Pipe Definition and 1000 Threads

Homework Statement What is the base frequency of a 20 cm pipe which is open on both ends. Again but closed on one end. Homework Equations u=velocity, \lambda=wave length: \lambda=\frac{u}{f} Velocity in air=348[m/sec] The Attempt at a Solution I understand these are standing waves in air. In...

I'd like to add a temperature probe to a 4" water pipe downstream of a centrifugal fill pump, but I am afraid of the probe shearing from being subjected to a constant force from the upstream pump (which pumps at about 400 gal/min). Naturally, my thought was to use the drag force equation, but I...

Hi there, I have a double-barreled question for you all. So I have two pipes connected to each other. The first pipe is 0.64cm and has a Re = 5000, the second pipe is 4.5cm and has a Re = 700. The two are connected so that the gas expands from the the first pipe to the second. Now, I wish to...

Hello; I have been toying with the idea of creating an Archimedes pump using PVC and 6 inch drainage pipe. The idea is that by using tubing coiled around a PVC core, and rotating it using torque on PVC collars, as long as the pump is angled correctly, and friction is sufficiently low (the...

If I have water being pumped through two lengths of pipe, both at 50 psi, but one pipe is 1.25" diameter and the other is 10" diameter, approimately how many gpm will be flowing through each pipe? Thanks in advance!

My chemical engineering is a little rusty after 25 years and I could use a little help with this real world problem. This isn't my project but I've been asked to advise. Sorry for the limited information. We have a 30 gallon tank with 75% hydrogen/25% nitrogen mixture at 100 psig. From the...

Hi, I just started a course in drilling and the first chapter is about various situations where pressure drops in the drill string (pipe) causes forces on the pipe. I understand that a pressure drop due to friction causes a downward force on the pipe. The fluid is "pulling" the pipe down...

I am making a basic structural engineering software program for modelling cylindrical pipes. I want to model the effect of fluid inside the pipes. For static fluid I let the user input the internal pressure and density of the fluid in each element. For moving fluid I additionally want to let...

I have some confusion about how blockages result in the laminar/turbulent flow of fluids in pipes. From my understanding, there is a certain diameter of a blockage in a pipe that will cause the flow to transition from laminar to turbulent (depending on the velocity of flow, etc.) What is the...

I need to find the velocity within a pipe , I know the flow rate and diameter Flow rate =0.01 Diameter =90mm Am I correct in thinking to use V =Q/A Where A is found using A=pi/4 x D^2 Using this I got A =0.0064m but somehow this does not seem quite right to me Can anybody...

Homework Statement Find D2/D1. See attachment. Homework Equations The Attempt at a Solution Ans: D2/D1 = 0.68 I can't figure this one out. Any special trigonometric identities that might help here? Thanks.

Homework Statement Many hot-water heating systems have a reservoir tank connected directly to the pipeline, so as to allow for expansion when the water becomes hot. The heating system of a house has 63.1 m of copper pipe whose inside radius is 7.69 x 10^-3 m. When the water and pipe are heated...

Homework Statement The Trans-Alaska Pipeline System (TAPS) carries around 100,000m3 of oil per day from the Northern Alaskan oil fields to the nearest ice-free port of Valdez, around 1300km away. The pipe has an outer diameter of 1.22m and a wall thickness of 12mm. Eleven pumping stations...

Consider the following: I have 2 PVC pipes, one is small enough to fit into the other with a little extra space. A rubber ring is placed around the smaller one to fill up the empty space, making a good seal to push air in and out of the larger one. Ignore any friction caused by the ring on...

Hi, How to calculate the filling rate of 32mm dia pipe(15m length) arrange vertically from ground to second floor with 0.2bar pressure from main supply? the storage tank capacity is 200gal at the roof of second floor. Tq

Homework Statement A cannula (hollow tube) is gripped by a force (1/3 of the cannula length). What is the deformation of the cannula due to the force. E=2.9x10^7 psi, Cannula Length L = 0.75 inches, gripped length = 0.25inches, Force =1 pound, outside diameter=0.02inches, inside...

Homework Statement What is the maximum flow rate that can be seen in a water pipe where city water is supplied to a building. The pressure behind the water is 50psi, and the inner diameter of the pipe is 2". Homework Equations bernoulli's principle The Attempt at a Solution I...

Hello Everyone, I have several questions regarding the deflection of a free-standing pipe wherein Force is applied on top. Appreciate any feedback that I can get. Supposing I have the following Pipe Specifications: OD: 7in ID: 6in Yield Strength: 80,000psi Modulus of Elasticity...

[b]1. Good day to all. Would appreciate all your help for my understanding please. I am quite new to this topic of fluid dynamics. a) Say i have a 1200mm pipe which eventually serves a main distribution network. However, I will close the valve to the distribution and allows the water to...

hi I am looking for a complete double pipe heat exchanger thermal and mechanical design. I've found some online sources like this http://scopewe.com/double-pipe-heat-exchanger-design-part-1/ tutorial. and book like process heat transfer by Kern. but I need newer books or online sources. thanks...

hello. I am asked to give a lecture on double pipe heat exchanger . I have studied books like process heat transfer by D.Kern and some online articles. I was wondering if other complete sources are available about http://scopewe.com/double-pipe-heat-exchanger-design-part-1/. I would appreciate...

So as a side project for my professor, I'm supposed to 1) build a recirculating simple pipe bend 2) experiment and get data 3) do hand calculations via fluids equations (Bernoulli) 4) simulate with solidworks 5) compare results Restrictions: budget and availability of finding products...

Hello, I am working on a project to be able to support a spray bar assembly with a pipe with a specific diameter. The spray arms, fully extended, sit at 45 deg on hydraulics. To perform maintenance, these hydraulics must be turned off, so a way to support this is needed. The support pipe 103"...

hi friends, I am going to program a double pipe heat exchanger designer software and I need to every detail on heat transfer and mechanical design considerations. I've read some on double pipe heat exchanger on net like this http://scopewe.com/double-pipe-heat-exchanger-design-part-1/ guide...

Hello! It has been years since I had physics at uni, and I have forgotten lots of it, so I need some help here. The issue concerns the underfloor heating pipes and how to reduce loss. Most conventional systems use insulation boards to slow down heat conduction towards the floor. Some...

Edit: I've realized that it's not called a 'jacketed pipe', but simply a double pipe heat exchanger. Apologies, English is not my first language. I have been asked to scour the webs for information about how to calculate the heat exchange in a jacketed stainless steel pipe, with hot water in...

How can this be done. I know it has to do with the length, but what about the width? Does that have any bearing?

I can't figure out why the length the a pipe (L) increases the change in driving pressure with respect to this law: Delta P = (8*mu*L*Q)/(pi*(r^4)) I would think that delta P wouldn't change because the fluid is incompressible. Does anyone have a conceptual explanation for the simple...

Homework Statement Assume that the wavelength of acoustic waves in an organ pipe is long relative to the width of the pipe so that the acoustic waves are one-dimensional (they travel only lengthwise in the pipe). Therefore, the equation governing the pressure in the wave is: ∂2p/∂t2-c2*∂2p/∂x2...

I have a 30" diameter pipe that is supported about every 5-6 ft using bolts in a steel pipe support. As you can see in the attached photo, there is a pretty good size gap between the bolt/nut and the top surface of the pipe support, and also between the two faces of the interface. My question...

Hello All,I was given a problem today that I could use some guidance on. I have a compressed air pipe flowing into a container. This container has a pressure of 5 psi while the pipe has a pressure of 90 psi. There is a valve that controls when the air is released into the vessel and only...

Hello, My knowledge on fluid mechanics is on a introductory level. When explaining, it would be great if you could explain in simple English and also like teaching to a student who isn't very good at the subject area! I've been reading a lecture slide and have been trying to follow the example...

Water flows at the end of an aqueduct into the upper end of a 500m long pipe. The pipe has angle of 30 degrees to the horizontal and its low end exits into the bottom of a collection tank. The collection tank can hold a depth of 120m, above the centre line of the delivery pipe exit. Extra liquid...

Siphon Breaker Vent Pipe Location (Sketch attached) Say I need to maintain a roughly constant liquid level in a tank (T1 in attached image), one way is to have a U-loop on the drain pipe. Problem is, this can get a siphon started in the geometry shown & entire T1 empties into T2. Not good...

Homework Statement I am trying to derive Poiseuille's equation using an infinitesimal volume element of the pipe in cylindrical coordinates as seen below. I am using x for the flow direction, u for the velocity in the flow direction, and μ for the viscosity constant...

Problem: Excessive settlement I was considering adding new material under the pipe to avoid settlement. But I ran into another problem which has to do which the pipe's edges. How to avoid shears there in silt clay soil? pipe depth is 4m. Thanks

Hi there, I am dealing with a pipe that is surrounded by air and trying to calculate the temperature drop. The inlet temperature is 1273K and the ambient air is 293K. In my quest to do so I have calculated the overall heat transfer coefficient to be around 10 W/m2K, which I believe for a gas...

Hi there, I'm trying to find out the temperature drop of flue gas in an uninsulated quartz pipe in ambient air. I am fairly confident with my approach but receive erroneous answers. I have approached the problem as follows: 1) Calculate the prandtl number 2) Calculate the Re number 3)...

Hey Guys! This is my first post so I apologize beforehand if there are any mistakes with my post :D But my question is... I have 2 water pipes that are connected to one pipe in the middle, but the distance from the 2 water pipes to the connection point are not necessarily the same. The...

There's a figure that comes with the question but I'm having trouble attaching it so I will describe it the best I can. There is a large cylinder labeled the reservoir. A horizontal pipe is connected near the base of the reservoir and it is open at the other end so fluid flows out (point B)...

I was considering installing an immersion heater inside a vertical standpipe of a water tower (4-ft internal dia) in order to aid in freeze protection for winter. However, during full flow the tower drains at a flow rate of about 4,000 gal/sec! I want to make sure that there are sufficient...

The Tube materials and their mechanical properties. Tube Material Y.S - Mpa U.T.S-Mpa Modulus of elasticity- Gpa Stainless steel304 215 505 200 Tube Size, thickness & corresponding bending radius are. Tube Dia & thickness Corresponding...

Homework Statement A thin-walled pipe with mass M and radius R (moment of inertia MR2) rolls without slipping on a horizontal surface. Inside the pipe, a solid cylinder of mass m and radius r (moment of inertia (1/2)mr2) also rolls without slipping under gravity. ##\alpha## and ##\phi## are...

I really enjoy physics and chemistry and do OK in math (not stupendous, but OK at it and enjoy it) and have been pressured by my parents to choose a STEM major like computer science or engineering (the latter of which I have zero interest in). I'm a freshman right now and still have time...

Hello, I'm stuck on what should be a fairly simple problem. Trying to calculate the size of motor required to rotate steel pipe at 0.33RPM around its axis, on 2 sets of rollers, 4 wheels total (hard rubber). Pipe 48" OD Mild Steel pipe 0.5WT 24m in Length Rollers 4 x 12" Rubber...

Homework Statement A copper bar with a cross sectional area of 4.40 cm2 and a length of 0.62 m has one end at 1 °C and the other end at 97 °C. Find the heat flow through the bar if the thermal conductivity of copper is 385 W/(m·K) Homework Equations R = (λ*L)/A I = ΔT / R k = 1/λ...

Homework Statement Consider a half pipe of height L. The middle section, non sloping part, has a friction coefficient of ##\mu_k = 0.1## and frictionless every where else. The length of this section is L. How many times can the skateboarder go back and forth before he stops? Homework...

Consider a half pipe of height L. The middle section, non sloping part, has a friction coefficient of \(\mu_k = 0.1\) and frictionless every where else. The length of this section is L. How many times can the skateboarder go back and forth before he stops? In the friction section, \[ \sum...

Lets say I have the following pipe with layers of different material (material is simply a example): As you can see in the middle there is a hole with just air thru it. If I fill that pipe with pressurized water, it will make OUTWARD pressure on that first steel pipe. Obviously because of...

Hi, I'm a bit confused. Say you're bending a cylindrical pipe (tube, hollow cylinder). So the neutral axis of the pipe will be in the middle of the pipe and all the material on the inside of the bend (to one side of the neutral axis) will be in compression, while all the material on the...