I Think this is Good Platform to discuss My Problem
Can you Please guide me how to create mathematical model for System of Air Pipe -Engine-and Force on Piston
As in My case i want to build mathematical model for system in Which air is Flowing from pipe say 2.8 K/s and its enter in the valve to...
I have a spinoff on this question: https://www.physicsforums.com/threads/static-and-dynamic-pressure-in-a-cyclindrical-pipe.768080/#post-5340726
I have a pipe where flow enters at v1 . The pipe discharges into a volume which then continues with other pipes etc to ambient. I need to put a...
Hi,
To help me understand two phase cooling etc. I have some simplified heat pipe questions:
If a sealed, vertical pipe, half filled with water has heat applied to its bottom half and the top half is held at 120C, is it safe to say that the inner surface of the bottom half of the pipe will also...
Check out the following video of a magnet falling through a copper pipe.
http://www.sciencealert.com/watch-what-happens-when-a-magnet-is-dropped-through-a-copper-pipe
Hi all,
Is there a correlation between an Air Dryer capacity and the exhaust pipe diameter? How would a small exhaust pipe diameter (not able to exhaust air enough) affects the capacity of an air dryer? If it does, could you expand on this? Thank you
Homework Statement
We have a pipe open at both ends and having the length of 1 meter. After putting it into a tub of Mercury and thus filling it to the half, we close the upper end of it, and then remove it from the tub. What is the height of the residual column of the Mercury in the pipe...
I had to installed some IP bullet cameras in some PVC pipe on a Hopper dredge to protect it from the salt water spray. They are outdoor cameras but they are made out of aluminum and they will rust if left unprotected. I sealed them in the pvc and used a cgb from the wire as well as sealant on...
Homework Statement
Water flows through a circular pipe with a 180° horizontal elbow and exits to the atmosphere through a nozzle as shown in Fig. Q3. The diameter of the pipe is 300 mm and the diameter of the nozzle exit is 160 mm. The density of water is 999 kg/m3 . The mass flow rate of...
< Mentor Note -- thread moved to HH from the technical engineering forums, so no HH Template is shown >
The system shown in the figure below consists of L = 60 m of D = 50 mm diameter cast iron pipe (k/D = 0.004), two 45° flanged long radius elbows (K = 0.25) and four 90° flanged long radius...
Homework Statement
Water flows through a circular pipe with a 180° horizontal elbow and exits to the atmosphere through a nozzle as shown in Fig. Q3. The diameter of the pipe is 300 mm and the diameter of the nozzle exit is 160 mm. The density of water is 999 kg/m3 . The mass flow rate of...
Homework Statement
The 4000N concrete pipe is being lowered from the truck bed when it is in the position shown:
If the coefficient of static friction at the points of support A and B is 0.4, determine where it begins to slip first: at A or B or both at A and B
Homework Equations
It's not...
Can somebody provide a solution for this question?
convert 3 dimensional unsteady compressible NS equations to axisymmetric 2 dimensional incompressible laminar form for a cylindrical pipe, then make a derivation of streamwise velocity profile u(r) using the appropriate boundary conds.
thanks
I am living in an apartment and suddenly we started to get an electric shock, at random, when touching a water tap. Since I am an Electrical Technician, I started
my research on the origin of the problem, and after carrying out a series of tests I found out 'at the end' that turning off all...
Homework Statement
The problem is as follows:
A skater started at the top of a halfpipe that makes a 40 degree angle with the horizontal. He is now about halfway down the pipe and represented by the rectangle. His center of gravity is represented by Z, the midpoint of the circular movement...
I tried to work backwards and verify the magnetic field required by the LHC beam pipes. A circumference of 27km implies a radius R=4300 m. The beam energy E is 7 TeV per proton beam. Considering approximation E approximately equal to pc to get momentum (ultra-relativistic case). Plugging into...
I have a large hydrogen storage tank that vents when the pressure exceeds 150 PSI. I am trying to get a rough calculation of how much hydrogen we are losing. I know it is a 2 inch pipe and the pressure drops from 150 PSI to 120PSI. The venting lasts between 2 and 5 minutes. How do I...
Homework Statement
Calculate the frequency of: (a) the fundamental, (b) the first overtone, produced by a pipe of length 40 cm which is closed at each end. (Velocity of sound in air = 340 m s-1.)
Answers: (a) 425 Hz, (b) 850 Hz
2. The attempt at a solution
L = 0.4 m, v = 340 m s-1
(a) f1 = ...
Would a water pump for pressure be required for a submarine outfall for storm water drainage ?
Diameter of pipe 2 meters
Gradient 50
Horizontal distance from shore to outfall 200 meters depth about 16 meters, sine 50
Or would the pressure from gravity gradient be sufficient to overcome...
A question was posed to me with the following diagram. http://imgur.com/6ltYKd5
11 Sprinklers, in series with identical heads, but 10 and 11 displaying a much smaller spray pattern.
1. Is this possible, and under what circumstances.
2. What would a good solution be to prevent this?
My...
Homework Statement
Posted in picture below
Homework Equations
Bernoulli's Equation
P/pg + v1^2/2g + z1 = P/pg + v2^2/pg + z2
The Attempt at a Solution
Posted in picture below
Wasn't sure if what I did was correct...still practising the topic itself
Just made up a thought experiment. Looking for reviews. As follows: Assuming an "inflatable pipe" operating in vacuum to neglect ext. Influence, fluid flows through the pipe such that supports are only at the two rigid end connectors.The pipe will sag during operation due to fluid self weight...
Consider the heat equation
dT/dt - aΔT + v⋅∇T = S
where S is a source term dependent of the radiation intensity I and the temperature T. The fluid velocity v is prescribed.
We also consider the radiative transfer equation describing the radiative intensity I(x,ω,t) where ω is the ray direction...
Hi guys, I'm a student and I'm new to this forum. Currently me and my friends are having a small project for the upcoming stage performance at school. We are trying to build a smoke curtain. The system will have a fog machine with 300W power and some PVC pipes that lead vertically to 5 meters in...
Hello all,
This is the situation: a pipe, shown in de drawing below, is lifted at a constant speed of 1m/min. The pipe is closed at the top and open at the bottom. For obvious reasons, a ventilation hole is required at the top. The intention is to lift a minimum amount of water, in other words...
Hi all
We are currently conducting Charpy V Notch Test to the Longitudinal Weld Seam of a Steel Pipe. The specimens we have tests are of two different size : full size (10mm x 10mm x 55mmL) and 2/3 size (6.7mm x 10mm x55mmL).
We have conducted the tests severally time at -30degC. The results...
Homework Statement
Water flows at 0.25 L/s through a 9.0-m-long garden hose 2.0 cm in diameter that is lying flat on the ground. The temperature of the water is 20 ∘C. What is the gauge pressure of the water where it enters the hose?
Side question: does the velocity of the water flow need to...
So we all know that due to the conservation of volume flow rate, reducing the diameter of a hose pipe would increase the velocity of the water flow.(A*V is conserved)
But when the are of an orifice near the bottom of a water tank is reduced the velocity remains the same! Does anyone know why...
Hi,
I would like to make a homemade electromagnetic device. It would be a 5cm diameter metal cylinder inside of a metal pipe. I would use electromagnetism to lift the (heavy) steel cylinder up the pipe, and then release it. It's meant to be used as a sledge hammer.
Can I just wind a wire...
Hello PF. I'm currently tackling a problem at work that I could use some input on.
I am trying to gather data regarding the force applied by a swelling material against the ID of a pipe. The purpose is to determine how the force increases with swell before leveling off, as well as to see how...
Hi, what happens when I have a single pipe with pressure 1bar.
I split this pipe into 3 equal pipes with equal diameter.
What will be my pressure at the ends of these 3 equal pipes ?
From what I have been reading on the internet it seems that the pressure will be the same on the 3 equal...
So say I have a tank of water of about 2000mls which is at around 80 degrees celsius and is pumped around a copper system which is 3/8th inch thick pipe. how many meters would the water have to travel through copper pipe to return to ambient room temperature of about 20 degrees celsius. any help...
1. I am trying to help my grandson with his homework and I have to determine the flow of a fluid in a pipe. I am told that mass flow rate is 4Kg/s; density p is 1012Kg/m3; Diameters D1 = 300mm, D2 = 400mm; Pressure P1 = 700Pa, P2 = 600Pa; Heights y1=0mm, y2=100mm
2. I have applied Bernoulli's...
Was wondering whether a 2 kilometre section of 80mm asbestos water main was replaced with 150mm PVC then rejoined into the last 3 kilometres of old asbestos would it create pressure breaks. The head pressure is 50 metres. Cheers.
Homework Statement
I would like to define pressure loses through transmission line to the transducer. In transmission line I have a reducing union, filter and L pipe. How I can find this differences?
In case of frequency my reducing union reduce pipe diameter 6 mm to 3 mm how i can determine...
Homework Statement
Water is flowing along a pipe. Points B and C in the pipe are at the same height but point A is at a higher elevation.The pipe has the same cross-sectional area at points A and B but is wider at point C. Rank in order from largest to smallest, the pressures at the three...
I know this is easy but i need to know the flow velocity through a pipe reducing in diameter inside a canal.
the
water velocity is 3m/s
water depth is 1.5 m
the pipe is at the bottom
inlet diameter 0.9m
small reduced diameter 0.6m
outlet diameter = 0.8m
note: this is an open canal with...
Hey everyone. Four days ago I didn't know anything about fluids but I started my internship and got assigned a project that is all about fluids! And I need some help, this topic can get really complicated but I'm trying to take it one step at a time.
Problem Description:
There is a pump...
i have decided to heat pipe using wounding SWG 26 nichrome wire around the pipe,can anyone suggest me a good insulating bead which conducts heat well but is a good current insulator
I'm working in an engineering internship after my first year and we haven't covered fluid dynamics in my program yet. I've been assigned to find flow rates and velocities in several branches of a suction (dust collection) system in our factory. The main branch has a diameter of 30" and is...
i have built a pipe rack made out of carbon steel and needing to know how to figure out how much weight it will carry. the longest horizontal piece is 4" sch 40 x 60 inches long welded to 8" sch 40 carbon steel.
just trying to see if there is a chart of some sort
1) Alright, so the problem reads, "The liquid in a horizontal pipe of diameter d1 before a constriction is at pressure P1 and flowing with the speed v1, and then in the constriction with diameter d2 the gauge measures pressure P2. What is the density of the liquid?"
2) I'm assuming the...
Hi guys
I am working on some project that involves pipe wall thickness calculation, and I have one problem.
here is the explanation of the example:
http://pokit.org/get/?24c6e34b749030e74662402372ce5fc7.jpg
Please, can some one tell me what means tf/m2 (ton force/square meter ?) and how to do...
Hello everyone, I am not a physicist nor do I know that much about physics. I do however have a physics question and this seemed like a great place to get an answer. I will present my situation the best I can. I work in the Horizontal Directional Drilling industry. This industry installs...
I am thinking of burying a 3/4" water line which is tied into my outdoor 1/2" house spigot line. This buried line would run about 100' to where I can better use it for washing a car or irrigating a flowerbed. My question is: by taking the new addition of water line from a 1/2" feed water line...
Homework Statement
A closed and elevated vertical cylindrical tank with diameter 2m contains water to a depth of 0.8m.
A circular hole is made at the bottom of the tank with diameter 0.2m.As the water drains from the tank, compressed air above the water in the tank maintains a gauge pressure...
Hello everyone! I am new here. I have used this forum on and off through google searches in the past and learned a fair bit from the posts. This is the first time asking anything.
The question is probably extremely simple but has been overrun in my head for a week! It is in regards to...