Jousef Murad

⚡Ball Balancing PID System⚡

Raspberry Pi using OpenCV, a Pi camera and three servos.

💻 GitHub Repo: https://lnkd.in/evcfmetS

#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics #pid #control

⚡Karman Vortex Street Behind an Airfoil (NACA 4412)⚡

An attempt to visualize Karman vortex street behind an airfoil. This flow visualization experiment was carried out in a 6“ water tunnel.

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👉 Source: https://lnkd.in/ejfsP6We (Sarwesh Parbat)

#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics #fluidmechanics

How does a spherical bear look like? 🤓

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#engineeremind #mathematics

LaTeX all the way!

Source: David Birch

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🐦 Twitter: @jousefm2 // https://bit.ly/3mseM6K
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💧 Floating Water Bridge💧

When a high voltage is applied to pure water filling two beakers kept close to each other, a connection forms spontaneously, giving the impression of a floating water bridge. This phenomenon is of special interest, since it comprises a number of phenomena currently tackled in modern water science.

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Read more: https://lnkd.in/dDB_ZpS

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⚡Building a LEGO-Powered Submarine with Automatic Depth Control⚡

This radio-controlled submarine can maintain a steady depth or a certain distance from the bottom. It is equipped with a pressure sensor and a laser distance sensor.

👉 Raspberry Pi and PID control are used for automation. Tested in a swimming pool and a small river (at the end of the video).

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#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics #lego

The Navier-Stokes Equations⚡

Let’s start the weekend with a beautiful equation.

👉 Derivation of the NSE here: lnkd.in/dpQkiGF

#navierstokes #fluiddynamics #cfd #physics #turbulence

Surface Area of a Sphere 🌐

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#engineeredmind #science #technology #physics #mathematics

⚡Finite Element Analysis – Simulation vs. Experiment⚡

Validating an #FEA model of #additivemanufacturing #lattice deformation and contact.

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#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics #fem #simulation

🚁 Helicopter Main Rotor Blade In Flight Slow Motion 🚁

👉 The black devices you can see in the video are so-called pendulum (or pendular) absorbers: Vibration suppression of helicopter blades by pendulum absorbers

The pendulum absorbers are used for suppressing the vibrations in helicopter blades. Compared to fixed weight attached to the blade, the pendulum configuration allows for shifting of the damping range depending on rotor angular speed.

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👉 #MATLAB Courses & More: https://lnkd.in/exDuZWGJ

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#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics

If rockets were transparent 🚀🚀🚀

Kerosene RP-1 (Red) - Liquid Hydrogen LH2 (Yellow) - Liquid Oxygen LOX (Blue)

Weekly newsletter covering similar engineering topics: https://lnkd.in/dbFcRU3

Source: Hazegrayart (https://lnkd.in/d5e6xdK)

#science #rocket #spaceshuttle #rocketscience #chemistry #physics #sciencelover

Biomimicry is the emulation of the models, systems, and elements of nature for the purpose of solving complex human problems – enjoy! :)

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⚡ Ansys SimAI vs. Fluent ⚡

Using a cloud-enabled AI platform developed for simulation, engineers and designers can easily and reliably predict the performance of physics behaviour with lightning speed, such as fluid dynamics performance for automotive.

They can leverage already available simulation results to train the AI platform and then use the platform for incredibly fast performance predictions. This enables the very rapid testing of many design iterations and exploration of a wide design spaces.

Ansys #SimAI Prediction on new SUV geometry takes less than 1 min. SimAI Drag error compared to CFD is less than 0.5% (5 to 10 drag counts) and accurate skin friction field and wake topology prediction.

🌎 Source: Ansys (Mazen EL HOUT)
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#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics #cfd #simulation

The Finite Difference Method (FDM) - Finite Volume Method (FVM) - Finite Element Method (FEM)👇

The most commonly used numerical methods to approximate the solution of the transient Advection-Diffusion Equation are the Finite Difference Method (FDM), the Finite Volume Method (FVM), and the Finite Element Method (FEM)

The essential differences between these methods are illustrated in the figure.

💡 Using the FDM, the differential equation will be approximated using a different equation. This is a very easy method with an equidistant structured calculating mesh.

💡 The FEM approximates the solving space of the PDE, and the unknown function is interpolated by a set of basis functions that will help calculate the derivatives. It is more complex and has more flexibility decomposing the solution domain.

💡 The FVM starts with the integration of the PDE over a control volume. Using the divergence theorem, the integral over the volume will be substituted against an integral over the control volume's boundary. It is simpler than the FEM at first sight and still has the flexibility of arbitrarily decomposing the solution domain but with special volume decomposition requirements.

🌎 Source: https://lnkd.in/eUGpc9e

#engineeredmind #technology #engineering #cfd #fem #simulation

⚡Flow over airfoil at 30 degrees Angle Of Attack ⚡

Source: https://bit.ly/3ViHjsE

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#AirfoilFlow #AngleOfAttack30 #Aerodynamics #FluidMechanics #BoundaryLayer #LiftandDrag #FlowSeparation #ComputationalFluidDynamics #AeroDesign

⚡Lockheed Martin F-22 Raptor Maneuver⚡

Having the ability to quickly maneuver and point the nose of the jet wherever it’s needed is highly advantageous, and the Power Loop demonstrates the incredible way the F-22 can point its nose at will.

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#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics #f22

Computer Vision - The Right Package Size 📦

In 2020, packaging waste generated was estimated at 177.2 kg per inhabitant in the EU (varying from 66.0 kg per inhabitant in Croatia and 225.8 kg per inhabitant in Germany).

From 2009 to 2020, ‘paper and cardboard’ was the main packaging waste material in the EU (32.7 million tonnes in 2020) followed by plastic and glass (15.5 million tonnes for plastic and 15.1 million tonnes for glass waste materials in 2020).

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#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics #computervision #ml

⚡ How a Wi-Fi Signal Propagates ⚡

The Helmholtz equation is used in the modelling of the propagation of electromagnetic waves. More precisely, if the time-dependence of an electromagnetic wave can be assumed to be of the form sin(omega * t) and the dispersion relation given by omega = c*k / n(x) for some refractive index distribution n(x).

🌎 Source: Jason Cole (https://lnkd.in/eFpheD-x)
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#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics

⚡ NASA designed grippers that can lift massive rocks⚡

NASA’s Jet Propulsion Lab created these super-strong grippers by using microspine technology. Tiny claws give the device the ability to grip difficult surfaces.

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Source: TechInsider

#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics #nasa

Book of the Week – Data-Driven Fluid Mechanics: Combining First Principles and Machine Learning 📚

📚 Order book here: https://geni.us/0kVwa

Data-driven methods have become an essential part of the methodological portfolio of fluid dynamicists, motivating students and practitioners to gather practical knowledge from a diverse range of disciplines. These fields include computer science, statistics, optimization, signal processing, pattern recognition, nonlinear dynamics, and control.

Originating from a one-week lecture series course by the von Karman Institute for Fluid Dynamics, this book presents an overview and a pedagogical treatment of some of the data-driven and machine learning tools that are leading research advancements in model-order reduction, system identification, flow control, and data-driven turbulence closures.

Have a great weekend folks! ❤️

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#engineeredmind #science #engineering #physics #turbulence #fluidmechanics #cfd Miguel Alfonso Mendez

The Navier-Stokes Equations 💦

In 1845, George Stokes had derived the equation of motion of a viscous flow by adding Newtonian viscous terms, thereby the NSEs had been brought to their final form which has been used to generate numerical solutions for fluid flow ever since.

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#NavierStokesEquations #FluidMechanics #ViscousFlow #GeorgeStokes #NumericalSolutions #FluidDynamics #FluidSimulation #ComputationalFluidDynamics

🔊 Open Rotor Engine Simulation | #Aeroacoustics & #Aerodynamics 🔊

👉 Open rotor engines are expected to consume substantially less fuel when compared with traditional ducted turbofans. Before rotor engines are installed on modern aircrafts, community noise must be tested & minimized to ensure appropriate noise levels as planes fly overhead.

This simulation demonstrates the capability of SIMULIA #PowerFLOW solver to predict the aerodynamics and the aeroacoustics of an open rotor. These capabilities are instrumental for engine and aircraft manufacturers to make essential design decisions to ensure functionality.

One of the major noise sources in open rotors is the front-aft rotor interaction: the wakes coming from front blade trailing edges are conveyed downstream and impact aft blade leading edges. Several strategies exist to minimize this interaction noise: changing the number of blades per rotor, cropping the aft blade, re-twisting blades to shift vertical structures towards less sensitive regions, masking the engines thanks to the tail planes or wings, etc. In order to assess the tradeoff of each design decision, manufacturers need high-fidelity simulations like the one shown here.

🌎 Source: https://lnkd.in/e7sxXEk4
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#engineeredmind #science #technology #engineering #mechanicalengineering #physics #mathematics #cfd #simulation

⚡ Finite Difference Method (FDM) - Finite Volume Method (FVM) - Finite Element Method (FEM)⚡

The most commonly used numerical methods to approximate the solution of the transient Advection-Diffusion Equation are the Finite Difference Method (FDM), the Finite Volume Method (FVM), and the Finite Element Method (FEM)

The essential differences between these methods are illustrated in the figure.

💡 Using the FDM, the differential equation will be approximated using a different equation. This is a very easy method with an equidistant structured calculating mesh.

💡 The FEM approximates the solving space of the PDE, and the unknown function is interpolated by a set of basis functions that will help calculate the derivatives. It is more complex and has more flexibility decomposing the solution domain.

💡 The FVM starts with the integration of the PDE over a control volume. Using the divergence theorem, the integral over the volume will be substituted against an integral over the control volume's boundary. It is simpler than the FEM at first sight and still has the flexibility of arbitrarily decomposing the solution domain but with special volume decomposition requirements.

🌎 Source: https://lnkd.in/eUGpc9ev

#fem #fea #fvm #fdm

The wave equation is a partial differential equation that describes the propagation of various types of waves.
The equation appears throughout many fields in physics, including acoustics, fluid dynamics, electromagnetism, and quantum mechanics.

The one-dimensional equation was first discovered by d’Alembert in 1746 as he studied how vibrations propagated through a string, and the two- and three-dimensional equations were solved soon after by Euler during his study of acoustics.

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Source: https://lnkd.in/ds33PBj

#physics #mathematics #fluiddynamics #acoustics #engineering