A submarine can be treated as an ellipsoid with a diameter of 5 m and a length of 25 m. The submarine is cruising horizontally and steadily at 65 km/h in seawater (p = 1025 kg/m2, p 0.00108 Ns/m2). %3D Determine: i. The Reynolds number for the submarine and state whether the flow is in the laminar or turbulent regime. ii. The drag force on the submarine. iii. The power required to overcome the drag force. To surface, a total lift force of 1000 kN is required from a pair of NACA 0012 hydroplanes. Each hydroplane has a chord length of 1 m and a iv. span of 3 m. What angle of attack should be used?

A submarine can be treated as an ellipsoid with a diameter of 5 m and a length of 25 m. The submarine is cruising horizontally and steadily at 65 km/h in seawater (p = 1025 kg/m2, p 0.00108 Ns/m2). %3D Determine: i. The Reynolds number for the submarine and state whether the flow is in the laminar or turbulent regime. ii. The drag force on the submarine. iii. The power required to overcome the drag force. To surface, a total lift force of 1000 kN is required from a pair of NACA 0012 hydroplanes. Each hydroplane has a chord length of 1 m and a iv. span of 3 m. What angle of attack should be used?

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: A long circular cylinder rotates at a constant angular velocity of 100 rad/s while subjected to a…

Q: Please don't provide handwritten solution.

A: The given parameters are:Freestream temperature, T∞ = 245 KFreestream pressure, p∞ = 4.35 × 10^4…

Q: Determine the drag force for a plate with a length of 48 cm and width of 15 cm. The plate is…

Q: How you find minimum drag and velocity from the equations

A: Given: The drag, D = ax+[b(mg)2/x]

Q: A two-dimensional diverging duct is being designed to diffuse the high-speed air exiting a wind…

A: (a) The variation of the with x can be expressed as, The density as a function of x can be…

Q: A one-parameter family for the velocity distribution in the boundary layer may be expressed by U…

Q: Required information A torpedo 8 m below the surface in 20°C seawater cavitates at a speed of 21 m/s…

Q: FLUID MECHANICS 0.5m by 2m flat thin plate is moved at 5m/s on a 2-mm thick layer of SAE30 oil at…

Q: KNOWN: Speed and temperature of atmospheric air flowing over a flat plate of prescribed length and…

Q: 2. You are working for a glider manufacturer and have been asked to analyse the laminar boundary…

A: For the solution refer below images.

Q: A metal part (object 2) is hanging by a thin cord from a floating wood block (object 1). The wood…

Q: A smooth steel (SG = 7.86) sphere is dropped in glycerin. Determine its constant fall velocity using…

Q: Consider an aerofoil in a free stream with a velocity of 50 m/s at standard sea-level conditions. At…

A: Given:Free stream velocity, V∞=50 m/sPressure at a point on the aerofoil, P=9.5*104 N/m2Find:The…

Q: (a) The gap between two horizontal plates is 5 mm. The gap is filled with oil of a relative density…

Q: Air ( density :1,2 kg /m3 viscosity : 1.5x10-5 m2 /s ) flows over a flat plate of length 2,5 m and…

A: Given, ρ = 1.5 kg/m3v = 1.5 × 10-5 m2/sL = 2.5 mW = 1 mV = 1.5 m/s Total area exposed for drag (A)…

Q: Consider a commercial airliner flying at a speed of 540 mph (relative to the air) at an altitude of…

A: Givenairline flying at a speed altitude means molar mass, (M) temperature variation with altitude is…

Q: A liquid (? = 850 kg/?3; ? = 1.7 × 10−1 Pa ∙ s) flows tangentially past a flat plate. If the free…

A: 2 Length of the plate, L=10 mWidth of the plate, w=3 mLiquid density, ρ=850 kg/m3Liquid viscosity,…

Q: Question 2 Air flow at a constant speed (Us = 10 m/s) is forming a two-dimensional incompressible…

Q: A flat plate with a length of 2.4 m and width 0.9 m moves horizontally with velocity 1 m/s in still…

Q: (a) Use the y-momentum equation to show that the pressure gradient across the boundary layer is…

Q: QUESTION 6 Above a flat plate, a steady and two-dimensional laminar boundary layer grows without…

Q: a) Air at 30°C (density=1.165 kg/m³, kinematic viscosity = 16x105 m²/s) flows over a flat plate at a…

A: According to question:- density of airρ=1.165kg/m3kinematic viscosity of airν=16×10-5m2/sfree-stream…

Question

A submarine can be treated as an ellipsoid with a diameter of 5 m and a length of
25 m. The submarine is cruising horizontally and steadily at 65 km/h in seawater
(p = 1025 kg/m³.p = 0.00108 Ns/m2).
Determine:
The Reynolds number for the submarine and state whether the flow is in the
laminar or turbulent regime.
ii.
The drag force on the submarine.
iii.
The power required to overcome the drag force.
To surface, a total lift force of 1000 kN is required from a pair of
NACA 0012 hydroplanes. Each hydroplane has a chord length of 1 m and a
iv.
span of 3 m. What angle of attack should be used?

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

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 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

I need the answer as soon as possible
Pu Wings at supersonic flows can be modeled as a flat plate that have constant pressure distributions across their chord. Ignoring any viscous effects determine the drag force of the wing section. Round to the full N/m and make sure you use the standard sign convention (i.e. right hand rule). Use the following data chord = 1.5 m epsilon = 5 degree angle of attack = 20.0 alpha upper surface pressure = 60,000 Pa lower surface pressure = 150,000 Pa
PART A -5 For Air Assume: v=1.46×10 m²/s and p =1.225 kg/m³ Question A1 A flat plate with unit width is placed in a uniform steady two-dimensional flow of air with negligible pressure gradient. The velocity distribution of the boundary layer forming on either side of this plate has been given as: U /Us = 2.0(y/ 8) - (y/8)2.0, where U = 10 m/s. 1- Find and expression for the boundary layer thickness as a function of Rex. 2- At x=1.0 m calculate the shear stress corresponding to the points y=0.0,3.0 and 10.0 mm. 3- Calculate the boundary layer displacement and momentum thicknesses at x=1.0m. By using the calculated momentum thickness determine the drag force acting on one side of the plate between its leading edge and x = 1.0m. 4- At x=1.0m, calculate the mass flow rate through the boundary layer (mkg/s per unit width of the plate). What is the corresponding mass flow rate if the flow was inviscid (m; kg/s per unit width of the plate)? 5- By using appropriate equation (s) explain how the…
Q2: A) Assuming linear variation of velocity in the boundary layer i.e. (u/u) =(y/6), up to y= 8 and then u = u, determine using the integral momentum equation, the boundary layer thickness. B) The temperature ratio: [T,-T)/(T, -T)] = sin (zy/0.015) in flow over a flat plate. If k = 0.03 W/m.K, determine the value of convective heat transfer coefficient.
Evaluate the boundary-layer shape factor, H.
I want the detailed solution to understand a question
Pravinbhai