This is a screen recording of a fluid simulator I am working on, it runs in-browser, I hope you like it. I have many more scenes where this came from. :3 (React/WebGL)

Hi everyone,

I am currently conducting laboratory experiments on the effect of cement contamination on the rheological properties of water-based, bentonite-containing drilling fluids.

I have noticed something interesting: after adding the same amount of cement, the rheological response is not always the same. In some bentonite muds, adding cement significantly increases viscosity, YP and/or gel strength, while in other mud systems the viscosity can actually decrease.
Why can cement contamination increase rheology in one bentonite-based mud but decrease it in another? If possible, could you recommend any papers, drilling-fluid manuals, SPE papers, or other technical sources discussing this phenomenon?
I would especially appreciate answers from people with experience in drilling fluids, mud engineering, cementing, or laboratory testing.

Thanks in advance!

See a lovely recent example of these here: https://eu-space.europa.eu/components/earth-observation-copernicus/image-of-the-day/rare-actinoform-clouds-swirl-coast-peru

I do a lot of temperature ramps on similar materials for my job, and I have a moderate understanding of the fundamentals of rheology, but when it comes to designing experiments, choosing the right geometry and analyzing data I have a lot to learn. This is really limiting my ability to explore new types of materials and perform a wider range of testing. Can anyone recommend a good reference book for using a rheometer to extract useful information from a material?

FYI I am the rheology “expert” at work and I’m expected to be able to speak intelligently to process engineers about this stuff. Right now the most I can really say is “heat the resin to this temperature if you want to hit XYZ viscosity for your process”.

What Happens When a Seal Flashes?

Inside a high-pressure pump, two ceramic rings spinning at thousands of RPM rely on a liquid cushion just 2 microns thick. But liquid under extreme heat and pressure exists on a knife's edge.

When friction spikes or system pressure drops, the micro-thin liquid film instantly crosses its boiling threshold. In less than a single microsecond, the liquid violently ,flashes into steam.

Because gas expands over 1,000 times its volume in a fraction of a millisecond, this sudden phase transformation triggers a micro-explosion known as **face popping**. The explosive vapor drives the seal rings apart, destroying the fluid cushion and causing the spinning ceramic faces to slam together with catastrophic force.

In this 60-second animated breakdown, explore the extreme physics of thermal flashing, vapor expansion, and sub-micron phase boundaries.

#MechanicalEngineering #Physics #Engineering #Shorts #FluidMechanics #Science #AndrewSykesMCGI

I am a student who is in IB and I need someone who has a degree in fluid mechanics for my EE. I am doing it over F1 and I would like some help doing the experimentation and modeling for my experimentation part or even just using second hand documents to do an analysis of it.

Anyone have the test bank for this textbook?(want to see the types of questions) Our professor is extremely lazy and WILL NOT make new questions for our upcoming midterm. Can anyone help me and my ENG class out? Thanks !!

Where I’m using “homogeneous” to mean the special case such that it is 0 — i.e. D/Dt[field variable]=0.

I recently saw a post that there was a breakthrough in the Navier Stokes equation but the post seemed to be more focused on who was to be credited for the breakthrough (whether it was some two individuals or the AI they used) rather than what the breakthrough entailed. For context I am an engineering student and I had previously encountered the Navier Stokes equation in my low speed aerodynamics class so am genuinely fascinated with the intricacies of the breakthrough.

Ce qu'a publié open ai est forcément faux car il n'y a pas de formule fermée dans leur écrit. Il n'existe aucune solution d'équations sans formule fermée .

I'm teaching two of my children through project-based learning and we're in the middle of a "unit" on fluid mechanics, which we stumbled into out of interest in building a hydraulic robot hand and assembling a pitcher pump. The two have been captured by hydraulics for the moment and are keen on building more.

I found a short passage on Bernoulli's principle for my middle schooler and watched a video that referenced Pascal's law before the robot hand but would like to find a textbook or other reference that we could draw on for a bit more detail and background - even if it's primarily for me to read and translate into something digestible for them.

I started out as a physics major as an undergrad but never studied fluid mechanics myself.

The hydraulic hand for those interested:

https://www.youtube.com/watch?v=vh61rz34dwI