Frictional Losses in a Radial Flow?

I have a non-newtonian fluid flowing radially-outwards on a horizontal flat plate. The flow is assumed to be laminar. How can I calculate frictional losses between solid-liquid interface?

04 May 2018 3,545 3 View

Is there any relation between strain rate and shear rate?

I have a a strain rate as well as the shear rate of a flowing material, do these quantities have any relation? Can I compute the viscosity using these?

04 May 2018 6,871 0 View

Height of 3D Dome at location other than the centre (MATLAB)?

Hello, I have generated this 3D dome surface using MATLAB using the SURF command. I need to find the height (Z) of the dome at parts other than center (Like for example at (X=-2000, Y=-2000,...

04 May 2018 5,619 3 View

How can I effectively find diameters of the circle in each frame using DIP in MATLAB?

Hello, Good Day! Please refer to the GIF image below. I am trying to measure the increasing diameter of the circle here. I have to do it using MATLAB/ SIMULINK. The red stripes can be classified...

03 April 2018 6,565 6 View

Can Abaqus Model a flowing cement paste? i.e, a non-newtonian fluid?

I need to simulate a flow test experiment in ABAQUS, I am new to CFD. Can Abaqus do that? Please check the link below for a better idea https://www.youtube.com/watch?v=QfLRm3JB6PM

02 March 2018 1,336 2 View

Isoparametric mapping for quadrilateral elements?

I am a bit confused regarding how mapping from parent element to isoparametric element is done. I am attaching a jpg file with two mapping regimes. With reference to the photo, which one is...

11 December 2016 3,196 4 View

How does the compressive strength of reinforced concrete affect the ductility?

As per my previous concepts, the ductility of concrete in uni-axial compression decreases as the compressive strength increases.(As from the stress strain diagram, a low strength concrete fails at...

03 April 2016 6,702 11 View

Need help with mechanics problem (Principle Stresses)?

02 March 2016 5,532 5 View

How to extract Y values from the given value of X in excel?

Please find the image below, It might be a basic level question I have created a graph in excel for the given values of X and Y, its a curve with increasing and decreasing slope is there a way I...

04 May 2015 6,083 1 View

Can you help me with Issues while Modelling Concrete Beam in ABAQUS?

Dear All, I am modeling a Reinforced Concrete Beam using a smeared cracking model in ABAQUS, and simulating a four point bend test(2 point loading), and currently my model is too stiff compared to...

03 April 2015 8,807 4 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View

How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 View

How to increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View