viscous Definition and 112 Threads

Hi all, I am new here, but in my (chemistry) research I have struck upon a problem that one of you might be able to help me with. I am interested to find an expression for the energy that it would require for an object to expand in a medium of known (dynamic macro-) viscosity. In other...

We push a ball through a viscous fluid with constant external force. As the ball moves, it compresses a spring. The spring resists compression with an elastic force f=kd, where k is the spring constant. When this force balances the external force, the ball stops moving at d=f/k. Throughout the...

Homework Statement Water (n = 1.00 10-3 Pa·s) is flowing through a horizontal pipe with a volume flow rate of 0.029 m3/s. As the drawing shows, there are two vertical tubes that project from the pipe. From the data in the drawing, find the radius of the horizontal pipe. Homework...

A 11.00 kg object starting from rest falls through a viscous medium and experiences a resistive force R = -bv, where v is the velocity of the object. The object reaches one half its terminal speed in 5.84 s. (a) Determine the terminal speed. 82.7 m/s (b) At what time is the speed of the object...

The other day I met a mathematician and I told him I was considering air as the surrounding fluid for the slow viscous flow around a body. And he replied: "what?. This is viscous motion, so you cannot consider air.", implying that I should use water instead. Who of us do you think was...

I was having trouble with this problem. please let me know how to approach this. thanks. The density of ice is 920 kg/m3, and that of seawater is 1030 kg/m3. What fraction of the total volume of an iceberg is exposed?

Hey, I have this homework thing where I have to model an object's motion through a viscous liquid. I'm to assume that the resistive force directed upward is kv. Now, I'm going to take the downward direction as positive and the up as negative.. Should my force equation be mg - kv = m(dv/dt)...

Hello: Need some help here. I am trying to Calculate the viscous drag for a body traveling through water at given velocity and wetted surface area. At this time I am not trying to calculate the pressure drag or wave drag. Basically what I want to know is how many Newtons of force are...

How would one go about proving the formula D = 1/2C(rho)A(v^2) I have a suspicion momentum can be used to the show the derivation of this, right ?

Hey guys. I have several questions (big test tomorrow!) so here they are: Does anyone know what "Viscous fluid flow" and what "nonviscous flow" is? Could anyone explain to me generally what a barometer is? I don't get why a helium balloon floats but a regular air baloon sinks. I actually just...

I am looking for detailed information about the operating dynamics of viscous couplings. When I search on the web, all I end up with is automotive sites that are selling them, telling you how to diagnose/repair them or explain what they do in a car. I understand what they do. I understand...

A viscous fluid is moving through a pipe. The flow is 2 x 10^-3 m3/s then you have a second tube with a fluid with twice the viscosity which is moving in a pipe whose length is 3 times the original with a radius 1.5 times the original. The pressure difference across this new pipe is 1/3 that of...