Centrifugal Definition and 344 Threads

Hi! I am currently working on a project that includes rotating a water-filled container. The container is NOT spinning about its vertical axis, but about the vertical axis of the rotating disc. I am aware that the surface shape of water in a rotating bucket takes the shape of a parabola when it...

Hello, An object moves outward in shaft radially due to centrifugal force. lest say it weights 1kg . in a timestep=0.0001 it travels 0.0017 meters this is actually the difference of two radius, let say first radius r1 = 0.25 meters second r2 = 0.25 + 0.0017 meters rpm of the rotating system...

Does centrifugal force generate in increase in overall speed? For example, if I am driving down a highway on-ramp which goes in a circular fashion, with my speed slowly increasing, does my overall speed increase because of the centrifugal force generated from the circular on-ramp? Is more force...

Does centrifugal force (mv^2/r) act in any position of angular SHM? Please explain.

Hi the question is about bicycle and motorcycle dynamics How can we explain the motorcycle leaning in turn without using the centrifugal force term? You know the correct term for rotational motion is the centripetal force and it is toward the centre. I have a problem with rotational equilibrium...

Hi, I am a research student, working on rotary jet spinning. while spinning, nanofibers are formed but it's not attached properly to the collector. It became like a spider web. You guys have any idea why it became like that?

hello everyone I have spinning droplet. I want to calculate the effect of centrifugal force on each cell of the droplet. If I use F= Mass * angular velocity square * radius That gave big number and it is like the whole droplet rotation around that radius. It's looks easy but I really stuck...

Curvature drift in plasmas arise due to the centrifugal force that a particle sees when considering its guiding centre. Thus if one is following from the frame of the guiding centre, this drift will be observed. But for a stationary observer (let's say an experimentalist watching the plasma in a...

Hello everyone! I have seen several DIY projects which successfully gathered heavy water from normal water. For example Cody from codys lab used electrolysis to "enrich" the water. This however is a messy process. So i became curious, if this can be done easier by centrifugation. Based on...

Hello friends, Anyone ever thought of, or tried, or has come across an automobile with an EM clutch, probably electronically controlled? We have a CVT driven 2 wheeler with a centrifugal clutch, but we need to disconnect power at will (electronically), so an EM clutch was suggested. Anyone...

Hello, I am somewhat new to this forum but have a basic question that I have had for a long time. please excuse it if it is a dumb question. I understand how centrifugal force works - you spin something around and it wants to fly away from the center. And I understand that there are...

Homework Statement There is a cyllindrical glass (r=0.05 m) full of water. It is rotating around its vertical geometric axis with 3 turns per second. How many centimetres higher is water at the rim than in the centre of the glass . Water rotates together with the glass. Homework Equations...

Hi folks, I have a question regarding centrifugal compressors when a relief valve is included in the system. Allow me to explain... There is a centrifugal compressor supplying air to an aircraft engine. As altitude varies, the compressor provides enough pressure up to altitude "X" for the...

Why is resultant force directed towards the center of the circular path? Is it because centripetal force is greater than centrifugal force? If the centrifugal force is greater, then the ball will rise? (If the string doesn't snap)

I burned out my scavenged motor today and now I think I want to apply a little more thought to moving the project forward. I'm working on a centrifugal blower that can suck air through a charcoal filter so I can keep the air clean around my soldering area. I chose a tuna can for the housing...

I am also constructing a small boat as a test bed for a much larger houseboat. If we forget about practicality issues... and accepting that my BS econ degree from the 60's isn't helping me much, I have a simple question with a difficult answer I guess. 2 stage centrifugal pump. (Standard...

I want to understand the problem of centrifugal force with an aircraft in a turn. If I keep the wings level and input a certain amount of left rudder the aircraft skids and throws the turn coordinator ball to the right due to centrifugal force. The solution is to bank the wings until the ball...

How fluids would act around the circumference of a space centrifugal, where the habitable zones are. Given that we have a radial gradient of Artificial Gravity , plus Coriolis, inertia, frictions etc. Id expect some change. Will add a list of questions but this more like an open discussion...

Hi,I was reading about the centripetal and centrifugal forces then I felt a bit of contradiction in the explanations. It is said that the centripetal and centrifugal forces are the action-reaction pair of Newton's 3rd law and so they never act upon the same body.Centripetal force is acted upon...

Hey, I'm having some difficulty in understanding circular motion and it's forces. Here is the situation I'm on: Imagine you are on a smooth turn-table with smooth shoes and the table starts spinning. Because of inertia, and because the frictional force is not nearly enough to keep you going in a...

Homework Statement Homework Equations L = T-V The Attempt at a Solution I got a forumla for the lagrangian as

I am pumping water out of a pond that is being dug with a 30 h.p. centrifugal water pump. I am lifting the water about fifteen feet and discharging it at the same level as the pump. I feel lowering the pump near the water level and pushing the water up the fifteen feet would be more efficient...

Centrifugal force due to rotation of the Earth has among its effects the deviation towards the equator of a ball falling from height ##h## vertically on Earth. I do not understand what is the inertial explanation of this phenomenon. Once the ball is released there is no centripetal force that...

I'm studying effective potential in Newtonian gravitation. The mechanical energy of a body can be written $$E=\frac{1}{2}\mu {\dot{r}}^2+\frac{L^2}{2\mu r^2}-\gamma \frac{m M}{r^2} \tag{1}$$ Where \mu is the reduced mass of the system planet-star. Consider now the term...

Can someone explain me what is the connetion between centrifugal force and weight force thanks ? In which situation should I use the centrifugal force (that is a fake force) ?

So the problem is asking me to derive the centrifugal and coriolis accelerations of the moon when it is furthest from the Sun and when it is orthogonal to the radius between Earth and the Sun. Given: Radius of Moon's Orbit around Earth Radius of Earth's Orbit around Sun Mass of Earth Mass...

After reading a lot about railguns, light gas guns and other approaches to build an hypervelocity/hypersonic cannon, I wonder why the "centrifugal cannon" option hasn't been more thoroughly explored by any military power in the world. Yes, I know the old versions had a precision problem and were...

According to my lecture notes, for centrifugal impellers Backward curved blades have a outlet blade angle of less than 90, radial blades have curved blades have a outlet blade angle of 90, Forward curved blades have a outlet blade angle of more than 90. As such i have 2 questions 1) does the...

I used to think I understood this - big mistake! I've just watched a great classic Feynman lecture posted by another PF user (a superb way to spend 50 mins of you can spare the time) https://www.physicsforums.com/threads/i-found-the-best-teacher-of-physics.855335/ In that lecture, Feynman...

Hi I have uploaded centrifugal compressor performance curve. I want to know how Mass Flow vs Pressure Ratio curve plotted under different efficiency since efficiency is a constant for a compressor. Please help.

Homework Statement I have a doubt about the way to calculate the centrifugal acceleration for a point P that rotates with angular velocity ##w_1## wtr a inertial frame on a platform that rotates with angular velocity ##w## (##w_1>w)##. I want to find the centrifugal acceleration in the...

Homework Statement Consider a spring of natural length L_0 with constant k which rests on a horizontal frictionless surface. The spring is attached at one end to a fixed post and at the other end to a mass m. Suppose the spring is rotating around the post in a circle with angular velocity w...

Homework Statement I am working on creating a spreadsheet where you can input the parameters of an engine at a given rotational speed such as volumetric efficiency, boost pressure, atmospheric pressure and temperature, and compressor efficiency... It's been a very long time since I've done...

Hi - Can anyone help me out with a question. The answer seems obvious, but maybe so obvious that I'm jumping to wrong conclusions! Just been reading Guy Martin's book "When your dead, your dead" (good read by the way) and one of his stories is about breaking the world speed record for a wall of...

Homework Statement [/B]there's an image of the situationHomework Equations [/B]F= mω^2 RThe Attempt at a Solution [/B]so, in the image there are two spheres that exerts a tension on the string using their centrifugal, since the centrifugal bodies are two I expect that the tension is the sum...

Hey guys, So I had what I thought was a cool simple idea to show the effects of the apparent centrifical force. I glued the mouth of a balloon onto the end of a 1.5m length of a 10mm flexible tube. The idea in my head was that by spinning it around the inertial forces would result in effective...

While balancing rotating mass we consider the inertia force (centrifugal force) is equal and opposite to centripetal force which causes the rotation. if both force(applied external force on rotating mass) which causes the motion and force which resist motion (inertia force) are equal and...

Homework Statement an object is sliding on an elliptical hill shown in picture. what is the direction of (inertial) centrifugal force at each moment? Homework Equations F=mv^2/r The Attempt at a Solution I think it should be towards the center of ellipse and value of r in the formula varies...

Dear, I have a confusion related to the attached image which represents the curve performance of centrifugal pumps. My point is, why is the consumed power, on the same pump curve, is increased as the flow increases?! since the logic for me is the opposite at which the consumed power should...

HI, let's save introductions till later, I'd like to get right to it. two questions: If a person weighs 100 lbs and is on a centrifuge spinning at 1,000 MPH, what is the G-force exerted by his body? If a person weighs 100 lbs and is on a centrifuge spinning at 500 MPH, what is the G-force...

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'll start with this question, how much "mass" does something have to have before centrifugal force exceeds gravity on earth? I used basic physics of centrifugal force and gravity, used force vectors, and the math doesn't jive. This is what I mean. There are 2 forces on Earth that everything...

I was wondering if someone could help dissect my understanding of Centrifugal force and explain any errors in my logic. So imagining that I am driving a car and making a right turn. I make the right turn and am forced into the side of the door. I feel a force acting on me but after I make my...

Homework Statement You are standing 2.7 m from the centre of a spinning merry-go-round holding one end of a string tied to a 120g mass. The merry-go-round has a period of 3.9 s. Draw a system diagram of the situation. Draw an FBD of the mass in Earth's frame of reference. Draw an FBD of the...

I am trying to figure something out and having a lot of difficulty. I would sure appreciate some help. I have a situation where I will need either a fan or a prop. It will need to build up 10-20 lbs of pressure in a plenum but will also need to be able to provide a constant force a large amount...

Homework Statement Horizontal plate is rolling around its horizontal axis. On the plate few meters away from this axis there is a jar with a burning candle inside Homework Equations Where would go the candlelight/flame , i mean which side would it turn and why The Attempt at a Solution I...

I need to deliver air up to 5 meters high. I am thinking of using pump since I can find easily (no buying anything). Is it possible to deliver air using hydraulic centrifugal pump ?

As a result of various searches on the Net, I have ended up here on this fantastic site. Specifically, it was an old 2008 thread in which was closed, so in order for me to expand on such discussion I've decided to make my own thread; by which I will go a slightly different direction with...

Dear Experts, I believe that we use the concept of Pseudo Forces, to analyze mechanics within an accelerating frame of reference. Pseudo force seems to be a 'correction' in acceleration provided to all the points that are not riveted to the accelerating frame of reference. And centrifugal force...

A lab mate and I got into a discussion on how to properly balance a swing bucket rotor. This is different than a normal centrifuge in that there are buckets that swing out once spinning begins. In a standard centrifuge balancing is simple - it's just the same weight directly opposite your...