process, cakes are fed on a conveyor belt through an “enrober" where melted…

Q: An airplane wing, with chord length of 1.5 m and span of 9 m, is designed to move through standard…

A: Air: ν1= 1.51×10-5 m2/sV1= 7.5 m/s Water: ν2= 1.00×10-6 m2/sV2= ? m/s Scale model= D2D1=110

Q: Particles in liquids achieve terminal speed very quickly. One can measure the time it takes for a…

Q: A graduated cylinder full of water in the lab on a bench that has just been waxed. The cylinder is 1…

A: Given, Area of the cylinder, A=1cm2 Height of water, h=10cm

Q: Which of the following statements is NOT CORRECT for a truss structure. Each member of a truss…

Q: A baseball is thrown directly upward (in z direction) from the ground (z = 0) with some initial…

A: When a baseball is thrown vertically upward with initial velocity then it goes up to a certain…

Q: The drag force on a submarine, which is moving on the surface, is to be determined by a test on a…

A: Let's refine the solutions for both parts of the problem using the concept of dimensional analysis…

Q: For the flow of gas between two parallel plates of Fig. 1.7,reanalyze for the case of slip fl ow at…

A: Write the expression for the differential form of velocity distribution and variable thickness.

Q: The drag force (Fdrag) exerted by air on a moving car depends on a dimensionless drag coefficient…

Topic Video

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Trending now

This is a popular solution!

Step by step

Solved in 6 steps with 17 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A uniform stream overflows in a circular cylinder and then a periodic Kármán vortex street is created. Through repeating variables, how can I create a dimensionless relationship for Kármán vortex shedding frequency (fk), where free-stream speed is V, fluid density is p, fluid viscosity is μ, and cylinder's diameter is d?
In studying sand transport by ocean waves, A. Shields in1936 postulated that the threshold wave-induced bottomshear stress τ required to move particles depends on gravityg , particle size d and density ρ p , and water density ρ andviscosity μ . Find suitable dimensionless groups of thisthe problem, which resulted in 1936 in the celebrated Shieldssand transport diagram.
1. (a) The motion of a floating vessel through the surrounding fluid results in a drag force D which is thought to depend upon the vessel's speed v, its length I, the density p and dynamic viscosity μ of the fluid and the acceleration due to gravity g. Show that:- D = pv²1² (1) (b) In order to predict the drag on a full scale 50m long ship traveling at 7m/s in sea water at 5°C of density 1027.7225 kg/m³ and viscosity 1.62 x 103 Pa.s, a model 3m long is tested in a liquid of density 805 kg/m³. What speed does the model need to be tested at and what is the required viscosity of the liquid?
Buckingham Pi. A mechanical stirrer is used to mix chemicals in a large tank. The required shaft power P is a function of liquid density p, viscosity μ, stirrer blade diameter D, and angular speed w of the spinning blades. (a) use repeating variables p, D, u to find a relation between dimensionless power (1) and w (m2); (b,c) a small 1/3 scale model is used in water to predict the actual required power in a viscous liquid with SG =2 and μ = 12μwater. Find (b) the ratio of speeds, wwater/ wactual, necessary for dynamic similarity and then (c) the predicted ratio of powers Pwater/ Pactual. expecting unit : (a) π1 ~ D ; π^2 ~ D^2; (b) wwater/ wactual: 10^0; (c) Pwater/ Pactual 10^-3 SI constant Patm = 10^5 Pa; pwater - 1000 kg/m^3; pair ~ 1.2kg/m^3; µwater ~ 10^-3 N•s/m^2; pair - 2 x 10^-5 N•s/m^2 ; g = 9.8 m/s^2 =