Pipe Definition and 1000 Threads

Hi guys: I am wondering with issue regarding high speed (subsonic) compressible air flow thorugh a pipe exit to atmosphere. So here is detail: Air coming from a reservoir and flowing thorugh an adiabatic constant area pipe and exit to atmosphere at the end of the pipe. Due to high...

Homework Statement The inside diameters of the larger portions of the horizontal pipe in Figure P9.40 are 2.80 cm. Water flows to the right at a rate of 2.00 10-4 m3/s. Determine the inside diameter of the constriction. Answer in (cm) Here is the picture...

I am trying to represent a helical pipe in x,y,z co-ordinants, would the x and y co-ordinants simply be multiplied by the equation of a circle if the growth of the helix is in the z direction? Any help would be appreciated. Thanks

Where am I going wrong? Appreciate if someone can take a look at this and show me where I am going wrong. A conical pipe with inlet diameter 80mm and inlet pressure 0.5 bar, is inclined so that the outlet is 2m higher than the inlet. The outlet diameter is 140mm, the fluid density is 1000 kg/m3...

Homework Statement resonant freq. in air for arbitrary length steel pipe with radius in the 3-8 cm range and wall thickness in the o.5 to 1 cm range Homework Equations unable to find a relevant equation The Attempt at a Solution

-Look up or derive the frequencies of the standing waves of a length of wire, L, clamped at the ends and under tension. -What are the similarities and differences between a vibrating string and a resonating pipe? -Does the diameter of the wire matter? -Does the diameter of the pipe matter...

hi, this is my first post here in this forum. i would like somebody here to help me in calculating the force exerted onto the pipe by a stainless steel ring of 10mm thickness, when it is shrunk fit on to the pipe by heating. thanks in advance

I'm working on a fluid flow problem that doesn't seem very complex but the solution is eluding me at the moment. Given a length of smooth tubing of known ID and roughness with water running through it, is it possible to predict at what velocity the flow will transition from "pipe" flow (fully...

Homework Statement A pipe organ playing in a concert produces a 440 Hz signal with a pipe open at both ends.if the ideal temperature is 20degrees, what is the length of the pipe(first harmonic) Homework Equations f=N/T f=1/T v=f*wavelength sound equation The Attempt at a Solution...

Homework Statement Water is flowing at 1 m/s in a circular pipe. If the diameter of the pipe decreases to four-ninth its former value, what is the velocity fo the water downstream? Homework Equations AV=AV [b]3. The Attempt at a Solution [/b (Area1)(Velocity1)=(Area2)(Velocity2)...

I need some help with a heat transfer issue. I am trying to calculate if a exposed non flowing water filled pipe will freeze based on a varying temperature profile that varies from 26 deg to 45 deg in 24 hrs. This will depend on the size of the pipe but that is a variable that can be changed...

I am new to the forum... thanks for your help. I have a moment problem that I am struggling with. I have an oil-well, that is modeled as a series of joined-up circular arcs. The arcs are not all in one plane, as the well twists and turns. Using vector theory and theory of planes, I have...

These are tough for me. How do I go about setting up an algebraic equation to solve for the velocity of a marble at Angle theta? Q: A marble spins in a vertical plane around the inside of a smooth, 20--diameter horizontal pipe. The marble's speed at the bottom of the circle is 3.0 m/s. The...

Hello all, I am new to this site and was hoping someone could help me. I run into this kind of problem annually. And my boss usually has me spend a boat load of money by oversizing pnuematic pipe "just to be safe". What I need to know is, how much cfm will a 150 ft long 1" copper pipe...

check this, i can't figure it out. A water pipe goes doewn a hill. the level of the pipe at the bottom of the hill is 23 m below the level of the pipe at the top. the diameter of the pipe is 2.7 cm at both ends. water is flowing through the pipe. at the top of the hill, the velocity of the...

I have question that I'm sure has been asked before. Maybe if you could point me to a thread that'd be great. The water flows steady discharging to atmosphere. I need to find the horizontal componant of force in the flanged joint & find if it's in tension or compression. I think I have a...

Water is flowing down a cylindrical pipe of radius r. (a) Write a formula for the volume, V, of water that emerges from the end of the pipe in one second if the water is flowing at a rate of (i) 3 cm/sec (ii) k cm/sec (b) Graph your answer to part (a)(ii) as a...

Hello all! This is a great site, congratulations! I think I need help for proceeding with my reaction engineering project. :rolleyes: Now the problem is this: I have a packed bed reactor whose dynamic modelling I am supposed to complete. At t = 0, there is still air in the reactor with...

I have a point a 3D space (say 0,0,0), a radius of the circle(say 2m), and know a single point that lies on the circle at a certain x co-ordinate, and have the corresponding y coordinate for the point on the circle. How can I calculate the Z co-ordinate for this point given the above parameters...

A storage tank is replenished by an inflow pipe which can fill it in 8 hours.If the tank is initially full and the outflow pipe can empty it in 12 hours,what proportion of the tank is full after 3 hours duration?

HI friends Please recommen any good book on the design and analysis of heat pipes

i wanted the techinical information. bending property of solid pipe and hollow pipe with same diameter. which will bend more and why ? i wanted the technical answer please help me out :smile:

Water in a glass pipe (pressure and volume) Hi, I have the following problem:we have a 1 meter long, thin glass pipe. It is open on both sides, we put that pipe 0,5 meters into a container filled with water. After that, we close the upper end which stucks out of the water, now we turn that...

A plastic pipe has an inner radius of a = 35.00 cm and an outer radius of b = 71.00 cm. Electric charge is uniformly distributed over the region a < r < b. The charge density in this region is 30.00 C/m3 A)Calculate the magnitude of the electric field at r = 0.44 m. B)Calculate the...

Hi, i have a rotameter reading, flow rate (lit/min), Head Loss(mm) and diameter of a pipe. from this i need to find out the Velocity of the water flowing through the pipe. iam confused as to what formula to use to find this out, i have searched through 2 textbooks and cannot find anything...

This Bike is a Pipe Bomb... This just seems ridiculous. The older story of a similar incident is even more so ridiculous though... And here's a pic and description of the sticker... http://www.stickergiant.com/page/sg/PROD/bicycle/mcs134?utm_source=froogle Who the heck is going to...

This was a question posed to me by a homeowner. I don't know very much thermodynamics and hope someone here might have a better understanding. They have a run of 3/8in copper pipe leading from their water heater to various taps. On cold mornings, it takes a long time, for hot water to flow to...

Okay. we were given a problem in Physics class regarding a PVC pipe, a potato and a piece of dowling(wood) we were instructed to stick both ends of the pipe into the potato and then (once we had a good plug in either end) push one plug towards the other through the pipe with the piece of...

Hi! I have the following equation for the entrance loss from an open channel to a pipe, but I'm not sure how it was derived: hloss = K*(V2^2 - V1^2)/2g I have always seen entrance losses as: K*(V^2)/2g, but why is the channel flow velocity considered in the equation above. Thanks...

Hi! I have the following equation for the entrance loss from an open channel to a pipe, but I'm not sure how it was derived: hloss = K*(V2^2 - V1^2)/2g I have always seen entrance losses as: K*(V^2)/2g, but why is the channel flow velocity considered in the equation above. Thanks...

We know that when there is a change in medium there is reflection of sound.when it passsess through a pipe open at both end's , sound reflects.Actually the medium is same inside the pipe and outside the pipe, then how can we explain the reflection of sound from other end of pipe?[/color]

There is a drawing of a pipe, with the left end (diameter = 5.0 cm, v2) being wider than the right end (diameter = 3.0 cm, v1). Water flows through a horizontal pipe and then out into the atmosphere at a speed v1=15 m/s. a. What volume of water flows into the atmosphere during a 10 minute...

Hi all! Let's say we are finding the friction loss for a pipe. And the reynolds number is low enough to use Blasius formula for the coefficient of pipe friction. What if I introduce some kind of fouling inside the pipe? Would the actual friction loss greater or smaller than the estimation...

I want to know more about physics. In fact, I want to possesses a physics Ph.D's erudition. The truth is, I blew it in my younger years...academically speaking. Given my financial and academic situation it is basically impossible for me ever to get back into college (unless I stretch it out...

This is a multiple choice question The fundamental frequency of a small diameter organ pipe is a) directly proportional to its length b) inversely proportional to its length c) independent of its length d) inversely proportional to its diameter e) directly proportional to its...

Hello. I'm having some trouble with this problem: A tuning fork is set into vibration above a vertical open tube filled w/ water. Water level is dropping slowly. As it does so, the air in the tube above the water level is heard to resonate w/ the tuning fork when the distance from the tube...

Information: The frequency of the note {\rm F}_4 is f_F. 1. If an organ pipe is open at one end and closed at the other, what length must it have for its fundamental mode to produce this note at a temperature of T? The speed of sound is v_s. I used the equation f_n = \frac{nv}{4L}...

This was a question on my last exam for physical chemistry. There were no examples in the book as to how to do this question and I think it pertains to physics. I would like to know how to do this in the event that it appears on the final. "An iron pipe 2 m long and closed at one end is...

I am building this project which involved to PVC pipe chambers to be semi-pressurized (I know PVC isn’t intended for pressure, but I am not talking 200 psi, 40 to 60 psi theoretical MAX, usually around 5 to 10 psi). I have a pretty good depiction of the set up made in ASCII art, but I...

I need some help with this question. Q: Poiseuille's equation shows that for laminar flow the volume flow rate through a pipe in proportional to the product of the pressure difference and the fourth power of the radius. The viscosity of water is 1.0*10^-3 Pa.s a) Water in a pipe is flowing...

The horizontal pipe has a cross-sectional area of 40.0 cm^2 at the wider portions and at the constriction. Water is flowing in the pipe, and the discharge from the pipe is 6.0 x 10^-3 m^3/s (6.0 L/s). a) Find the flow speed at the wide portion. b) Find the flow speed at the narrow portion...

Hi. I'm trying to determine the flow rates of water in a pipe network. At a junction in a pipe, for example a simple y junction where the water heads out of a tap down a short length of tube before splitting into two lengths of tube of the same diameter, would the head loss equation for one of...

Anyone please help .. Water is fed by a tank to the bottom of a hill by a pipe which is diagonally positioned. Determine the gauge pressure? I was able to do that. Now it says what if the water came straight down from a broken pipe (straigth vertically)... how high would it shoot up...

I have no idea how to solve this problem I know bernoulli's equaiton and the equation of continuity, but I don't know how to apply them to this problem...If someone could get me started I would be very appreciative. My final exam is monday and I fear this problem is going to be on the exam...

I have two problems that I can not figure out. Thanks for your help. Problem #1: A horizontal pipe 10.0 cm in diameter has a smooth reduction to a pipe 5.00 cm in diameter. If the pressure of the water in the larger pipe is 8.00 x 10^4 Pa and the pressure in the smaller pipe is 6.00 x 10^4...

In my application I have a very long horizontal water pipe moving water at very high pressure. I want to keep the velocity low so as to reduce the viscosity/frictional losses to the pressure. But when I apply Bernoulli's principle to the find the exit velocity, I seem to get the same high...

Hi, I am trying to estimate the flow rate in a long pipe of rectangular cross section. The pipe is 100 m long and has twenty 180 degree turns. I have been able to calculate the pressure drip for a 100m straight pipe, but I have not been able to estimate the losses due to the turns. Is there...

I'm preparing a demo for my class... I have a light pipe (a clear, solid plastic pipe about a half-inch in diameter). Incoming light is always limited to incident angles less than the critical angle -- so there's total internal reflection (the basis of fiber optics). The pipe is...

Hi there, I'm struggling with a question that I've been given regarding the force on a bend in a pipe, and I wondered if any of you guys could help me out with a few clues. The question is as follows: A contracting pipe bend turns water through 135° (In a horizontal plane) before discharging...

Hey guys, I've been reading threads on here for a little bit and now I have a question I need some help with. I tried doing a search, but I didn't really know what I was looking for so it wasn't too successful. But here it is: My boss gave me this question to figure out and I'm not really...