Introductory post on Delay and Sum Beamforming. Part 2 of DAS Beamforming, explaining frequency-domain DAS. Background In the previous two parts, we saw how a Beamformer works conceptually:...

Introductory post on Delay and Sum Beamforming. Part 3 of DAS Beamforming, continuation of this post. Explaining a real-world engineering use-case Beamforming process. Frequency-domain Beamf...

Continuing from my investigations and studies in Signal Processing, the next technique I want to explore is Spatial Filtering. Particularly, Beamforming. In many applications, particularly Automot...

There are these famous videos in YT, where a helicopter is apparently flying with stationary blades. NO Rotation. This is called the “Strobe” effect, and it is a purely photographic phenomenon, whe...

In the earlier post, I’d elaborated on the visualisation of the Fourier Transform, partly from the beautiful video of 3B1B and partly my own explorations. I did not stop exploring my understanding,...

I had started my journey in acoustics as a CFD engineer quite recently. And while I had solved quite a lot of complex problems on aero-acoustics (more posts on them later), I encountered a huge obs...

The 14th of January every year is usually celebrated in India as “Uttarayana”, or the (start) of the northward movement of the sun, astronomically speaking. As the days of the year pass by, the orb...

RANS To model turbulence, one method is by Reynolds Averaging the Navier-Stokes equations which leads to the Turbulence Closure Problem in the RANS equations (as discussed here). RANS equations ar...

Definition of Turbulence In fluid dynamics, turbulent flow is a fluid motion characterized by chaotic changes in the flow properties. It is in contrast to laminar flow, which occurs when a fluid f...

Emergent and Submergent Coastlines First, there needs to be an understanding of what emergent and submergent coastlines mean. The coasts of Emergence are coasts that experience a relative fall in ...